Unit 4 Minerals
View GEODe slides titled: Part II Earth Materials: Minerals, Major Mineral Groups.
Slide 21. How many minerals have been identified? ___________________________
Slide 23. The most common group of minerals is called the ____________________
Slide 24. and they are composed of a ____________-____________ _____________
Draw an diagram of the structure
(page 100 in the text)
Slide 25. What is an ION? _____________________________________________
Slide 25. What is the charge on a SiO4 molecule? _____________________
Slide 28. Tetrahedra can link by sharing ______________________ atoms.
The tetrahedral can be individual or they can form Slide 31. _____________________
Slide 32. _____________________
Slide 33. _____________________ mineral # 23
Slide 34. _____________________ mineral #7
Slide 42. They can form many other minerals by combining with elements such as
________+ or ________+
or _________+ or _________+ or ________+
Slide 45. The different silicon-oxygen tetrahedron structures of the different mineral
determine how it will _______________________ or split.
Slide 46. Weak bonds between Mica’s sheets allow it to split into _____________
Slide 47. ___________ have sheet structure so it cleaves into flat planes #23
Slide 48. Quartz has strong bonds so it doesn’t cleave but it ___________________#7
Silicates can be grouped at either __________________ or ________________
#24, 26
#7, 23
Slide 50. Due to the presence of ions of _____________(Fe) or magnesium.
Slide 51. Iron content makes silicates that are _____________ in color.
Mineral Group Name
Chemical Formula
Characteristics
And Examples
Unit 4 Mineral Groups
Use a highlighter to highlight the element or ion in each chemical formula that defines the mineral into the group.
Mineral group
Silicates
Name
Chemical formula
Use
Quartz
SiO2
Glass , Abrasives
Precision instruments,
Feldspar
KAlSi3O8
Olivine
Topaz
(Mg, Fe)2SiO4
ZrSiO4
Al2SiO4(FOH)2
Electrical insulator, Ceramic glazes
Dental products, Opalescent glass
Used in detergents
Basic refractors
Beryl
Be3Al2Si6O18
Emeralds, Nuclear industry
Fluorescent Lamps
Mica
KAl2AlSi3O10(OH)2
Electrical and heat insulation
Fireproof paint, Porcelain products
Talc
Mg3Si4O10(OH)2
Textile, Cosmetics, Paint industries
Zircon
NON-Silicate Mineral Groups
A metal + oxygen
A metal + sulfur
On the Periodic Table of
Elements
Jewelry
Jewelry
Clear or finely colored used as gems
Practice
Mineral
1. CaCO
Group
3
2. Cu O
2
3. FeCO
3
4. Al O
2
3
5. SiO
2
6. PbS
7. Fe2O
3
8. (Mg) SiO
2
9. CaSO
4
4
10. BaSO
4
11. CaMg(CO )
3 2
12. Fe O
3
4
Specific gravity
High or low
IF a silicate,
Ferromagnesian or
Non-ferromagnesian