1. Is Ice a Mineral? O Minerals have a fixed crystal structure O Minerals have a definite chemical composition O Minerals are naturally occurring O Minerals are inorganic (they have never been living)

2. Mineral Groups Identifying Minerals Based on their Atomic Structure

3. Silicates O Make up 90% of Earth’s Crust O Largest mineral group O Silicon + Oxygen O Si + O O -SiO 4

4. Common Silicates

9. Native Elements O Not combined with other elements

10. Common Native Elements

13. Carbonate Group O Carbon + Oxygen O -CO 3

14. Carbonate Group Properties O Transparent O White streak O Perfect Cleavage O React with acid

15. Common Carbonates

17. Sulfate Group O Contain the Element Sulfur O S Group Property Vitreous

18. Common Sulfates

20. Halide Group O Contain a Halogen atom such as: -F -Cl -I -Br

21. Common Halides

22. Oxide Group O Contain an Oxide bonded with a metal O Metal + O 2-

23. Common Oxides

25. Phosphate Group O Contain a Phosphate Anion O (PO 4 3- )

26. Common Phosphates