Orange Calcite
Calcium Carbonate (CaCO3)
Category
Browse sedimentary and metamorphic specimens identified by the Rock Identifier community.
Orange Calcite
Calcium Carbonate (CaCO3)
Multi-gemstone Quartz and Fluorite Bracelet
Silicon Dioxide (SiO2) and Calcium Fluoride (CaF2)
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
Gold
Native Gold (Au)
Quartz
Silicon Dioxide (SiO₂)
Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Silicon Dioxide (SiO2)
Turquoise and Hematite
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)
Milky Quartz (or Vein Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO₂)
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Pyrite (Iron Pyrite)
Iron Sulfide (FeS2)
Rough Emerald (Beryl)
Emerald (Be3Al2(SiO3)6 with Cr/V impurities)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or Rough Quartz)
Silicon Dioxide (SiO2)
Dyed Agate
Chalcedony (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Garnet (Almandine variety)
Almandine, Fe3Al2(SiO4)3
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded iron formation (iron-rich metamorphic rock)
Banded iron formation (BIF), chiefly hematite/magnetite with chert or quartz (Fe₂O₃/Fe₃O₄ and SiO₂)
Milky Quartz (Druzy Geode fragment)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Quartzite
Quartzite (primarily SiO2)
Gneiss (specifically a Granitic Gneiss)
Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)
Gneiss Pebble
Gneiss
Quartz Pebble
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Petrified Wood
Silicified Wood (SiO2)
Tumbled milky quartz pebble
Quartz, silicon dioxide (SiO₂), microcrystalline to coarsely crystalline variety
Quartz Pebble
Silicon Dioxide (SiO2)
Hematite
Hematite (Fe2O3)