Pegmatite (Granitic)
Granitic Pegmatite
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Pegmatite (Granitic)
Granitic Pegmatite
Sandstone
Arenite (primarily SiO2)
Muscovite Mica Schist
Metamorphic Rock (Muscovite-Biotite Schist)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Blue Apatite
Apatite Group (Ca5(PO4)3(F,Cl,OH))
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
Kimberlite
Kimberlite
Granite Pegmatite
Pegmatite (Quartz, Feldspar, Mica)
Carborundum
Silicon Carbide (SiC)
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Corundum (Sapphire/Ruby in Matrix)
Aluminium oxide (Al2O3)
Kaolinite (China Clay)
Kaolinite (Al2Si2O5(OH)4)
Amber Calcite
Calcium Carbonate (CaCO3)
Granitic Pegmatite
Granite Pegmatite (coarse-grained intrusive igneous rock)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Schist
Mica Schist
Ruby
Corundum (Aluminium Oxide with Chromium impurities, Al2O3:Cr)
Pegmatite (with Muscovite Mica and Quartz)
Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)
Amazonite pendant
Amazonite, a green variety of microcline feldspar (KAlSi₃O₈)
Tumbled amazonite
Amazonite, green microcline feldspar (KAlSi₃O₈)
Anthracite Coal
Anthracite (Carbon)
Orange Calcite
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 principal composition)
Tumbled amazonite (likely)
Amazonite, green microcline feldspar (KAlSi₃O₈)
Bauxite
Bauxite (mixture of Gibbiste Al(OH)3, Boehmite ̳-AlO(OH), and Diaspore ́-AlO(OH))
Sandstone (Ferruginous)
Arenite with Iron Oxides
Green Fluorite
Calcium Fluoride (CaF2)
Asphalt Conglomerate
Artificial Bituminous Conglomerate
Iron Meteorite
Iron-nickel alloy (primarily kamacite and taenite)
Quartz geode fragment
Mostly crystalline quartz (SiO₂), likely with chalcedony and minor iron-oxide staining
Fossilized bone fragment
Mineral-replaced vertebrate bone, commonly apatite [Ca₅(PO₄)₃(F,OH,Cl)]
Black Garnet (Melanite)
Andradite, Ca3Fe2(SiO4)3
Opalite
Synthetic Opalized Glass / Man-made Glass
Schist
Mica Schist
Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)
Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)
Orange Sapphire
Corundum (Al2O3 with trace elements)
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
Bicolor Quartz (Milk Quartz with Slag or Dark Inclusions)
Silicon Dioxide (SiO2) with impurities
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
Limonite (Iron Ore)
Limonite (̑FeO(OH)·nH₂O)
Tourmaline
Schorl (Complex boron silicate, NaFe3Al6(Si6O18)(BO3)3(OH)4)