Metamorphic Or Igneous (Context Dependent)

Black Diamond / Black Sapphire

Carbon (C) or Corundum (Al2O3)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Pyrope Garnet

Magnesium aluminum silicate (Mg3Al2Si3O12)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Garnet

Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Greasy Quartz (likely carved Milky Quartz or Aventurine)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Chrysocolla (on host rock)

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)

Citrine

Silicon dioxide (SiO2)

Quartz (Milky or Grainy Variety)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky or Clear variety)

Silicon Dioxide (SiO2)

White Quartz

Silicon Dioxide (SiO2)

Sand (Construction Grade)

Unconsolidated siliciclastic sediment (primarily SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Green Aventurine

SiO2 (Quartz with Fuchsite inclusions)

Clear Quartz

Silicon Dioxide (SiO2)

Calcite

Calcium Carbonate (CaCO3)

Smoky Quartz

Silicon Dioxide (SiO2)

Citrine

Silicon Dioxide (SiO2) with iron impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz (possibly Citrine or Smoky Quartz variety)

Silicon Dioxide (SiO2)

Hematite

Iron(III) oxide (Fe2O3)

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Bornite

Bornite (Cu5FeS4)

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Sunstone

Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

Quartz (Milky to Clear)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (specifically Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)