Green Kyanite
Kyanite (Al2SiO5)
Category
Browse mineral, organic gemstone specimens identified by the Rock Identifier community.
Green Kyanite
Kyanite (Al2SiO5)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Smoky Quartz
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with ferric iron impurities
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Epidote
Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Pyrite (on Quartz/Host Rock)
Iron Sulfide (FeS₂)
Strawberry Quartz
Quartz (SiO2) with inclusions of Goethite or Hematite
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Sunstone
Heliolite (Oligoclase or Orthoclase Feldspar), (Ca,Na)(Al,Si)4O8
Rough Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
Amethyst (Quartz)
SiO2 (Silicon Dioxide)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Epidote
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Rough Topaz
Aluminum silicate fluoride hydroxide [Al2SiO4(F, OH)2]
Amazonite
Potassium Feldspar (KAlSi3O8), specifically Microcline
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Prehnite
Prehnite, Ca2Al(AlSi3O10)(OH)2
Hypersthene
Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)
Aquamarine
Beryl (Be3Al2Si6O18 with trace Fe2+)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Emerald (Tumbled Beryl)
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Rose variety)
Silicon Dioxide (SiO2)
Amazonite
Potassium feldspar (Microcline) - K(AlSi3O8)
Rose Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Fossilized Gastropod (Snail)
Class Gastropoda (internal mold or 'steinkern')
Pegmatite
Granitic Pegmatite
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
Labradorite
Labradorite (Plagioclase Feldspar Series: (Ca,Na)(Al,Si)4O8)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Opalite
Synthetic Opalised Glass
Epidote
Epidote - Ca2(Al,Fe)3(SiO4)3(OH)