Carnelian Agate
Silicon Dioxide (SiO2)
Category
Browse organic mineraloid and mineral specimens identified by the Rock Identifier community.
Carnelian Agate
Silicon Dioxide (SiO2)
Green Chalcedony (likely Chrysoprase or Green Onyx)
Silicon Dioxide (SiO2) with trace nickel or chromium inclusions
Quartz Pebble (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Agate (or Chalcedony)
Silicon Dioxide (SiO2)
Common Green Opal
Hydrated amorphous silicon dioxide (SiO2·nH2O)
Smoky Quartz
Silicon Dioxide (SiO2)
Amazonite
K(AlSi3O8), Microcline (potassium feldspar)
Gold in Quartz
Hydrothermal Quartz with Native Gold (SiO2 with Au)
Cubic Zirconia
Zirconium dioxide (ZrO2)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Turquoise (likely Sleeping Beauty variety or treated Howlite imitation)
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
Feldspar (likely Amazonite or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
Rose Quartz
Silicon Dioxide (SiO2)
Garnet
Garnet (X3Y2(SiO4)3)
Rose Quartz
Silicon dioxide (SiO2) with trace elements of Titanium, Iron, or Manganese
Rose Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Labradorite
(Ca,Na)(Al,Si)4O8
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
Labradorite
Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Milky Quartz
Silicon Dioxide (SiO2)
Dearest Ring (Gemstones)
Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)
Green Chalcedony (Green Agate)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Hypersthene
Hypersthene ((Mg,Fe)SiO3)
Clear Quartz Crystal (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Biotite on Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Biotite / Black Mica
K(Mg,Fe)3(AlSi3O10)(F,OH)2
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Beryl (Aquamarine) in Matrix with Schorl
Be3Al2Si6O18 (Beryl) with NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)
Pyrite
Iron Sulfide (FeS2)
Chalcedony (Moonstone-like Agate)
Silicon Dioxide (SiO₂)
Green Kyanite
Kyanite (Al2SiO5)
Yellow Quartz
Silicon Dioxide (SiO2)
Sodalite
Chloric sodium aluminum silicate (Na8(Al6Si6O24)Cl2)
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn+2,Fe+2,Mg,Ca)SiO3