2. MINERALS!
Minerals can be divided into two groups,
Silicate minerals and non-silicate minerals.
3. SILICATE MINERALS
• Contains oxygen and silicon
• Feldspar-main component of most rocks on the earths surface
• Quartz-second main component in the Earth’s continental crust.
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Silicate
Minerals
Non-
silicate
Minerals
4. NON-SILICATE MINERALS
Native elements -- Copper, Cu, Gold, Au, Silver, Ag.
-- Used in communication and electronic equipment.
Occurred in nature in uncombined form .