Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
Category
Browse mineral (impactite) specimens identified by the Rock Identifier community.
Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
Green Kyanite
Kyanite (Al2SiO5)
Blue Calcite
Calcium Carbonate (CaCO3)
Smoky Quartz
Silicon Dioxide (SiO2)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Peridot
Olivine ((Mg, Fe)2SiO4)
Ferruginous Quartz
Iron-stained Quartz (Silicon Dioxide + Fe2O3 / FeO(OH))
Citrine
Silicon Dioxide (SiO2) with ferric iron impurities
Garnet (likely Almandine)
Almandine - Fe3Al2(SiO4)3
Smoky Quartz
Silicon Dioxide (SiO2)
Iceland Spar (Optical Calcite)
Calcite (CaCO3)
Beryl (Aquamarine) in Matrix
Beryllium aluminum silicate (Be3Al2(SiO3)6)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Bornite
Bornite (Cu5FeS4)
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Epidote
Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Blue Calcite
Calcite (CaCO3)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Sunstone
Heliolite (Oligoclase or Orthoclase Feldspar), (Ca,Na)(Al,Si)4O8
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
Amethyst (Quartz)
SiO2 (Silicon Dioxide)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Banded Iron Formation (BIF)
Banded Iron Formation
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Celestine (Celestite)
Strontium sulfate (SrSO4)
Milky Quartz
Silicon Dioxide (SiO2)
Cavansite
Cavansite (Ca(VO)Si4O10·4H2O)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Beach Pebble)
Clastic sedimentary rock (primarily Quartz and Feldspar)
Sandstone (likely Siltstone)
Arenite or Siltstone (high SiO2 content)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Sandstone
Arenite (primarily SiO2)
Agate (Fortification Agate)
Banded Chalcedony (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz Geode
Silicon Dioxide (SiO2)
Gold Nugget
Native Gold (Au)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Carnelian Agate
Silicon Dioxide (SiO2)