Diamond
Carbon (C)
Category
Browse mineral with artificial coating specimens identified by the Rock Identifier community.
Diamond
Carbon (C)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Amethyst
Silicon dioxide (SiO2) with iron impurities
Carnelian Agate
Silicon Dioxide (SiO2)
Red Jasper
Silicon dioxide (SiO2) with Iron inclusions
Turquoise or Chrysocolla (Inlaid Jewelry)
Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate
Banded Agate
Cryptocrystalline Quartz (SiO2)
Rutilated Quartz
Rutile in Quartz (SiO2 with TiO2 inclusions)
Fluorite
Calcium Fluoride (CaF2)
Sodalite
Na8(Al6Si6O24)Cl2
Quartz (Milky Quartz with Iron Staining)
Silicon Dioxide (SiO2)
Diamond (or Cubic Zirconia)
Carbon (C) / Cubic Zirconium Dioxide (ZrO2)
Red Garnet (Pyrope or Almandine)
Magnesium aluminum silicate (Mg3Al2(SiO4)3) or Iron aluminum silicate (Fe3Al2(SiO4)3)
Amazonite
Potassium Feldspar (KAlSi3O8)
Quartz (Iron-stained or Rose variant)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Native Gold Nugget
Native Gold (Au)
Rhodochrosite
Manganese carbonate (MnCO3)
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
Aventurine
Silicon Dioxide (SiO2) with inclusions
Pyrite
Iron Disulfide (FeS2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite organic gemstone
Rhodochrosite
Manganese carbonate (MnCO3)
Fluorite
Calcium Fluoride (CaF2)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si)4O10(F,OH)2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Peridot
Olivine ((Mg, Fe)2SiO4)
Calcite (Banded Calcite / Onyx Marble)
Calcium Carbonate (CaCO3)
Celestine (or Celestite) on Matrix
Celestine (SrSO4)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Amazonite
Amazonite (KAlSi3O8)
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
Sunstone
Oligoclase (Plagioclase Feldspar) / (Ca,Na)(Al,Si)4O8
Bloodstone (Heliotrope)
Cryptocrystalline Quartz (SiO2) with inclusions of Hematite or Chlorite
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Rose Quartz
Rose Quartz (SiO2)
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)