Faceted purple-blue beads, likely synthetic glass or treated gemstone
Indeterminate; possible synthetic corundum, synthetic spinel, or dyed quartz (SiO₂)
gemstone
Category
Mineral (Metal)
Browse mineral (metal) specimens identified by the Rock Identifier community.
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Milky or Iron-Stained Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix
igneous
Granite
Intrusive igneous rock
igneous
Cubic Zirconia (CZ) Jewelry
Zirconium dioxide (ZrO2)
mineral (synthetic)
Green Aura Quartz
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating
mineral
Limonite and Goethite on Gossan
FeO(OH)·nH2O
mineral
Chalcopyrite-bearing Ore
Chalcopyrite (CuFeS2)
mineral
Beryl (Variety: Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
mineral
Beryl (var. Heliodor or Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
mineral
Celestine (Celestite)
Strontium sulfate (SrSO4)
mineral
Granite
Phaneritic plutonic igneous rock (mainly Quartz, Feldspar, and Mica)
igneous
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
Bismuth Crystal
Bismuth (element symbol Bi, atomic number 83)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Chalcopyrite (Peacock Ore)
Copper Iron Sulfide (CuFeS2)
mineral
Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Granite Boulder
Felsic Intrusive Igneous Rock
igneous
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Copper Ore (with Malachite/Chrysocolla and Iron Oxides)
Secondary Copper Minerals (Cu2(CO3)(OH)2 / (Cu,Al)2H2Si2O5(OH)4·nH2O)
mineral
Granite
Granite (Felsic intrusive igneous rock)
igneous
Limonite (Gossan)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Granite / Pegmatite with Quartz Vein
Granite (composed mainly of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase)
igneous
Silver (Native or Alloyed)
Ag (Argentum)
mineral
Granite
Felsic intrusive igneous rock
igneous
Iron-stained Quartz (Gossan/Limonite-coated Quartz)
Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)
mineral
Quartz crystal pendant
Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz
mineral
Opalite
Synthetic Opalized Glass
gemstone
Gold in Quartz Matrix
Native Gold (Au) with Quartz (SiO2) and Slate/Shale
mineral
Granite
Felsic intrusive igneous rock
igneous
Quartz Vein Rock
Quartz (Silicon Dioxide, SiO2)
igneous
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Aura Quartz Geode (Angel Aura Quartz)
Silicon Dioxide (SiO2) bonded with precious metals
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral