Quartz Vein in Sedimentary Matrix
Silicon Dioxide (SiO2) with host rock
mineral
Category
Metal (Elemental Mineral)
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Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
mineral
Quartz (Clear or Milky)
Silicon Dioxide (SiO2)
mineral
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Industrial byproduct (often mistaken for obsidian or mineral)
Green aventurine beads
Aventurine quartz, SiO₂, colored green by fuchsite or other inclusions
mineral
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
mineral
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
mineral
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock (Gossanous Matrtix)
Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)
mineral
Diamond (set in jewelry)
Diamond (Carbon, C)
mineral
Diamond (in a gold ring)
Diamond (pure carbon, C)
mineral
Limonite (Gossan)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Turquoise inlay ring
Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Granite
Intrusive igneous rock
igneous
Amethyst and clear gemstone ring
Amethyst (purple quartz, SiO₂), likely set with colorless quartz or glass accents
gemstone
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Turquoise cabochon ring
Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Copper Ore (with Malachite/Chrysocolla and Iron Oxides)
Secondary Copper Minerals (Cu2(CO3)(OH)2 / (Cu,Al)2H2Si2O5(OH)4·nH2O)
mineral
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Granite
Granite (Felsic intrusive igneous rock)
igneous
Amethyst ring
Amethyst, purple quartz (SiO₂)
gemstone
Blue-green cabochon pendant, likely turquoise or composite turquoise
Turquoise: hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification is uncertain from the blurred image
gemstone
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) vein cutting through host rock
mineral
Bismuth Crystal
Bismuth (Bi)
mineral
Quartz vein in dark metamorphic rock
Likely quartz-rich vein cutting a biotite- or amphibole-rich metamorphic host; exact host rock cannot be confirmed from the image
metamorphic
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Epithermal Gold Ore (in Quartz/Rhyolite matrix)
Auriferous Quartz (Au + SiO2)
mineral
Gold
Native Gold (Au)
mineral
Granite
Phaneritic plutonic igneous rock (mainly Quartz, Feldspar, and Mica)
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Native gold nugget or flake
Native gold (Au), possibly with minor silver/electrum
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Aura Quartz (Titanium/Bismuth Coated)
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Gold Nugget
Native Gold (Au)
mineral
Granite
Felsic intrusive igneous rock
igneous