Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
White Sapphire
Corundum (Al2O3)
Agate
Silicon Dioxide (SiO2)
Blue Sapphire (Faceted)
Corundum (Al2O3)
Orange Calcite
Calcium Carbonate (CaCO3)
Chakra Tumbled Stone Set
Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
Synthetic Sapphire and Ion-X Glass
Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Aquamarine
Beryl (Be3Al2Si6O18)
Serpentine-rich rock (possibly lizardite/serpentinite)
Serpentinite, composed chiefly of serpentine-group minerals such as lizardite, antigorite, or chrysotile
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
Diamond in Kimberlite
Kimberlite Matrix with Carbon (Diamond)
Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
Diamond (or Cubic Zirconia simulant)
Carbon (C) or Zirconium Dioxide (ZrO2)
Raw Diamond (Rough Uncut)
Diamond (C - pure carbon)
Actinolite
Ca2(Mg,Fe)5Si8O22(OH)2
Pegmatite
Igneous Pegmatite (Quartz-Feldspar-Biotite)
Stilbite
Stilbite (Hydrated calcium sodium aluminum silicate, NaCa4[Al9Si27O72]·28H2O)
Raw amethyst quartz crystal
Quartz, silicon dioxide (SiO₂), purple variety amethyst
Likely raw garnet fragment
Garnet-group silicate, commonly almandine (Fe₃Al₂Si₃O₁₂)
Banded Sandstone (Differential Weathering)
Clastic Sedimentary Rock (primarily SiO2)
Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
Ruby / Pink Sapphire
Corundum (Al2O3 with Chromium impurities)
Likely blue calcite
Calcite, CaCO₃
Granite
Granite (Felsic Plutonic Rock)
Fluorite, Sodalite, and Rose Quartz collection
Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)
Peacock Ore
Bornite (Cu5FeS4) or Chalcopyrite treated with acid
Desert Rose
Gypsum (variety Selenite) or Barite: CaSO4 · 2H2O
Schist
Mica Schist
Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
Quartz (Milky or Smoky)
Silicon Dioxide (SiO2)
Pegmatite (Quartz and Feldspar with Dark Minerals)
Igneous Pegmatite
Unknown dark mineral fragment
Indeterminate; possibly a dark silicate mineral or slag-like geological fragment
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Ruby (Raw Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Sandstone
Arenite (SiO2 based)
Garnet (Pyrope-Almandine series)
Garnet Group, (Mg,Fe)3Al2Si3O12
Porphyritic Basalt
Basalt (Extrusive Igneous Rock)