GEOLOGY & MINERAL RESOURCES OF SIKAR DISTRICT. The district derives its name from the town of Sikar which is also headquarter of the district administration. The district lies in the north eastern region of Rajasthan at an average altitude of 431 mt. It stretches between 27° 07' to 28° 12' latitudes and 74° 41' to 76° 05' longitudes. It is bounded in north by Churu and Jhunjunu district of Rajasthan and Mahendragarh district of Haryana, on the west by Churu and Nagaur districts, on the south by Jaipur and Nagaur districts and on the east by Jaipur district. The district has an area of 7732 sq kms. and a population of 18,36,572 (1991 census). The district is part of Jaipur division and is divided in three sub divisions, Sikar, Fatehpur and Neem-kaThana . It comprises six tehsils namely Fatehpur, Lachhmangarh, Sikar,Neem-ka- Thana, Sri Madhopur and Danta Ramgarh . The district headquarter is 116 kms. from Jaipur and is well connected by road and metergauge railway link to Jaipur, Delhi, Bikaner etc. The general shape of the district is of an irregular crescent or a bowl. The district can be broadly divided in to three natural divisions namely (i) the desert area in the north western portion (ii) The semi desert area with hillocks on the central portion and (iii)the undulating and hilly area in north and north eastern portion. The major part of the district is a sandy tract but it is more so towards the north of Sikar which forms a part of the great Indian desert. The hills in the district forms part of the Aravalli ranges. These run from south to north dividing the district in two equal parts. Area south of Khandela in Sri Madhopur tehsil in central portion of district is. an undulating plain, There are no perrenial rivers in the district. GEOLOGY The major part of the land which is now district Sikar seems to have witnessed a storm in ocean which washed this area and left its marks in the shape of sand layers visible every where. This area is semi desert which formed the bed of an ocean. The sourthen and south eastern part of the district is occupied by loamy soil and hills of the Aravalli range. The geological succession of Sikar district is as follows: Formation Rock Type Recent to Sub Recent Post Delhi Sand, alluvium etc. Granite & Pegmatites (Intrusive) Schist, Dolomite Marble, Phyllites. Ajabgarh Group Delhi Supergroup Alwar Group The rock types exposed in the area belong exclusively to Delhi Supergroup of meta sediments which are separated from the older Aravallies by a conspicuous unconformity. The prominent exposures are seen on Neem-ka- Thana hills situated in the eastern and north eastern parts of the district. The Delhi Supergroup rocks are divided into Alwar and Ajabgarh Group. The metasediments of Alwar Group are characterised by dominance of arenaceous rocks consisting of quartzits of various types. These rock types are seen in the eastern part of the district along the continuation of Khetri belt in the south central part. Besides many isolated out crops occur in Saladipura, Sevli, Khandela and Kotri. The regional strike of these rocks is north south. In Saladipura area a major anticline exposes the amphibole quartzite, marbles and schists. Its core is occupied by basic intrusives later metamorphosed to epidiorites and amphibolites. Exposures seen near Byore, Roopgarh and surrounding areas in the south central part of the district consists of quartzites of different types with subordinate amount of mica schists. The general trend of rocks is NE-SW to NNE-SSW with variable dips towards west. The rocks of Ajabgarh formation are characterised by large portion of calcareous rocks. The main rock types are marble, calc-gneisses, calc silicates, phyllites and mica schists. The general trend of the rocks is north east-south west (NE-SW) dipping low towards west. The Ajabgarh formation represented by quartzites, gneisses and amphibole marble are best exposed south of Kotri Rampura and around Atheaga. Igneous intrusives of both basic and acidic rock types are exposed throughout the district. The basic intrusive including epidiorites and amphibolites in form of veins sheets. The acid intrusives include granite and pegmatite occuring as sills and dykes. The important mineral deposits of the district are described below:- MINERALS OF SIKAR DISTRICT Sikar district is endowed with some important mineral deposits of the state. It has vast resources of pyrite near Saladipura and lime stone in Neem- ka Thana areas. Other minerals avaialbe in the district are copper, iron,apatite, calcite, beryllium, fluorspar, feldspar and barytes. The details of mineral deposits are given below. Copper . Copper mineralisation occurs as parallel zones from Mothoka in the north to Ahirwala in the south (over a length of 35 kms.) with in the rocks of Delhi Super group. The investigation carried out in this belt has revealed a number of isolated and detached prospects. In Baleswar, a reserve of 1.5 million tonnes containing 1.1 % has been established. Copper - molybedenum mineralisation has been reported from Tejwala-Ahirwala, Chiplata prospects. In Tejwala block 0.5 million tonnes reserves with 0.5% Cu have been estimated. Stains of malachite-azurite and disseminations of primary sulphides have also been observed near Harsnath Ghateswar, Dariba & Patan. Pyrite Investigations carried out by G.S.I. near Saladipura established the presence of Sulphide mineralisation consisting chiefly of pyrite & pyrrhotite with minor amount of sphalerite over a strike length of 7 km. in two zones. The deposit is located about 1.5 km. north west of Saladipura village which is 120 km. from Jaipur via Sri Madhopur. The exploratory drilling has revealed that gossan body extends to a depth of 36 to 47 mts from the surface beyond which there is rich sulphide mineralisation consisting of pyrite and pyrrhotite with minor amounts of sphalerite. The mineralisation has taken place along sheared biotite-quartzite, biotite-amphibole, quartzite and phyllites belonging to the Ajabgarh Group of the Delhi Super group. The width of the ore body varies from 6.47 to 52.41 metres and its depth persistance is beyond 300 metres. Based on the detailed drilling the total ore reserves estimated in three blocks are given below: Block Ore reserves (in m tonnes) Av.grade %s Sulphate content (in m. tonnes.) 25.82 27.65 7.12 B 25.64 18.24 4.67 C 22.42 19.10 4.27 A 73.88 16.06 The area is leased out to M/ s. Pyrite, Phosphate & . Chemicals Ltd., a Govt. of India undertaking. Beryllium (Beryl) The occurrences of beryl are reported from Torda, Buchara, Churla and Sanwalpura areas in Bairath tehsil. The areas are about 35 kms. east of Neem-KaThana railway station. Here the granite pegmatites are exposed in wide area in which beryl occurs as one of the constituents. Feldspar Green variety of feldspar has been obtained from Kachrada mica mines in Torawati area and the soda feldspars have been obtained from the granite pegmatites of Buchara area as a by product of beryl mining. Mica The mica mines of this district are located in the schistose formation of Delhi Supergroup. A few mines of the district are at Kachrada, Makri and Maonda situated in Neem-ka- Thana tehsil. The Kachorada mines have produced green variety of mica while the others are of heavily stained ruby quality. The mines are now closed. Soap Stone Impure talc occur near Dariba about 20 kms. from Neem-ka- Thana railway station. No detailed work on the same has yet been done. Fluorspar Fluorspar mineralisation is found to occur around Salwari (Chokri) village in 10 kms. area. It is located at a distance of about 6 kms. from the main bus route from Khandela to Udaipurwati. The mineral occurs in a very fine grained pink granite which is intrusive into biotite-schist ofAjabgarh Group and is aplitic in nature. On the basis of detailed prospecting and exploratory drilling carried out by D.M.G. 3,50,900 tonnes of proved reserves containing 11 to 21% CaF2 3,44,000 tonnes of probable reserves (10to 15% CaF2) have been calculated. Iron Ore Dabla area :- Several scattered iron ore deposits around Dabla railway station have been reported. The area comprises medium grained pink, grey coloured granite rocks, partially weathered at surface. Iron oxide is an accessory mineral in these granites. Small segregated rolled masses of iron oxide in the form of haematite are seen. The iron content varies from 50 to 60%. Thoi area :- Occurrences of iron ore are observed east & north of Thoi village. The micaceous haematite was being mined till some time back. Neem-ka- Thana area:- This includes two deposits (i) Bagoli Sarai- Papra- Pachlangi area, which is about 10 km. west of Neem -ka- Thana railway station. The other one is (ii) RaipurNanawas- Toda Chiplata area which is about 16 to 22 km. east of Neem-ka-Thana railway station.. In the first deposit ore occurs as haematite quartzite bands at the contact of schists & quartiztes. In the second locality the ore body occurs as bands in the schists. The iron content varies from 59 to 67%. The ore occurs as micaceous haematite, magnetite and massive haematite bands app. 7 mts. in thicknesess striking over a length of 1.5 kms. In the same continuation small bands of iron ore occur near TodaChiplata. The ore is of inferior grade and contains high phosphorous. The average Fe content is 47% and about 0.6 million tonnes reserves have been assessed in this area. There are 3 leases of iron ore in district. Phosphate \ Phosphate occurs in form of apatite. The apatite deposit is located near Kerpura Salwari village in rocks of Delhi Super group and Post Delhi intrusives. Apatite occurs as irregular veins, stringers and disseminations in quartz veins, amphibolites and granite. pegmatites intruded in gametiferous biotite schist. A reserve of 21,520 tonnes of ore containing 15.14% P2O5has been proved with another 16,000 tonnes of 15 % P2O5grade in probable category. Calcite Maonda:- The mineral occurs in steeply dipping veins near Maonda village about 7 km. from railway station. The veins are about 0.75 mt. to 1 mt. in thickness and are seen criss-crossing lime stone and microgranites. It is quarried in small pits. Two important quarries viz. the Bhilkajiwali and Bada khet in this locality have given good production. Raipur : It is about to km. from the Dabla railway station on the Rewari-Phulera chord line. Calcite occurs in the form of pockets and veins in metamorphosed impure lime stone. Department of Mines and Geology has carried out detailed prospecting work in this area and 39,300 tonnes calcite reserves have been proved. Barytes Barytes deposits are located about 2 km. NE and SSW of the villages Kharakbingpur and Naroda respectively. The area lies 20 kms. NE of Neem-Ka-Thana on Neem-Ka- Thana to Patan road. Barytes is found as fissure filling in weak zones trending in N-S direction along bedding planes and is associted with calc-schists of Ajabgarh Group of Delhi Supergroup. There are two veins of barytes with 1 to 2.5 mts. partings and are traceable for a strike length of about 80 mts. The barytes samples on analysis shows that the percentage of BaS04 varies from 67.80 to 87.80% Lime Stone Patan: The Patan lime stone is located 16 kms. SE of Dabla railway station on Phulera -Rewari section. The lime stone of Ajabgarh Group of Delhi Supergroup occurs as a series of large & small low lying hillocks extending from Daulatpura to Balupra through Rampura and Jhamas. It is off white to grey in colour and crystalline in nature. On the basis of 255 mts. core drilling spread over 9 boreholes reserve of 6.98 million tonnes containing 46% to 54% CaO and 2 to 3.5% MgO have been estimated by the Department. Maonda: The Maonda lime stone deposits are found to occur in and around Sikarwari, Kala Khokhra, Lamba Marhi, Dhamani hill, Kali-Pahari villages. The nearest railway station Maonda is about 11 kms. from the deposit and is located on PhuleraRewari metergauge section. The limestone is dark grey to white in colour, crystalline, fine to coarse grained and compact. On the basis of the 20 boreholes totalling 614.0 mts. core drilling a reserve of 23 million tonnes upto 30 mts. depth containing 46% CaO, 1.75 to 2.24% MgO has been assessed by the Department,. Small bands of dolomitic limestone have been reported near Rasampura, Choja-ki-Nangal, Bhopja, Kalyanpura, Kinharu villages of Neem-Ka-Thana tehsil. It is pink and grey in colour, fine to medium grained and can be used as ornamental and flooring stone. The lime stone of Raghoji ki-Dhani and Kud ki-Dhani is being used for limestone burning. Length of the limestone band varies from 200 to 1000 mts. & width 50 to 200 mts. Marble Marble (dolomitic limestone) bands occur at places near Kotri, Kerpura, Karoi, Kotriluharwas etc. villages in SriMadhopur tehsil and Rajampura Kalyanpura etc. areas in Neem ka Thana tehsil. These are white, Pink to grey in colour, fine to medium grained. Department has carried out investingations in SriMadhopur tehsiI and delineated thirty plots in govt. land. These plots were notified for leasing in1995. At present there are 55 leases of marble in the district. . Granite A number of outcrops have been reported.Important places are Dabla, Jeetala, Kharbipura Ajitgarh, Sirohi, Saladipura and Chapoli. The granite occur as high hillocks and in the form of isolated boundary outcrops. The colour is mostly light earthy to pinkish with red garnet spots. It is mostly medium to coarse grained forming an overall granular texture. Some .famous varieties are Ajitgarh Grey & Ajitgarh White. Department has demarcated the blo,ckable granite areas & notified them as under. Location No.of Plots Ladi-ka-Bas 402 Kala Khera 225 Jugalpura 51 Dabla 186 Biharipura 201 Jetpura 111 The details are available with Directorate of Mines & Geology ,Udaipur, Suptd. Geologist Granite Jaipur and ME Neem-ka- Thana. MINERAL BASED INDUSTRIES AND FUTURE SCOPE Mineral based industries established in Sikar district are listed below: Cement plants:- The district has vast resources of cement grade lime stone and more than sixteen mini cement plants are located at Jilo-Maonda, Khandela Daulatpura, Sikar, Sri Madhopur, Laxmangarh etc. having a capacity of 6,000 to 60,000 TPA. Others:- There are two units manufacuring cement products like flower pots, cement screens etc. Several mineral grinding units are established near Neem -ka- Thana and Maonda . One washery of clay also exists in the district. A number of lime burning kilns are working. During last 3-4 years 43 granite & marble cutting and polishing units have been set-up . There is further scope of setting up of such industries. Stone crushing industries are also being set-up. MINERAL ADMINISTRATION The state department of Mines & Geology has an office of Mining Engineer at Neem- Ka -Thana which looks ofter the mineral administration work in Sikar and Jhunjunu districts. The geological prospecting work is looked after by Superintending Geologist and Senior Geolgist, Jaipur. During the year 1997-98. Work in three areas has been proposed in Sikar district. 1. Search for noble metals & base metals around Bamuara, Salwari villages, tehsil Sri Madhopur, distt. Sikar. 2. Evaluation of marble deposits in Sikar,Jhunjunu & Jaipur districts. 3. Regional geological studies to select out suitable areas for marble delineation in Neem-KaThana tehsil, dis trict Sikar & Khetri tehsil district Jhunjunu. SATISTICAL INFORMATION OF SIKER DISTRICT FOR 1995-06 . Mineral No. of Leases Revenue Production Sale Value (Thousand (thousand tones) (thousand Rs. Rs.) I Major Minerals 1. Lime Stone 4 221.99 155.39 3417.21 2. Iron Ore 3 3.75 225.00 24.22 3. Barytes 1 - - 4.27 4. Dolomite 4 3.19 319.00 124.42 5. Calcite 7 1.35 202.00 132.82 6. Quartz 22 5.29 634.00 406.65 7. Feldspar 4 3.06 382.00 84.84' 8. Pyrite 1 - - 30.00 9. Other - - - 79.74 10. Brick Earth 11 104.84 11. Masonary stone 32 20.68 12. Limestone (Burning) 3 138.00 13. Kankar Bajri (STP) - 3.46 II Minor Minerals 4259.40 841.20 80.90 2771.25 12420.00 3705.98 13.84 4843.669 14. Granite 15. Marble (Block/ Khanda) 16. Quartzite & Others 4 - - 92.61 55 15.34/3.83 2454/306 3379.44 2 - - 1115.04 Unpublished Geological Reports of Sikar District (A) Department of Mines & Geology, Udaipur. Author Srivastava, S.B.L. 1957-58 Srivastava, S.B.L., 1957-58 Srivastava, S.B.L., 1958-59 Srivastava, S.B.L., 1957-57 Kulshrestha, N.P., 1957-58 Joshi, KC., 1951-52 Srivastava, S.B.L., 1960-61 Srivastava, S.B.L., 1963-64 Srivastava, S.B.L. and Surana, R.L.,1953-54 Dwivedi, C.S. Patel, M.S., 1961 Title Preliminary examination of limestone deposit of Maonda area Preliminary report on limestone deposit of Patan and Barwa area. A report on mineral survey of limestone and other minerals in Patan area. A note on clay and pegmatites in Buchara and Kotri area. A note on the prospecting for lead ore in Saladipura area. Geology and mineral resources around Chowkri area. A report on the investigation for limestone at Maonda. A peliminary report on fluorite prospecting in ChowkriChhapoli 'area. A note on the investigation of fluorite deposit in Chowkri-Chhapoli area. Investigation report for iron ore at Toda- Chiplota and Dipas area.A report on possibility of location of 40,000 tonnes per year portland cement plant in the Neem-kaThana, Maondaand Patan area. Srivastava, S.B.L. and Surana, R.L., 1965-66 A report on the investigation of fluorite deposite at ChowkriChhapoli area. Luhadia, KC., 1967-68 Srivastava, S.B.L., 1968-69 Geological report of Calcite deposit near Raipur. A report on the investigation of apatite deposit in Kerpura- Salwa area. Agwani, M.D., 1968-69 Bhargava, M.K, 1990 Gupta, L.P., 1992-93 A report on the reconnaissance for phosphate near village Deogarh. Note on work carried out for Bismuth near village Narda. Geological apprasal for economic minerals like crystal quartz, iron ore, garnet etc., near village Raipur and Devipura,tehsil Shahpura, district Jaipur and part of tehsil Neem-ka-Thana, district Sikar. Dodiya, S.N., 1993-94 Preliminary mineral prospecting for economic minerals near village Rampura, Karoi and Kairpura. Srivastava, SoB.L., 1960-61 Govind Singh, 1961-62 Srivastava, S.B.L., 1957-58 A report on the limestone investigation at Patan. Investigation for limestone at Patan. Preliminary report on the calcite and limestone investigation at Raipur. Keshwani, KB.& Bhargava, M.K, 1956 M.E.C., 1979-80 Investigation for limestone in Patan area. Geological mapping for limestone deposit near village Jillo and Maonda, tehsil Neem-ka- Thana (lease hold area of Best Chemical limestone Ind. Pvt.Ltd.) Keshwani, KB. & Swami, S.K, 1985 Keshwani, KB. & Swami, S.K,1986-87 Bhargava, S.c., Swami, S.K and Keshwani, KB., 1987-88 Reconnaissance for economic minerals in Bai, DantaRamgarh,Samer, Harsh and Rawasa area. Reconnaissance for marble, limestone rock phosphate near oda-ki-Dhani village, tehsils Kotputli and Neem-ka-Thana. A report on investigation for decorative stone such as granite and other rocks around Ajitgarh, Pithalpura and Hathora, tehsil Srimadhopur. (B) Geological Survey of India & Others. Saunwal, R.S., 1983-85 Report on base metals investigation in Narai area. Kumar, V., 1985-86 Integrated remote sensings of mineralised zones in parts of Khetri area. Negi, RS., 1976-77 Basu, J.K, 1975-76 Areport on the basemetal investigation in Narai area. Quaternary gelogy and geomorphology of Ajitgarh- Shapura area, Sikar and Jaipur districts, with special reference to sand mobility. Geological and geomorphological evaluation and enviormental appraisal in Ratangarh area, Churu and Sikar district.. Report on the systematic quaternary geological mapping in the area around Lachhmangarh Gudha, Gaurji, Sikar and Khandela, Sikar and Jhunijhunu districts. Basu, J.K, 1981-82 Ghosh, S.P. and Dassarma, D.C.,1983-84 Grover, A.K ,1986-87 Integrated remote sensing studies of Northern part of Khetri copper belt and adjoining areas, Jhunjhunu and Sikar districts Rai, RP. & et.al., 1982-83 Report on the geophysical investigation for the base metal in Narai area. Structural, stratigraphy and sulphide mineralisation of south Khetri copper belt, Jhunjhunu and Sikar districts. Geomorphological studies of factors controlling oxidation of sulphide mineralisation in the sourthern extention of the Khetri Copper belt Sikar & Jhunjhunu districts. Gathania, R.c. & etal 1983-87 Dassarma, D.C.,1984-86 Gupta, D. J. Das, 1986-88 Mishra, S.P. and Agrawal, V:K, 1966-67 Mishra, S.P., 1968-69 Basu, J.K,1976-77 Rasik Ravindra& Reddy, U.SN.,1975-76 Das, A.R and Jain, RK, 1975-76 P.P.c. Ltd. Joshi, H.C., 1964-65 Jain, S.S., 1986-88 Report on investigation for phosphorite in Ajabgarh group of rocks in North-Eastern Rajasthan. A note on search for base metals in parts of Sikar &,Nagaur districts A report on investigation of Dariba Gossan zone. Report on geomorphology and quaternary geology of BairathPawata-Kotputti area; Sikar, Jaipur and Alwar districts with special stud: on sand movement. Geology of Khorandi, Mendha- Surera and marot area of Sikar and Nagaur districts. Report on the systematic Geological mapping in Pawata, Ajitgarh and Shahpura area, Sikar & Jaipur districts. Project report for exploratory cum production mining, Saladipurc Report on the Geophysical investigation for sulphide ores in the Saladipura and Seoli areas. Report on investigation for search of Sn-W mineralisation in Malani Igneous suite and post Delhi granitoids of NorthEastern Rajasthan. Muktinath & etal, 1970 Ore reserves estimates in block Band C, Saladipura area. Ray, S.K., 1969-70 Tectonic history and controls of sulphide miner- alisation at Saladipura Seoli mineralised zone, Khetri copper belt. Priliminary feasibility study for the Saladipura project. (Vol. (Vol. 1 and 2) Report on Geophysical investigations for uraniummolybdenum and associated Basemetals in the Ghateswar area near Khandela. Geological studies of the rare earth-bearing pegmatites and the associated feldspar and clay occurrenes in the Buchara area, Sikar & Jaipur districts. Report on the geophysical investigations for basemetals in Ahirwala and Tejwala areas. R.T.Z., London Sarkar, B. & etal, 1973-74 Bose, U. ,1976-77 Sarkar, B. and Chakraborty, S., 1975-76 Chattopadhyay, S., 1976-77 Mathur, A.L., 1973-74 A.C.C. Gupta, S.N., 1963-64 Pahuja, R.P.S. & Ramalingham, G. 1976-77 Report on the studies of the post Delhi granitic intrusives in the Khetri copper belt with special reference to sulphide mineralisation Report on reappraisal of Coper Mineralisation in mothoka area. Report on the proving operations carried out in Neemka- Thana limestone deposits. Preliminary investigation of the iron ore deposits near Bagoli-Sarai, Gaonli, Naidhani, Piao-ki- Khan, NardaNanowas and Papra villages. Report on the systematic geological mapping of area betwen Fatehpur, Salasar and Mitri; Churu, Nagaur & Sikar districts. Gangopadhyay, S., 1974-75 . Report on the investigation for Molybdenum- Uranium and associated minerals in the Ghateswar and Khandela areas CALCITE IN RAJASTHAN INTRODUCTION Calcite, also known as "Calc Spar" is a mineral which is chemically calcium carbonoate (CaCO3) containing 56% CaO and 44% CO2. However sometimes iron stains may be present which may effect its purity. Calcite occurs in typical rhombohedral form, in veins traversing various types of rocks particularly limestones. It rarely accurs as a primary constituent of igneous rocks but is common as an alteration or infiltration product, and is the dominent component of the limestones and their metamorphic derivatives , the marbles. It is extensively used in many industries like rubber, ceramic, paper, glass, paints and chemicals. Transparent variety is used in optical instruments. VARIETIES Calcite occurs in differnt varieties depending upon shape of crystals, transparency and mode of formation, some of them are Nail-head spar, Dogtooth spar, iceland spar( pure transparent), Satin spar (fibrous variety), Aphrite and Argentine (lamellar variety), Stalactites (Pendant columns), Stalagmite, Oriental Alabaster, Algerian Onyx, Calcareous Tufa, Travertine, Calc Tufa, Agaric mineral, Rock Milk, Rock Meal, Chalk, Limestone, Marble, Lithographic stone, Pisolite, Oolite, Anthrawhite or Stink stone, Fontainbleau sandstone, Thinolite. In India, calcite is found in the states of Andhra Pradesh (Anantapur, Mahabubnagar); Gujarat (Amreli, Broach, Gohilwad, Halar, Kutch, Panch Mahals): Madhya Pradesh (Nimar) Tamilnadu ( Salem, Tiruchirapalli); Maharashtra (wardha); Hariyana (Mohindergarh), Uttar Pradesh (Mirzapur), Rajasthan( Ajmer, Jaipur , Pali, Sikar, Udaipur, Rajsamand). The total reservs of calcite in India are estimated at 10573 thousand tonns. In 1994 India exported calcite to UAE, Tanzania & Mauritius. OCCURRENCE IN RAJASTHAN Rajasthan is the leading producer of calcite in thecountry. There are 31 mining leases for calcite in the state and about 7589 tonnes was produced during the year 1995-96. The description of the deposits in Rajasthan is given below: Sikar District (1) Maonda deposit : The mineral occurs in steeply dipping veins near maonda village about 7 km. from railway station. The veins are about 0.75 mt. to 1 mt. in thickness and are seen criss-crossing limestone and microgranites. It is quarried in small pits. Two important quarries viz. the Bhilkajiwali and Bada Khet in this locality have given good production. (2) Raipur deposit : It is about 10 kms. from the Dabla railway station on the Rewari Phulera Chord line. It occurs in the form of pockets and veins in metamorphosed impure limestone. Department of Mines and Geology has carried out detailed prospecting work in this area by putting 25 trenches and 39300 tonnes of calcite reserves have been assessed. Ajmer District In Ajmer district economic & commercially exploitable calcite deposits occur at few places and these too are lean deposits. (1 ) Siliberi - Garad ka Baria deposit : About 0.25 km. SW of Garad ki Baria village a calcite vein nearly 1/2 mts. thick occurs in calc-schist of Ajabgarh formation. (2) Mundoli deposit : About 1 Km. SW of Mundoli village a calcite vein nearly 0.5 to 0.8 mt. thick has been reported in granite gneisses. Other localities from where calcite is being mined out in little quantities are Bassi, Karla, ,Lachhipura, Kundal, Kansia & Pisangan. Sirohi District Calcite occurs as large crystals in the form of veins, pockets and lenses in calc-silicate rocks, impure lime stone and calc-schist of Ajabgarh group of Delhi Super group. A good deposit of calcite is located in Khila and Khera, about 35 km. north. east of Pindwara . which is being worked out by m/ s. Wolkem India. Ltd. . Other small deposits are located near Rajpura, Tankiya, Siyawa, Kheterla, Bainsa Singh, Sanwara and Serwa-Perwa areas. Several minor occurrences of calcite veins have been reported from Bhula, Sanwara, Tankuya, Moras etc. The details of important deposits are as under : (1) Khila (Belka Pahar) deposit : The deposit is located at a distance of 32 km. from Sirohi Road Railway station on the Ahmedabad -Ajmer section of the western Railway. Pindwara town is located at a distance of 30 km. from the mine.Calcite is well exposed in almost all the mine working in the area. It generally occurs as oval to crescent shaped cappings overlying the wollastonite hill . Calcite is snow-white to white, off to brown and pale white in colur. It is crystalline in nature with rhombic shape. It is invariably associated with skarn, cavities filled with mud and decomposed lime stone patches. On the basis of work comprising 644.05 mts. drilling. 8,78,330.8 Tonnes of Calcite have been proved. (2) Khera deposit: The area is located at a distance of 36 km. from Sirohi road. Sirohi Road is the nearest railway station on Ahmedabad-Ajmer-Delhi section of western railway. The lithological formations encountered in the area are basic rocks, granites, pegmatites quartz veins, cherty rocks & the skarn with or without wollastonite and isolated lenses of calcite. Calcite occurs as lensoid pockets with in skarn rocks and marble. It is white to off white in colour, crystalline showing good cleavage. It occurs generally close to quartz or pegmatite vein. On the basis of surface geological mapping and preliminary exploration six such calcite pockets have been demarcated and 8,618 tonnes of probable reserves have been assessed. Pali District Calcite occurrences are located at Bara Guda, Budha Lelwa, Kalhab, Kapil ki Bhagal, Pitlan Nana, Khemel Alipur, Khoral Patan, Dayalpura falling in Raipw Jaitaran tehsil. A number of small pockets are being worked. Rajsamand District In Rajsamand, calcite occurs near Bera ki Bagal of Kumbhalgarh tehsil. The production is meagre. Banswara District Small occurrences of Calcite have been located near Serbilas. Abdulapir, Delwara, Ghatol Kherwa etc. Jhunjhunu District A small occurrence of calcite is reported from Paparna area of Khetri tehsil. Jaipur District In Jaipur calcite occurs in Barna-ki-Chowki and Sakhoon. (1) Barna-Ki-Chowki deposit : The mineral occurs here as veins in association with ilmenite. It is inferior in quality and deposit appear to have almost pinched out. (2) Sakhoon deposit : Close to the Sakhoon railway station on the Phulera Ajmer Section a small calcite deposit was located. The mineral however, is not of a very high quality and mining has since been discontinued. Udaipur District The occurrences of calcite are reported from Sayara, Sadarla, Gogunda Goital, Padrada, Jadol, Dhinkali and Rabachh. The important localities are described below: (1) Rabachh deposit: The area is situated near village Rabachh in Gogunda tehsil . It is located about' 73 km. from Udaipur.The area contains a rich deposit of calcite, The occurre of calcite are found in the form of thin to moderatly thick veins of veriable length and thickness and in mixed zone where the calcite is found associated with decomposed limestone; Four veins of calcite exposed and five mixed zones of calcite are seen in the area. It is white in colour flaky as well as crystalline brittle in nature. On the basis of investigation 4,03 795 tonnes of calcite reserves have been calculated.