Chrysocolla
Hydrated copper phyllosilicate mineral (Cu,Al)2H2Si2O5(OH)4·n(H2O)
mineral
Category
Not A Natural Rock (Man Made Composite)
Browse not a natural rock (man made composite) specimens identified by the Rock Identifier community.
Pink Halite (Himalayan Salt)
Halite (Sodium Chloride, NaCl)
sedimentary
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Diamond (Round Brilliant Cut)
Diamond (Pure Carbon, C)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2 with iron impurities)
Mineral
Placer Gold Nugget
Native Gold (Au)
mineral
Limonitic Sandstone with Inclusion
Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)
sedimentary
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Fluorite (Rainbow Fluorite)
Fluorite (Calcium Fluoride, CaF2)
mineral
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Mineral
Amethyst Sage Agate
Silicon Dioxide (SiO2) with trace minerals (Manganese/Iron oxides)
mineral
Jasper
Silicon Dioxide (SiO2)
sedimentary
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Limestone Pebble
Calcium Carbonate (CaCO3)
sedimentary
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2)
sedimentary
Muscovite Mica
Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2
Mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
Pink Granite
Granite (Felsic Plutonic Rock)
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Amethyst
Silicon Dioxide (SiO2) with trace Iron (Fe)
mineral
Gold and Diamond
Native Gold (Au) and Diamond (C)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Pyrite (on Shale/Matrix)
Iron Disulfide (FeS2)
mineral
Green Fluorite (likely synthetic or heat-treated for jewelry)
Calcium Fluoride (CaF2)
mineral
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
mineral
Arkosic Sandstone
Arkose
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Limonite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
mineral
Diamond (Cluster Setting)
Carbon (C) - Diamond
mineral
Diamond
Carbon (C)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite Pegmatite
Coarse-grained Granite (SiO2 - Aluminum and Alkalies)
igneous
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
mineral
Gold Nugget
Native Gold (Au)
mineral
Basalt Cobble
Vesicular Basalt (Mafic Extrusive)
igneous
Granodiorite
Granodiorite
igneous
Vesicular Basalt (Pumice-like)
Vesicular Basalt
igneous
Granodiorite
Granodiorite (containing Plagioclase, Quartz, and Biotite)
igneous
Diamond (Macled/Crystal fragment)
Carbon (C), isometric crystal system
mineral
Fossiliferous Limestone (Coral Fossil)
Scleractinian Coral in Calcium Carbonate (CaCO3)
sedimentary