Metamorphic Or Sedimentary (With Staining)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Red Sandstone

Arenite (primarily Quartz SiO₂ with Hematite Fe₂O₃ staining)

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Marble

Recrystallized Calcite (CaCO3)

Chalcedony (Agate/Jasper mix in host rock)

Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)

Limestone (with Iron-Oxide staining)

Sedimentary Calcium Carbonate (CaCO3)

Phyllite

Phyllite

Blue Kyanite

Kyanite (Al2SiO5)

Magnetite / Iron Ore

Magnetite (Fe3O4)

Kyanite (Green and Blue varieties)

Kyanite (Al2SiO5)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Ruby in Kyanite

Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)

Marble (White)

Metamorphosed Limestone (mainly CaCO3)

Magnetite Orthorthotropic Rock

Magnetite (Fe3O4)

Oolitic Limestone

Oolitic Limestone (CaCO3)

Quartz

Silicon Dioxide (SiO2)

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2) matrix

Muscovite Schist with Quartz

KAl2(AlSi3O10)(OH)2 in Schistose matrix

Quartz

Quartz (SiO₂ - Silicon Dioxide)

Golden Quartz (Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Tiger's Iron

Pseudomorphic Quartz Aggregate (contains SiO2 with Fe2O3 and FeOOH)

Shale

Shale (comprised mostly of clay minerals and quartz)

Quartz (Smoky/Grey variety)

Silicon Dioxide (SiO2)

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon dioxide (SiO2)

Hematite Nodule

Hematite (Fe2O3)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Bornite

Bornite (Cu5FeS4)

Unidentifiable Rock Fragment

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Calcite

Calcite (Calcium Carbonate, CaCO3)

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Pyrite in Matrix (Fool's Gold)

Iron Disulfide (FeS2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F