C1: Native Elements and Alloys

C2: Sulfides and Sulfosalts

C3: Halides

C4: Oxides and Hydroxides

C5: Carbonates and Borates

C6: Sulfates, Chromates, Molybdates and Tungstates

C7: Phosphates, Vanadates and Arsenates

C8: Silicates

C8: Silicates / Inosilicates

C8: Silicates / Tectosilicates

C8: Silicates / Phyllosilicates

C8: Silicates / Sorosilicates

C8: SILICATES, Nesosilicates

C8: Silicates / Cyclosilicates

C9: Organic

Liddicoatites from Madagascar