Pegmatite (with smoky quartz and tourmaline/biotite)
Pegmatitic Granite
igneous
Category
Mineral Like Industrial Smelting Waste
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Learn about Mineral Like Industrial Smelting Waste in the encyclopedia
View all →
Quartz with Mica inclusions (likely Iron-stained)
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Sandstone (lithic/quartz variant)
Clastic sedimentary rock (SiO2 predominant)
sedimentary
Schist
Mica Schist
metamorphic
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Banded Agate
Chalcedony / Silicon Dioxide (SiO2)
mineral
Agate
Agatized Chalcedony (SiO2)
mineral
Chalcedony (Common Opal variant)
Silicon dioxide (SiO2) with varying levels of hydration
mineral
Garnet (likely Almandine or Pyrope)
Garnet Group (Fe3Al2Si3O12 or Mg3Al2Si3O12)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Fossil brachiopod
Brachiopoda; likely a spiriferid or strophomenid brachiopod
fossil
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Turquoise and Hematite
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)
mineral
Green glassy slag or manufactured glass bead
Noncrystalline silicate glass; likely industrial glass/slag, not a true mineral
mineral
Pegmatite
Igneous Pegmatite (Quartz, Feldspar, Micas)
igneous
Raw Garnet Fragment
Nesosilicate Group (e.g., Almandine, Fe3Al2(SiO4)3)
mineral
Greenschist
Chlorite schist
metamorphic
Glauconitic Sandstone
Glauconitic Quartz Arenite (with K,Mg,Fe,Al silicate hydroxide)
sedimentary
Bauxite
Al2O3·2H2O (Aluminum Hydroxide)
sedimentary
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Quartz (Milky/Smoky variety on matrix)
Silicon Dioxide (SiO2)
mineral
Agate
Agate (Silicon Dioxide, SiO2)
mineral
Red Sandstone
Ferruginous Sandstone (SiO2 + Fe2O3)
sedimentary
Rough Sapphire (possibly Yellow/Green Corundum)
Corundum (Al2O3)
mineral
Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)
Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)
sedimentary
Botryoidal Chalcedony (Agate/Desert Rose Chalcedony)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Botryoidal Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz with Chert
Silicon Dioxide (SiO2)
mineral
Iron Meteorite
Iron-nickel alloy (e.g., Kamacite, Taenite)
Meteorite (extraterrestrial material)
Granitic Pegmatite
Granite (with coarse-grained Quartz, Feldspar, and Mica components)
igneous
Chalcanthite (Likely Synthetic/Lab-Grown)
Hydrated copper(II) sulfate (CuSO4·5H2O)
mineral
Diamond
Native Carbon (C)
mineral
Blue Sapphire (Raw/Tumbled Corundum)
Corundum (Aluminum Oxide, Al2O3 with Fe/Ti traces)
mineral
Schist
Mica Schist
metamorphic
Rough Diamond
Natural Diamond (Carbon, C)
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Sandstone (Pebble)
Sandstone (SiO2 dominated clastic sedimentary rock)
sedimentary
Agate (specifically a Thunderegg/Agate Nodule)
Cryptocrystalline Quartz (SiO2)
mineral
Sandstone with Iron Staining
Arenite (SiO2 with FeO(OH) impurities)
sedimentary