inorganic crystalline Elements 92 solid nonliving crystalline chemical composition nature atom Minerals compounds two or more elements native element crystals arrangement of the atoms crystalline chemical Earth’s crust silicate 90 6 1. Native elements copper, gold, and silver COPPER GOLD SILVER 2. Carbonates Calcite 3. Halides Fluorite 4. Oxides Corundum 5. Sulfates 6. Sulfides variety of colors reflects light shiny dull metallic submetallic nonmetallic powdered form streak plate streak breaks smooth, flat surfaces break unevenly scratched Mohs higher matter mass specific gravity volume ultraviolet iron weak acid salty double image. Geiger Earth’s crust ore surface subsurface coal mines, and quarries open pits, surface gold and copper. mines Quarries strip too deep passageways habitats original state reclamation 1970s A Reclaimed mine site, one of my favorite reclaimed mine sites. This is a former Limestome Quarry, located in central Florida. It was reclaimed as a Golf Course, with a slope of 131 and is so difficult to play it is truly great, if your shots are VERY accurate. As you can see, even the fairways slope in every direction, and the Rough, well they rate a 10. Reclamation of a mine site in progress, note the silt fences (rows of material that look like a fence). These are to prevent any solid particulates from the disturbed soil from entering the water through runoff from rainfall. Modern mining companies take every precuation to ensure the preservation of the natural resources of the community in which they reside and operate heat electricity rust electricity beauty Color polishing carat