Quartzite
Quartzite (primarily SiO2)
Category
Browse metamorphic and igneous specimens identified by the Rock Identifier community.
Quartzite
Quartzite (primarily SiO2)
Lapis Lazuli
Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite
Zebra Jasper (usually a trade name for Serpentine or Basalt blend)
Antigorite/Chrysotile (Serpentine family) - Mg3Si2O5(OH)4
Aventurine
Aventurine Quartz (SiO2 with inclusions)
Lapis Lazuli
Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Pink Quartzite
Quartzite (SiO2 with iron oxide inclusions)
Jasper containing epidote (Unakite-like)
Epidotized Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Chiastolite (Andalusite)
Al2SiO5
Graphite
Graphite (Native Carbon, C)
Jade
Jadeite or Nephrite (both are commonly referred to as 'jade'). Jadeite: NaAlSi2O6; Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2.
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Granite or Porphyritic Igneous Rock (weathered)
Granitoid
Yellow Calcite
Calcium Carbonate (CaCO3)
Green Aventurine
Silicon dioxide (SiO2) with Fuchsite inclusions
Green Aventurine
Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
Jadeite
NaAlSi2O6; Jadeite silicate mineral
Aventurine
Silicon dioxide with micas (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
Jade (Nephrite and Jadeite)
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Aquamarine
Beryl (Be3Al2Si6O18)
Banded Agate (White Agate)
Chalcedony (Silicon Dioxide, SiO2)
Aquamarine
Beryl (Be3Al2Si6O18)
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Green Aventurine
Silicon dioxide (SiO2) with fuchsite inclusions
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
Green Calcite
Calcium Carbonate (CaCO3)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Raw Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Dumortierite Quartz
Dumortierite (Al7BO3(SiO4)3O3) in Quartz (SiO2)
Jadeite
Jadeite (NaAlSi2O6)
Almandine Garnet
Almandine (Fe3Al2Si3O12)
Dragon Blood Jasper
Epidote with Pietersite or Red Jasper (Silicate mineral)