Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Category
Browse organic gem material (botanical) specimens identified by the Rock Identifier community.
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Jasper (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst and Citrine (Quartz variants)
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Raw Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
Peridot (Olivine)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
Ruby
Corundum (Al2O3 with Chromium)
Dearest Jewelry (Multigemstone)
Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)
Red Jasper (beads)
SiO₂ (Silicon Dioxide)
Chert (Cherty Limestone or Flint)
Microcrystalline Silica (SiO2)
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Shale
Shale (fine-grained clastic sedimentary rock)
Aura Amethyst (Dyed/Coated)
Titanium-treated Silicon Dioxide (SiO2)
Black Opal
Hydrated Silica (SiO2·nH2O)
Dalmatian Stone
Peralkaline rhyolite
Amber and Citrine Quartz
Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)
Apatite
Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))
Garnet
Garnet Group (formula varies, e.g., Almasndine: Fe3Al2(SiO4)3)
Almandine Garnet
Almandine [Fe3Al2(SiO4)3]
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
Olivine (Peridotite)
Magnesium iron silicate ((Mg, Fe)2SiO4)
Granitic Pegmatite
Granitic Pegmatite with Quartz and Feldspar
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Rough Green Beryl (Emerald variety)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Corundum (Sapphire)
Corundum (Al2O3)
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
Lake Superior Agate
Banded Chalcedony (SiO2)
Kimberlite
Kimberlite (Porphyritic Peridotite)
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
Zinc Ore (Sphalerite in Matrix)
Sphalerite (Zn,Fe)S within a carbonate or silicate host rock
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Banded Chert
Cryptocrystalline Quartz (SiO2)
Naga Silver-Inlaid Ebony and Bone/Horn Beads
Diospyros (Ebony) or Keratin (Horn) with Silver/White-Metal Inlay
Amethyst
Amethyst (SiO2 with iron impurities)