Mineral

Columns: Mohs hardness | Mineral | Chemical formula
1 | Talc | Mg 3 Si 4 O 10 ( OH ) 2 | 2 | Gypsum | CaSO 4 ·2H 2 O | 3 | Calcite | CaCO 3 | 4 | Fluorite | CaF 2 | 5 | Apatite | Ca 5 ( PO 4 ) 3 ( OH , Cl , F ) | 6 | Orthoclase | KAlSi 3 O 8 | 7 | Quartz | SiO 2 | 8 | Topaz | Al 2 SiO 4 ( OH , F ) 2 | 9 | Corundum | Al 2 O 3 | 10 | Diamond | C

Example questions:
What atoms are present in the mineral with the chemical formula of SiO2 ? | What is the value of the mineral with the chemical formula of CaCO3 on the Mohs scale ? | What agricultural use does the mineral with the chemical formula of CaSO4·2H2O provide ? | What is the meaning of Greek name of the mineral with the chemical formula of KAlSi3O8 ? | What are the two primary gem varieties of the mineral with the chemical formula of Al2O3 ?

Answers:
silicon and oxygen | 3 | fertilizer | straight fracture | ruby and sapphire