Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
Mineral
Category
Mineral
Browse mineral specimens identified by the Rock Identifier community.
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Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Gneissic Schist
Foliated Metamorphic Rock (Schist/Gneiss transition)
metamorphic
Quartz Geode or Druzy Quartz in Host Rock
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Limonite (Iron Ore)
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Mineral
Otodus Shark Tooth
Otodus obliquus
fossil
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Amygdaloidal Rhyolite
Amygdaloidal felsic extrusive rock
igneous
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Schist (Micaceous Schist)
Mica Schist
metamorphic
Chrysocolla on Matrix
Hydrated copper phyllosilicate mineral (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Diorite
Intermediate plutonic igneous rock
igneous
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Magnetite with Pyrite or Chalcopyrite inclusions
Magnetite (Fe3O4) with Pyrite (FeS2)
mineral
Chrysocolla in Matrix
Hydrated copper phyllosilicate mineral (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Pyrite in Shale
Iron Sulfide (FeS2) in Sedimentary Matrix
mineral
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Shale
Shale (Argillaceous sedimentary rock)
sedimentary
Sandstone (Quartz-rich)
Arenite (Quartz Arenite)
sedimentary
Green Aventurine (Tumbled Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Shale
Shale (Lutite)
sedimentary
Blue Celestite (with Galena)
Strontium sulfate (SrSO4) and Lead sulfide (PbS)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Peach Aventurine
Quartz variety (SiO2 + Hematite/Goethite inclusions)
mineral
Breciated Limestone with Calcite Veins
Sedimentary Breccia (CaCO3)
sedimentary
Blue Sapphire
Corundum (Al2O3)
mineral
Moonstone (Feldspar)
Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)
mineral
Quartz (Riverstone / Cobble)
Silicon Dioxide (SiO2)
mineral
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
mineral
Magnetic Hematite
Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)
Mineral
Phantom Quartz with Chlorite and Hematite inclusions
Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)
mineral
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
mineral
Banded Slate or Siltstone with Quartz/Calcite Veins
Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Iron Oxide Inclusions
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock with secondary mineral fillings)
igneous
Sandstone
Arenite (Sedimentary Rock)
sedimentary
Fluorite in Matrix
Fluorite (CaF2) within a host rock matrix
Mineral