Sedimentary And Metamorphic

Banded Gneiss

Gneiss (Metamorphic Rock)

Foliated Metamorphic Rock (likely Gneiss or Schist)

Gneissic Metamorphic Rock

Muscovite

KAl2(AlSi3O10)(OH)2

Ruby in Kyanite

Corundum in Disthene (Al2SiO5 + Al2O3)

Kyanite

Kyanite (Al2SiO5)

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Quartz

Silicon Dioxide (SiO2)

Quartz Crystal

Silicon Dioxide (SiO2)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Agate

Silicon Dioxide (Chalcedony), SiO2

White Quartz

Silicon Dioxide (SiO2)

Smoky Quartz / Chalcedony

Silicon Dioxide (SiO2)

White Quartz Beads

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz pebble

SiO2

Tumbled Clear Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz (Pink/Rose Quartz or Quartz Crystal)

Silicon Dioxide (SiO2)

White Quartz

Silicon Dioxide (SiO2)

Iceland Spar (Optical Calcite)

Calcite (CaCO3)

Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz

Silicon dioxide (SiO2)

Calcite

Calcium Carbonate (CaCO3)

Pyrite

Iron Disulfide (FeS2)

Optical Calcite

Calcium Carbonate (CaCO3)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Mixed Mineral Collection

Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)

Milky Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Quartz (Milky/Crystalline fragment)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartzite

Metamorphic Rock consisting chiefly of Quartz (SiO2)

Gneiss

Metamorphic Gneiss

Garnet Gneiss

Garnetiferous quartzo-feldspathic gneiss

Muscovite Schist with Quartz

Mica Schist (KAl2(AlSi3O10)(OH)2)

Kyanite

Kyanite (Al2SiO5)