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Minerals. Native Elements. Carbon. Sulfur. Silver. Gold. Silicates. Tourmaline NaMg 3 Cr 6 Si 6 O 18 (BO 3 ) 3 (OH) 4. Olivine (Mg , Fe) 2 SiO 4. Feldspar KAlSi 3 O 8. Quartz SiO 2. Mica KAl 2 (AlSi 3 O 10 )(F,OH) 2. Carbonates. Calcite (CaCO 3 ). Azurite ( Cu 3 (CO 3 ) 2 ).
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Native Elements Carbon Sulfur Silver Gold
Silicates Tourmaline NaMg3Cr6Si6O18(BO3)3(OH)4 Olivine (Mg, Fe)2SiO4 Feldspar KAlSi3O8 Quartz SiO2 Mica KAl2(AlSi3O10)(F,OH)2
Carbonates Calcite (CaCO3) Azurite (Cu3(CO3)2) Rhodochrosite(MnCO3) Cerussite (PbCO3)
Sulfates Barite BaSO4 Copper (II) Sulfate CuSO4 Calcium Sulfate CaSO4
Oxides Cassiterite SnO Titanium Oxide TiO Iron Oxide FeO
Halides • Halide = • Metal + Halogen • (F, Cl, Br, I) NaCl
Sulfides Galena PbS Pyrite FeS2