Chevron Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
Category
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Chevron Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
Blue Dyed Agate
Chalcedony (SiO2) with artificial pigment
White Precious Opal
Hydrated Silica (SiO2·nH2O)
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Ocean Jasper
Spherulitic Chalcedony (SiO2)
Amethyst Quartz
Silicon Dioxide (SiO2) with iron impurities
Sodalite
Sodalite [Na8(Al6Si6O24)Cl2]
Basalt with Epidote (Greenstone)
Epidote-bearing Metabasalt
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of iron oxide)
Kambaba Jasper
Stromatolite (Fossilized Algae within Microcrystalline Quartz)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other impurities
Sapphirine in Magnesian Schist
Sapphirine: (Mg,Al)8(Al,Si)6O20
Yellow Agate
Agate (Microcrystalline Silicon Dioxide, SiO2)
Clear Quartz (Carved Dragon)
Quartz (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Moonstone
Orthoclase (KAlSi3O8) with inclusions of Albite (NaAlSi3O8)
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Petrified Wood
Silicified wood (Quartz, Chalcedony, or Opal)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Tiger's Eye (Polished Point/Tower)
SiO2 (Silicon Dioxide) with included crocidolite fibers
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
Staurolite (Fairy Cross)
Staurolite (Fe2+2Al9Si4O23(OH))
Jasper
Jasper (Silicon Dioxide, SiO2)
Charoite
Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)
Septarian Nodule
Septarian Nodule (Mixture of Calcite, Aragonite, and Limestone/Clay)
Chondrite Meteorite Fragment
Ordinary Chondrite (L or H type)
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Obsidian
Volcanic Glass (Amorphous Silica)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Clear Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Tumbled/Polished Pebble)
Silicon Dioxide (SiO2)
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Rose Quartz
Silicon dioxide (SiO2)
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Lake Superior Agate
Banded Chalcedony (SiO2)