Native Copper
Native Copper (Cu)
mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
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Chrysocolla
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
mineral
Pink Sandstone
Quartz arenite / Quartz sandstone (SiO2)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Crackle Glass (Simulated Gemstone)
Amorphous Solid (SiO2)
man-made glass
Red cabochon gemstone ring (likely glass or synthetic stone)
Undetermined; the image does not establish a natural mineral identity
gemstone
Likely rough garnet (possibly almandine)
Garnet group; likely almandine, Fe₃Al₂(SiO₄)₃
mineral
Jasper
Microcrystalline quartz, SiO2
sedimentary
Chrysocolla
Cu2-xAlx(H2O)n(H2Si2O5)5 · nH2O (Hydrated copper aluminum silicate)
mineral
Purpurite
Manganese Iron Phosphate, Mn3+(PO4)
mineral
Druzy Quartz on Ironstone
Silicon Dioxide (SiO2) on Limonitic Ironstone
mineral
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Amethyst cabochon
Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)
gemstone
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
mineral
Quartz Druzy (on Matrix)
Silicon Dioxide (SiO2)
mineral
Malachite
Malachite (Cu2CO3(OH)2)
mineral
Malachite
Copper Carbonate Hydroxide (Cu2CO3(OH)2)
mineral
Quartz crystal pendant
Quartz (silicon dioxide, SiO₂)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Black Onyx and Mother of Pearl
Cryptocrystalline Quartz (SiO2) and Nacre (Calcium Carbonate)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Turquoise and Hematite
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3
mineral
Agate
Chalcedony SiO2
mineral
Prehnite
Calcium aluminum silicate hydroxide, Ca2Al2Si3O10(OH)2
mineral
Aquamarine
Beryl (Be3Al2(SiO3)6)
gemstone
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Sodalite
Sodium aluminum silicate chloride, Na8Al6Si6O24Cl2
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Sunstone
Feldspar group (Plagioclase / Oligoclase), Na(AlSi3O8) to Ca(Al2Si2O8)
mineral
Ametrine
Quartz (SiO2 with Fe impurities)
gemstone
Green Jasper
Microcrystalline quartz (SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Feldspar
Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pink Spinel
Magnesium aluminum oxide (MgAl2O4)
gemstone
Citrine
Silicon Dioxide (Quartz variety)
mineral
Chrysocolla
Hydrated copper silicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral