Raw Calcite
Calcium Carbonate (CaCO3)
mineral
Category
Metamorphic Or Igneous
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
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Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Sapphire
Corundum (Al2O3:Fe)
gemstone
Green Quartz / Prasiolite
Silicon Dioxide (SiO2)
mineral
Quartz Pebble with Epidote / Chlorite Inclusions
Silicon Dioxide (SiO2) with Epidote/Chlorite inclusions
mineral
Gold-Bearing Quartz Ore
Crystalline Silicon Dioxide (SiO2) with Trace Aurum (Au)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Bull Quartz with Mica and Host Rock
Massive Quartz (SiO2) with Muscovite/Chlorite inclusions
igneous
Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Orange Calcite
Calcite (CaCO3)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Native Gold (in the form of jewelry)
Gold (Au)
mineral
Blue Sapphire
Corundum (Al2O3)
gemstone
Sapphire
Corundum (Al2O3)
gemstone
Calcite (with iron oxide staining)
Calcium Carbonate (CaCO3)
mineral
Yellow Sapphire
Corundum (Al2O3:Fe)
gemstone
Quartz Pebble
Crystalline Silica (SiO2)
sedimentary
Biotite Mica
K(Mg, Fe)3(AlSi3O10)(F, OH)2
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Amazonite
K(AlSi3O8)
mineral
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Quartz Vein
Silicon Dioxide (SiO2)
Mineral
Milk Quartz (White) and Yellow Aventurine (Yellow)
Silicon Dioxide (SiO2)
mineral
Quartz with Mafic/Chlorite Veins
Silicon Dioxide (SiO2) with Chlorite/Epidote cross-veining
metamorphic
Quartz in Matrix (or Quartz Vein Rock)
Silicon Dioxide (SiO2) with host rock
igneous
Diamond and Sapphire
Carbon (Diamond, C) and Aluminum Oxide (Sapphire, Al2O3)
gemstone
Blue Sapphire
Corundum (Al2O3 with trace Titanium/Iron)
mineral
Granite cobble
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Parti Sapphire
Corundum (Al2O3)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Pink Calcite
Calcium Carbonate (CaCO3)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Black Sapphire
Corundum (Al2O3)
gemstone
Ruby and Sapphire Cluster Ring
Corundum (Al2O3)
gemstone
K2 Jasper (K2 Stone)
Azurite in Granite / Quartzite
metamorphic
Quartz with Iron Oxide Inclusions
Silicon Dioxide (SiO2)
mineral
Ruby (in a ring setting)
Corundum (Al2O3:Cr)
gemstone
Black Onyx
Silicon Dioxide (SiO2) with parallel banding
mineral
Raw Emerald (Emerald Beryl)
Beryl (Be3Al2Si6O18) with chromium/vanadium impurities
mineral
Ruby (Pinkish-Red)
Corundum (Al2O3 with Chromium trace)
mineral