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Do You Remember?. What element is this?. How many P, N, & E?. 29 63.5. C. What do we call these types of atoms?. What type of bond?. What type of bond?. What type of bond?. Hint: these are water molecules). What type of bond?. What do these have in common?. Big Bang
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How many P, N, & E? 29 63.5 C
What type of bond? Hint: these are water molecules)
What do these have in common? • Big Bang • Fusion in stars • Supernovas
Which list makes up 90+% WHOLE earth? Iron 35-40% Oxygen 25-30 % Silicon 13-15% Magnesium 10% Oxygen 47% Silicon 28 % Aluminum 8% Iron 5% How do you know?
4 Characteristics of ALL Minerals 1. 2. 3. 4.
Mineral Families You can tell which family a mineral belongs to by looking at its formula. There are 9 families to learn:
Native elements • Minerals that are from 1 element • Gold: Au • Copper: Cu • Silver: Ag • Carbon: C • Sulfur: S
2. Halides • Halogen Group. • Halite: NaCl – salt, rock salt • Fluorite: CaF2
3. Oxides • Minerals with oxygen • Ice H20 • Corundum Al2O3 • Hematite (Fe2O3) • Magnetite (Fe3O4),
4. Sulfides • Minerals with sulfur; rotten egg smell • Galena (PbS for lead used in pipes and bullets), • Chalcopyrite (CuFeS2, copper & iron ore AKA fool’s gold) • Pyrrhotite (Fe4S) • Pyrite – Iron ore – cars, steel buildings (FeS2) • Sphalorite - ZnS • Bornite – Cu5FeS4 copper ore – pipes, wire
5. Carbonates • Minerals with Carbonate (C03) • Calcite – (CaCO3), – very abundant • Dolomite – (CaMg(CO3)2) lime • Azurite - Cu3(CO3)2 • Malachite – Cu2(CO3)( copper ore and ornamental
6. Sulfates • Minerals with Sulfate S04 • gypsum (CaSO4 · 2H2O), – plaster of Paris, wall board • barite (BaSO4)
7. Hydroxides • Minerals with a metal plus hydroxide (OH-) • limonite (iron hydroxide) Fe40i(OH)2 • bauxite (aluminum hydroxide) Al(OH)3
8. Phosphates • Minerals with a metal plus phosphate (PO4) • Apatite - Ca5(PO4)3F
9. Silicates • Minerals with silicate tetrahedron SiO4 • 90% of rock forming minerals • Not ores • Examples: Quartz (most common mineral) Opal, talc, mica, hornblende, topaz, feldspar,olivine Look for Si O in formulas KAlSi3O8, Al2SiO4, SiO2*H2O