Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Category
Mineral (Native Element Alloy)
Browse mineral (native element alloy) specimens identified by the Rock Identifier community.
Learn about Mineral (Native Element Alloy) in the encyclopedia
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Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
Vanadinite on Barite
Pb5(VO4)3Cl (Vanadinite) with BaSO4 (Barite)
mineral
Synthetic Zinc/Polycarbonate Composite (Bey-specimen)
Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay
Anthropogenic Mineral Mimic
Malachite
Malachite (Cu₂CO₃(OH)₂), a copper carbonate hydroxide
mineral
Bismuth
Bismuth (Bi)
mineral
Granite (with Beryl/Aquamarine)
Granite (Feldspar, Quartz, Mica, and Beryl Be3Al2Si6O18)
igneous
Note: Item is a Synthetic/Man-made Object
Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)
Non-geological
Cuprite
Cuprite (Copper(I) oxide, Cu2O)
mineral
Iron Meteorite
Siderite (meteoritic iron, Fe-Ni alloy)
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Turquoise
Hydrous phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Turquoise and Hematite
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)
mineral
Diamond
C (Native Carbon)
gemstone
Diamond
C (Native Carbon)
gemstone
Diamond (or Cut Clear Gemstone)
C (Native Carbon)
gemstone
Gold-bearing quartz or iron-stained sulfide specimen
Native gold (Au), possibly in quartz with limonite/goethite and sulfide remnants
mineral
Turquoise (possible Howlite imitation)
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Beryl (likely Aquamarine)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Manganese Ore (Psilomelane/Pyrolusite)
Psilomelane ((Ba,H2O)2Mn5O10) and Pyrolusite (MnO2)
Mineral
Quartz-rich pegmatite specimen
Pegmatite, composed mainly of quartz (SiO₂), feldspar, and minor mica/iron oxides
igneous
Quartz-rich pegmatite (likely feldspar–quartz rock)
Granitic pegmatite; chiefly quartz (SiO₂) and feldspar, with minor mica and dark accessory minerals
igneous
Limestone with Lichen
Calcium Carbonate (CaCO3) with Endolithic/Epilithic Lichen
sedimentary
Gold-bearing Quartz
Quartz (SiO2) with associated pyrite or native gold
mineral
Gold in Quartz Matrix
Native Gold (Au) in Quartz (SiO2)
mineral
Gold and Diamond
Native Gold (Au) and Diamond (C)
mineral
Gold-Bearing Quartz
Auriferous Quartz (SiO2 with native Au)
Mineral
Gold Ore
Native Gold (Au) in Quartz or Silicate matrix
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
sedimentary
Sulfur on Quartz
Native Sulfur (S8) with Quartz (SiO2)
mineral
Amygdaloidal Basalt
Extrusive mafic igneous rock with amygdules
igneous
Silver-colored mica schist
Muscovite–quartz schist, possibly with biotite
metamorphic
Iron Meteorite
Siderite (Iron-Nickel Alloy)
meteorite
Iron Meteorite
Siderite (Iron-Nickel Alloy)
meteorite
Native silver (probable)
Elemental silver, Ag, likely with oxidized sulfide or copper minerals
mineral
Iridescent chalcopyrite (“peacock ore”)
Chalcopyrite, CuFeS₂, commonly surface-oxidized to covellite and related copper sulfides
mineral
Beryl (Emerald Variety)
Beryllium aluminum silicate (Be3Al2(SiO3)6) with chromium/vanadium traces
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron traces)
mineral
Pitted Sedimentary Rock / Cupstone
Sedimentary rock with weathering pit (arenite / sandstone)
sedimentary
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Sunstone
Plagioclase Feldspar ((Ca,Na)(Al,Si)4O8)
mineral