Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Alabaster
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Mica Schist with Garnet
Garnet-Mica Schist
Milky Quartz
Silicon Dioxide (SiO2)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Basalt (Black Beach Pebble)
Basalt
Pyrite
Iron Sulfide (FeS2)
Granite
Intrusive igneous rock
Granite
Intrusive Igneous Rock
Peacock Ore
Bornite (Cu5FeS4)
Amethyst Geode Fragment
Quartz (SiO2) with trace iron impurities
Caribbean Calcite
Calcite (CaCO3) with Aragonite (CaCO3)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Milky Quartz
Silicon Dioxide (SiO2)
Corundum (Ruby Variety)
Corundum (Al2O3)
Cloudy Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (SiO2)
Milky Quartz (Tumbled)
Silicon Dioxide (SiO2)
Potassium Feldspar
K-Feldspar (KAlSi3O8)
Quartz Crystal Point
Silicon Dioxide (SiO2)
Erythrite on Matrix
Cobalt Bloom (Co3(AsO4)2·8H2O)
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Granite
Felsic intrusive igneous rock
Granite
Phaneritic Felsic Igneous Rock
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Quartz in Host Rock
Silicon Dioxide (SiO2)
Sandstone Concretion
Sedimentary Concretion (Quartz sand bound by mineral cement)
Fossilized Bone Chunk
Permineralized Vertebrate Bone (indeterminant)
Jasper with Purple Fluorite or Chalcedony
Silicon Dioxide (SiO2) with mineral inclusions
Amazonite
Microcline (KAlSi3O8)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Quartz Druzy on Matrix
Silicon Dioxide (SiO2)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating