White Quartz
Quartz (SiO2)
Mineral
Category
Sedimentary And Metamorphic
Browse sedimentary and metamorphic specimens identified by the Rock Identifier community.
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Yellow Jade (often Serpentine or Dolomite)
Primarily Serpentine (Mg3Si2O5(OH)4) or Dolomite (CaMg(CO3)2), though the term 'yellow jade' is also sometimes applied to varieties of true nephrite or jadeite.
Mineral, often a rock given its aggregate nature
Quartz with Schist Inclusion
Quartz (SiO2) with micaceous schist inclusions
metamorphic
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Green Aventurine
Tectosilicate, variety of Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Chromium-rich Fuchsite mica
mineral
Quartz
Quartz (SiO₂)
Mineral
Quartz (Pebble)
Quartz (SiO₂)
Mineral
Quartz
Silicon Dioxide (SiO2)
Mineral
Fuchsite Quartzite (Green Aventurine in raw form)
Metamorphic Quartzite (SiO2) with Mariposite/Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Yellow Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
metamorphic
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
metamorphic
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Green Aventurine
Silicon dioxide (SiO2) with inclusions of Fuchsite
mineral
Rhodonite
Rhodonite (Manganese silicate, (Mn,Fe,Mg,Ca)SiO3)
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
mineral
Marble
Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.
Metamorphic Rock
Glacial granite/granitoid boulder
Granite to granodiorite; chiefly quartz, feldspar, and biotite/hornblende
igneous
Sapphire
Corundum (Al2O3)
mineral
Quartz-rich metamorphic rock, likely quartzite
Quartzite; predominantly crystalline SiO₂, possibly with mica or iron-oxide impurities
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Veined quartz-bearing metamorphic rock
Likely quartzite or siliceous schist with iron-oxide staining
metamorphic
Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
igneous, sedimentary, metamorphic, and mineral
Corundum
Corundum (Al2O3)
Mineral
Rough Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Rainbow Moonstone (White Labradorite)
Labradorite (White varieties with Schiller effect), (Na,Ca)(Al,Si)4O8
gemstone
Blue Dumortierite Quartz
Dumortierite Inclusions in Quartz (SiO2 with Al7(BO3)(SiO4)3O3)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
White Sapphire
Corundum (Al2O3)
mineral
Biotite Mica
Biotite, K(Mg,Fe)3AlSi3O10(F,OH)2
mineral
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite
Metamorphic Quartzite
metamorphic