Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Category
Mineral, Metal (Element)
Browse mineral, metal (element) specimens identified by the Rock Identifier community.
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Gold Ore in Quartz
Auriferous Quartz (Au + SiO2)
igneous
Aura Quartz (Titanium/Bismuth Coated)
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Gold Nugget
Native Gold (Au)
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Limonite and Goethite on Gossan
FeO(OH)·nH2O
mineral
Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Lepidolite on Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite) / SiO2 (Quartz)
mineral
Gold Flakes
Native Gold (Au)
mineral
Quartz (Clear or Milky)
Silicon Dioxide (SiO2)
mineral
Copper Ore (with Malachite/Chrysocolla and Iron Oxides)
Secondary Copper Minerals (Cu2(CO3)(OH)2 / (Cu,Al)2H2Si2O5(OH)4·nH2O)
mineral
Gossan (Iron Hat) with Quartz and Chlorite
Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite
Mineral/Metamorphic Substrate
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Limonite (Gossan)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Industrial byproduct (often mistaken for obsidian or mineral)
Amethyst and clear gemstone ring
Amethyst (purple quartz, SiO₂), likely set with colorless quartz or glass accents
gemstone
Iron-rich sandstone (Gozan/Ironstone)
Ferruginous Sandstone (clastic sedimentary rock)
sedimentary
Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Likely quartz-rich igneous pebble
Uncertain; possibly granite or quartz-bearing pegmatite
igneous
Granite
Intrusive igneous rock
igneous
Opalite
Synthetic glass (SiO2 + metal additions)
mineraloid
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Rhodochrosite (Beads) and Citrine (Pendant)
Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)
mineral
Granite
Granite (Felsic intrusive igneous rock)
igneous
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Slag
Metallurgical Slag
igneous
Iron Gossan (Limonite/Goethite)
Hydrated Iron Oxides (FeO(OH)·nH2O) from oxidation zones
sedimentary
Granite
Phaneritic plutonic igneous rock (mainly Quartz, Feldspar, and Mica)
igneous
Granite
Felsic intrusive igneous rock
igneous
Green Aura Quartz
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating
mineral
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Native Copper
Native Copper (Cu)
mineral
Epithermal Gold Ore (in Quartz/Rhyolite matrix)
Auriferous Quartz (Au + SiO2)
mineral
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Turquoise cabochon ring
Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Bismuth
Bismuth (Bi)
mineral
Zircon
Zircon (Zirconium Silicate, ZrSiO4)
mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral