Yellow Calcite
Calcium Carbonate (CaCO3)
Category
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
Yellow Calcite
Calcium Carbonate (CaCO3)
Gneiss
Gneiss (High-grade metamorphic rock)
Tumbled Hematite
Iron(III) oxide (Fe2O3)
Pyrite
Iron Disulfide (FeS2)
White Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pyrite Cube in Matrix
Iron Sulfide (FeS2)
Carnelian Agate
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz (or Chalcedony) Specimen
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Green Calcite
Calcium Carbonate (CaCO3)
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Quartz (Smoky/Rock Crystal)
Silicon Dioxide (SiO2)
Hematite
Iron (III) Oxide (Fe2O3)
Quartz (Clear/Crystalline)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
Pyrite
Iron Sulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Pyrite in Quartzite/Graphite Matrix
Iron Sulfide (FeS2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)