Yellow Calcite
Calcium Carbonate (CaCO3)
Category
Browse sedimentary and igneous specimens identified by the Rock Identifier community.
Yellow Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Yellow Chalcedony (common opal or chert variant)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Chalcedony (Agate/Carnelian variant)
Cryptocrystalline Silica (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Magnetite (Lodestone)
Magnetite (Fe3O4)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Native Gold
Native Gold (Au)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
Schist
Chlorite/Mica Schist
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Red Garnet
Almandine Garnet (Fe3Al2(SiO4)3)
Chalcedony (Grey/White Agate)
Silicon Dioxide (SiO₂)
Granitic Gneiss
Gneiss (containing Potassium Feldspar and Quartz)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Pink Thulite
Thulite (Ca2Al3(SiO4)3(OH)) - Pink Zoisite
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
Heliotrope (Bloodstone)
Cryptocrystalline Quartz (SiO2) with inclusions of Hematite (Fe2O3)
Gneiss
Gneiss
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Gneiss
Foliated Metamorphic Rock
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Optical Calcite
Calcium Carbonate (CaCO3)
Fluorite
Calcium Fluoride (CaF2)
Quartz (Milky/Crystalline)
Quartz (Silicon Dioxide, SiO2)
Gold Nugget
Native Gold (Au)
White Quartz
Silicon Dioxide (SiO2)