Mineral Classes

Minerals are grouped into classes based on their dominant anion or anionic group. The classification below follows the Dana/Strunz system.

Class Dominant anion / group Examples
Silicates SiO₄⁴⁻ Quartz, feldspar, mica
Sulfides S²⁻ Pyrite, galena, sphalerite
Carbonates CO₃²⁻ Calcite, malachite, dolomite
Oxides O²⁻ Hematite, corundum, magnetite
Sulfates SO₄²⁻ Gypsum, barite, celestine
Halides Cl⁻, F⁻ Halite, fluorite
Phosphates PO₄³⁻ Apatite, turquoise
Native elements Gold, silver, copper, sulfur
Hydroxides OH⁻ Goethite, gibbsite
Borates BO₃³⁻ Borax, ulexite

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