Green Aventurine
Quartz (Silicon Dioxide) with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Category
Igneous, Metamorphic, And Sedimentary
Browse igneous, metamorphic, and sedimentary specimens identified by the Rock Identifier community.
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Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with natural radiation induced color centers
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Gold Ore
Native Gold (Au) in Matrix
mineral
Ruby (Corundum)
Al2O3 (Aluminium oxide with Chromium impurities)
Mineral
Raw Citrine (Yellow Quartz)
Citrine / Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Sapphire
Corundum (Al2O3 - Aluminum Oxide)
mineral
Sodalite (Dotted or Spotted Variety)
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Orthoclase (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
igneous
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
metamorphic
Garnet in Schist (Polished Tower)
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Soapstone (Steatite)
Steatite (Hydrous magnesium silicate)
metamorphic
Black Star Diopside (beads)
Diopside (CaMgSi2O6) - a member of the pyroxene group
Mineral
Gneiss (specifically Granitic Gneiss)
Gneissic Metamorphic Rock
metamorphic
Greenstone
Metabasalt / Chlorite Schist
metamorphic
Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
igneous, sedimentary, metamorphic, and mineral
Muscovite Schist with Quartz
Mica Schist (KAl2(AlSi3O10)(OH)2 with SiO2)
metamorphic
Fuchsite in Quartz
K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Shungite
Non-crystalline carbon (allotrope of carbon)
metamorphic
Garnet Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
metamorphic
Greenstone with Quartz Veining
Epidiorite or Metabasalt with SiO2 (Quartz) veins
metamorphic
Greenstone
Protolith of basalt, diabase, or gabbro; often contains minerals like chlorite, actinolite, and epidote
metamorphic
Greenschist (Chlorite Schist)
Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)
metamorphic
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
igneous
Epidote in Granite Gneiss
Epidote bearing Orthogneiss (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Greenschist with Quartz Veining
Greenschist (commonly containing Chlorite, Actinolite, and Epidote)
metamorphic
Chalcedony (Tumbled Agate/Jasper)
Silicon dioxide (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Clear Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Milky Quartz Pebble with Chert
Silicon Dioxide (SiO2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral