Pyrite
Iron Sulfide (FeS2)
mineral
Category
Mineralological Variety
Browse mineralological variety specimens identified by the Rock Identifier community.
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Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine and Moonstone
Beryl (Be3Al2Si6O18) and Orthoclase (KAlSi3O8)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Onyx
Chalcedony (SiO2) with parallel banding
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron
mineral
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Amazonite
K(AlSi3O8)
mineral
Peridot
Olivine (Mg, Fe)₂SiO₄
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Caribbean Calcite
Aragonite and Calcite (CaCO3)
mineral
Bloodstone
Heliotrope
Mineral
Onyx (beads)
SiO2 (Cryptocrystalline Quartz)
Mineral
Sandstone
Arenite
sedimentary
Agate Sliced Nodule
Silicon Dioxide (SiO2)
mineral
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
SiO2, highly silicified rhyolite or spherulitic chalcedony
mineral
Chert (Yellow variety / Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Carnelian
Cryptocrystalline Quartz (SiO2 with Hematite impurities)
mineralish (variety of chalcedony)
Chert / Flint Pebble
Microcrystalline quartz (SiO2)
sedimentary
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Corundum (Sapphire / Raw Sapphire)
Aluminum Oxide (Al2O3)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Brown Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Tumbled jasper, likely picture jasper or brecciated jasper
Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide pigments
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Jasper pebble (Yellow/Brown Jasper)
Silicon Dioxide (Microcrystalline Quartz, SiO2 with Iron Oxide impurities)
sedimentary
Chalcedony (Agate / Chert)
Silicon Dioxide (SiO2)
mineral
Fuchsite
K(Al,Cr)2(AlSi3)O10(OH)2
mineral
Fuchsite or Green Mica Schist
Muscovite variant (KAl2(AlSi3O10)(OH)2 with Cr)
metamorphic