Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Category
Browse metamorphic (low grade) specimens identified by the Rock Identifier community.
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Nephrite Jade (River Cobble)
Nephrite (Silicate mineral: Ca2(Mg, Fe)5Si8O22(OH)2)
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chrysocolla on Matrix
Hydrated copper silicates ((Cu,Al)2H2Si2O5(OH)4·nH2O)
Green Aventurine
Silicon Dioxide (Quartz) with inclusions (SiO₂)
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Rough Diamond
Diamond (pure Carbon, C)
Amethyst (variety of Quartz)
SiO2 (Silicon Dioxide) with trace iron impurities
Diamond (in jewelry setting)
Diamond (Carbon, C)
Coal (most likely Bituminous or Anthracite)
Coal (primarily composed of carbon with varying amounts of other elements)
Feldspar-rich Quartzite
Metamorphic Quartz-Feldspar Aggregate (SiO2 + KAlSi3O8)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite
Pyrite (FeS₂)
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Diorite
Diorite
Aquamarine
Beryl (Be3Al2Si6O18), specifically the blue-green variety
Amber
Fossilized Tree Resin (Amorphous Hydrocarbon)
Jade
There are two distinct minerals classified as Jade: Jadeite (Na(Al,Fe3+)Si2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the image showing translucent, somewhat fibrous material, it is likely Nephrite.
Soapstone
Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)
Bronzite
MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Rhodonite beads (possibly dyed or treated, or lower quality Rhodonite)
Manganese inosilicate, (Mn,Fe,Mg,Ca)SiO3
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Quartz (Druzy) in host rock
SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)
N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)