Conglomerate
Clastic sedimentary rock (Puddingstone)
Category
Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.
Conglomerate
Clastic sedimentary rock (Puddingstone)
K2 Stone (or K2 Jasper)
Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)
Azurite-Malachite (often a mixed specimen)
Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2(CO3)(OH)2. The specimen appears to be a natural mixture or intergrowth of these two minerals.
Lapis Lazuli
Lapis Lazuli (aggregate of Lazurite, Calcite, and Pyrite)
Amethyst (Tumbled/Weathered Quartz)
Amethyst (SiO2 with iron impurities)
Dyed Purple Agate
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Silver (Native or Alloyed)
Ag (Argentum)
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Conglomerate
Conglomerate (clastic sedimentary rock)
Chrome Diopside
Diopside (Magnesium Calcium Silicate) - CaMgSi2O6 + Cr
Diamond
Diamond (pure Carbon, C)
Eye Agate
Silicon Dioxide (SiO2) - Banded Chalcedony
Native Copper with Malachite and Chrysocolla
Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]
Blue Lace Agate
Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3)
Limonite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
Gold Nugget
Native Gold (Au)
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Sandstone
Arenite (SiO2 based with various mineral cements)
Shale
Shale (Lutite)
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
Ametrine
Ametrine (SiO2 - Silicon Dioxide with trace amounts of Iron)
Bismuth Crystal
Bismuth (Bi)
Polychrome Jasper
Silicon Dioxide (SiO2) with iron and other mineral inclusions
Azurite-Malachite (often called Azerite Malachite or Azurmalachite)
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Hematite
Iron (III) Oxide (Fe2O3)
Moissanite
Silicon Carbide (SiC)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Sandstone
Arenite (SiO2 based with quartz, feldspar, or lithic fragments)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz with Amethyst
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Gold Nugget
Native Gold (Au)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Gold Nugget
Native Gold (Au)
Amethyst (Tumbled)
Silicon Dioxide (SiO2) with iron impurities
Hematite
Iron(III) oxide (Fe2O3)
Pearl
Calcium Carbonate (CaCO3) + Conchiolin
Amazonite
Microcline (KAlSi3O8) with trace lead (Pb) impurities
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Glauconitic Sandstone (or Greensand)
Glauconitic Siliciclastic Rock (Containing (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)