Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Category
Browse organic gemstone (fossilized resin) specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Pink Feldspar
Orthoclase Feldspar (KAlSi3O8)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Cloudy Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite [Na8(Al6Si6O24)Cl2]
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Red Coral
Corallium rubrum (for precious red coral), although other species like Corallium japonicum and Paracorallium are also used.
Popcorn
Zea mays everta (P. Wilson) (Botanical name for the corn variety)
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Ambergris
Ambrein (C30H52O Derivative)
Dog (Sleeping)
Canis familiaris (or Canis lupus familiaris)
Peridot (Olivine)
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Moonstone (Feldspar)
Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)
Moonstone
Orthoclase (Potassium aluminum silicate - KAlSi3O8)
Mixed Gemstone Bracelet
Mixed natural minerals and rocks (e.g., Rhodonite, Malachite, Sodalite, Rose Quartz, Black Tourmaline, Quartz/Chalcedony variants)
Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Pearl
Biogenic CaCO3 (Aragonite and Calcite)
Petrified Wood
Silicified wood (primarily SiO2)
Chert (Arrowhead or Projectile Point)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Turquoise in Matrix
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Shungite
Carbonaceous rock (primarily amorphous carbon)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Amazonite
Potassium aluminum silicate (KAlSi3O8)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Unakite
Epidotized Granite
Onyx (Black Onyx)
Onyx (Silicon Dioxide, SiO2)
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
Kyanite
Kyanite (Al2SiO5)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Amazonite
Amazonite (KAlSi3O8)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)