Chalcopyrite (Peacock Ore)
Copper Iron Sulfide (CuFeS2)
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Chalcopyrite (Peacock Ore)
Copper Iron Sulfide (CuFeS2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Blue Sapphire
Corundum (Al2O3)
Diamond
Pure Carbon (C)
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2)
Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
Ferruginous Quartzite (Red Chert/Jasper-like)
Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Diamond
Diamond (Pure Carbon, C)
Diamond (Green tinted)
Carbon (C) with trace impurities or lattice defects
Soapstone (Talc Schist)
Steatite
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Clear Quartz (Crystal Quartz)
Silicon Dioxide (SiO2)
Milk Quartz (River Pebble)
Quartz (Silicon Dioxide, SiO2)
Fluorite (often referred to casually as 'Fluorspar' in industrial contexts)
Fluorite (CaF2)
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])
Schist
N/A (a rock type, not a mineral formula)
Aquamarine
Beryl (Be3Al2Si6O18)
Garnet (almandine or pyrope variety)
Silicate mineral Group: (Fe, Mg, Mn, Ca)3(Al, Fe, Cr)2(SiO4)3
Diamond
Carbon (C)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Iron Meteorite
Siderite (Fe, Ni)
Diamond
Carbon (C)
Diamond (Faceted)
Diamond (Carbon, C)
Cubic Zirconia (Simulated Diamond)
Zirconium Dioxide (ZrO2)
Lepidolite with Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Peridotite (with Olivine and Pyroxene)
Ultramafic Magmatic Rock (Primary minerals: (Mg, Fe)2SiO4 and (Ca, Mg, Fe)2Si2O6)
Azurite Geode
Azurite (Cu3(CO3)2(OH)2)
Quartz
Quartz (SiO2)
Ruby
Corundum (Al2O3:Cr)
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Diamond
C (Carbon)
Diamond (Faceted)
Carbon (C) - Diamond
Rough Diamond
Native Carbon (C)
Diamond (in a jewelry setting)
Cubic Carbon (C)
Botryoidal Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Diamond (as featured in jewelry)
Diamond (C - pure carbon)