Granite
Granite (Felsic Plutonic Rock)
igneous
Category
Mineral (Man Made Aura Treatment)
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Granite (Pegmatitic)
Phaneritic Felsic Igneous Rock
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Obsidian
Volcanic Glass (Amorphous SiO2)
igneous
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Natural or Cultured Pearl
Calcium Carbonate (Aragonite and Conchiolin), CaCO3
Mineral (Organic)
Chrysocolla in Malachite
Cu2CO3(OH)2 (Malachite) / Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
mineral
Pearl (Biogenic Mineraloid)
Calcium carbonate (Aragonite) and Conchiolin, CaCO3
mineral
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)
mineral
Aragonite (specifically Mexican Marbled Onyx)
Aragonite (Calcium Carbonate, CaCO3)
mineral
Moonstone
Orthoclase Feldspar (formula: (K,Na)AlSi3O8)
mineral
Pearl (with Peridot)
Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4
mineral
Petrified Wood (Silicified Wood)
Silicified Paleoflora (mainly Quartz, SiO2)
metamorphic
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Sunstone
Aventurine Feldspar (Plagioclase Feldspar with inclusions)
mineral
Banded Calcite (often commercially sold as 'Mexican Onyx' or 'Honey Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Diamond (as set in a metal alloy ring)
Diamond (Pure Carbon, C)
mineral
Pearl (Biogenic)
Nacre / Calcium Carbonate (CaCO3)
mineral
Diamond
Carbon (C)
mineral
Sea Shell (Fighting Conch Fragment)
Calcium Carbonate (CaCO3) - Strombus alatus fragment
sedimentary (biogenic)
Diamond in Kimberlite
Diamond (C in Kimberlite Matrix)
igneous
Granite
Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper Marble
Silicon Dioxide (SiO2) with Impurities
sedimentary
Diamond
Diamond (pure Carbon, C)
mineral
Limonite (Iron Ore)
Hydrous Iron Oxide (goethite, lepidocrocite)
Mineral
Chert (Nodule/Pebble)
Chert (Silicon Dioxide, SiO2)
sedimentary
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Red/Brown Variety)
Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)
sedimentary
Bismuth Crystal
Bismuth (Bi)
mineral
Pyrite
Iron Disulfide (FeS2)
Mineral
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Granite
Granite (a common rock type, not a single mineral with a formula. Composed primarily of quartz, feldspar, and mica/amphibole).
igneous
Chalcanthite (Likely Synthetic/Lab-Grown)
Hydrated copper(II) sulfate (CuSO4·5H2O)
mineral
Granite
Phaneritic Plutonic Felsic Rock
igneous
Goldstone
Not a natural mineral or rock. It is an ornamental glass.
Manufactured Glass (Simulant)
Native Silver
Silver (Ag)
mineral
Banded Sandstone
Arenite with Liesegang banding
sedimentary