Granitic Pegmatite
Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Granitic Pegmatite
Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica
Granitic Pegmatite
Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)
Granite
Plutonic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
Rough Blue Sapphire
Corundum (Al2O3)
Basalt
Mafic Igneous Rock
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH,F,O)4)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
Smoky Quartz (Ferruginous Quartz)
Quartz (Silicon Dioxide, SiO2)
Schist
Mica Schist
Black Tourmaline (Schorl)
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
Red Sandstone
Arenite (Ferruginous Sandstone)
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Granite
Granitoid (dominated by Quartz and Feldspar)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Banded Iron Formation (BIF)
Banded Iron Formation (predominantly Hematite and Chert)
Garnet in Matrix (likely Almandine in Quartz/Mica Schist)
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock
Sandstone
Arenite (SiO2 principal)
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (composed primarily of serpentine group minerals like lizardite, antigorite, and chrysotile)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Native Copper Nugget
Native Copper (Cu)
Magnetite
Magnetite (Fe3O4)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Bauxite
Bauxite (Al(OH)3, AlO(OH))
Greenstone / Graywacke
Lithic Sandstone (Graywacke)
Yellow Quartz Pebble
SiO2 (Silicon Dioxide)
Garnet Schist
Almandine-bearing Mica Schist
Limestone
CaCO3 (principally Calcite)
Cubic Zirconia (in Jewelry)
Zirconium Dioxide (ZrO2)
Satin Spar (often sold as Selenite)
Gypsum (CaSO4·2H2O)
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
Banded Agate (Lace Agate)
Agate (Variety of Cryptocrystalline Quartz), SiO2
Quartz Pebble
Silicon Dioxide (SiO2)
Chalcedony Geode Part (Agate/Quartz)
Silicon Dioxide (SiO2)
Pink Quartz
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide / Cryptocrystalline Quartz (SiO2)
Diamond
Carbon (C)
Aquamarine
Beryl (Be3Al2Si6O18)
Agate
Silicon dioxide (SiO2)
Yellow Ochre / Limonite
Limonite (FeO(OH)·nH2O)
Diamond
Natural Diamond (Carbon, C)