Diamond (in Jewelry)
Diamond (Carbon, C)
Category
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Diamond (in Jewelry)
Diamond (Carbon, C)
Turquoise in Matrix
Hydrous phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Opal ring
Common opal, likely synthetic or assembled blue-green opal (hydrated amorphous silica, SiO₂·nH₂O)
Clear quartz crystal pendant
Quartz (silicon dioxide, SiO₂)
Gold Mineral
Native Gold (Au)
Azurite with Malachite
Azurite: Cu3(CO3)2(OH)2 / Malachite: Cu2CO3(OH)2
Azurite in Matrix
Azurite (Cu3(CO3)2(OH)2)
Chrysocolla on Matrix
Hydrated copper silicates ((Cu,Al)2H2Si2O5(OH)4·nH2O)
Possible fossilized bone fragment
Indeterminate fossil bone; no species can be identified from this image
Jasper
Microcrystalline Quartz (SiO2)
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Fossil Sea Urchin (Echinoid)
Echinoidea fossil (often replaced by silica or calcite)
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Jasper
Microcrystalline Quartz (SiO2)
Amethyst cabochon
Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Chrysocolla in Cuprite
(Cu,Al)2H2Si2O5(OH)4 · nH2O (Chrysocolla) and Cu2O (Cuprite)
Fossilized Shark Tooth
Chondrichthyes (class)
Diamond
Diamond (C)
Tumbled agate/chalcedony
Microcrystalline quartz (SiO₂), likely mossy or dendritic agate with iron-oxide inclusions
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Azurite Malachite
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)
Snowflake Obsidian
Obsidian with Cristobalite inclusions (SiO2)
Diamond (in jewelry setting)
Diamond (Carbon, C)
Fossilized Shark Tooth
Chondrichthyes (Class)
Howlite and Purpurite druzy
Calcium Borosilicate Hydroxide (Howlite) and Manganese Phosphate (Purpurite)
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8) with inclusions
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Native Copper
Native Copper (Cu)
Amethyst jewelry centerpiece
Amethyst, purple quartz (SiO₂), likely set with colorless diamonds or other gems
Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper)
FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)
Quartz Mineral
Silicon Dioxide (SiO2)
Unidentified metallic mineral or meteorite fragment
Indeterminate; possible native metal-bearing sulfide or iron meteorite fragment
Emerald in Matrix
Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)
Pyrite
Iron Disulfide (FeS2)
Decorative gemstone bracelet or jewelry
Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads
Diamond (in jewelry)
Element Carbon (C)
Amethyst (in jewelry)
Silicon Dioxide (SiO2) with iron impurities
Diamond (in jewelry)
Carbon (C)
Diamond (in jewelry)
Cubic Carbon (C)
Diamond (in jewelry)
Diamond (Carbon, C)