Rock Identifier

Category

Mineral (Processed Alloy)

Browse mineral (processed alloy) specimens identified by the Rock Identifier community.

Gold Ore in Quartz/Schist (Auriferous Quartz and Sulfide-bearing Schist) — Metamorphic/Igneous (Hydrothermal)

Gold Ore in Quartz/Schist

Auriferous Quartz and Sulfide-bearing Schist

Metamorphic/Igneous (Hydrothermal)

Gneiss (High-grade Metamorphic Gneiss) — metamorphic

Gneiss

High-grade Metamorphic Gneiss

Red Aventurine / Orange Quartzite (Silicon Dioxide (SiO2) with hematite/goethite inclusions) — metamorphic

Red Aventurine / Orange Quartzite

Silicon Dioxide (SiO2) with hematite/goethite inclusions

Ferruginous Quartz (Silicon Dioxide (SiO2) with Iron Oxide inclusions (Hematite/Goethite)) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions (Hematite/Goethite)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Fuchsite (Chrome-bearing Muscovite [K(Al,Cr)2(AlSi3O10)(OH)2]) — mineral

Fuchsite

Chrome-bearing Muscovite [K(Al,Cr)2(AlSi3O10)(OH)2]

Shark Tooth Fossil (Carcharhiniformes or Lamniformes (order level fossil)) — fossil

Shark Tooth Fossil

Carcharhiniformes or Lamniformes (order level fossil)

Banded Agate (Polished Slice) (Chalcedony (cryptocrystalline Quartz), SiO2) — mineral

Banded Agate (Polished Slice)

Chalcedony (cryptocrystalline Quartz), SiO2

Quartz / Common Gravel (Silicon Dioxide (SiO2)) — mineral

Quartz / Common Gravel

Silicon Dioxide (SiO2)

Microcline Feldspar (KAlSi3O8) — mineral

Microcline Feldspar

KAlSi3O8

$Jasper pebble with vein quartz cross-cutting fractures (Microcrystalline Quartz (SiO2) with iron oxide inclusions) — sedimentary$

Jasper pebble with vein quartz cross-cutting fractures

Microcrystalline Quartz (SiO2) with iron oxide inclusions

Hematite Nodule (Hematite (Fe2O3)) — mineral

Hematite Nodule

Hematite (Fe2O3)

Dumortierite Quartz (Dumortierite in Quartz (SiO2 with Al7BO3(SiO4)3(O,OH)3)) — mineral

Dumortierite Quartz

Dumortierite in Quartz (SiO2 with Al7BO3(SiO4)3(O,OH)3)

Quartz (Yellow/Iron-stained Quartzite or Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Yellow/Iron-stained Quartzite or Chalcedony)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Ocean Jasper (SiO2 (Silicon Dioxide with impurities)) — mineral

Ocean Jasper

SiO2 (Silicon Dioxide with impurities)

Quartz (Common Quartz/Quartzite) (Silicon Dioxide (SiO2)) — mineral

Quartz (Common Quartz/Quartzite)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Beryl in Quartz Matrix (Beryllium Aluminum Silicate (Be3Al2Si6O18)) — mineral

Beryl in Quartz Matrix

Beryllium Aluminum Silicate (Be3Al2Si6O18)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Lazulite (Magnesium Aluminum Phosphate Hydroxide (MgAl2(PO4)2(OH)2)) — mineral

Lazulite

Magnesium Aluminum Phosphate Hydroxide (MgAl2(PO4)2(OH)2)

Red calcite (Calcite (CaCO₃), likely iron- or manganese-colored) — mineral

Red calcite

Calcite (CaCO₃), likely iron- or manganese-colored

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Barite (Barium Sulfate (BaSO4)) — mineral

Barite

Barium Sulfate (BaSO4)

Eye Agate (Silicon Dioxide (SiO2) with impurities) — mineral

Eye Agate

Silicon Dioxide (SiO2) with impurities

Blue Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Blue Calcite

Calcite (Calcium Carbonate, CaCO3)

Carborundum (Silicon Carbide) (Silicon Carbide (SiC)) — mineral

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with iron oxide inclusions/staining (Limonite/Hematite)) — Mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with iron oxide inclusions/staining (Limonite/Hematite)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Ferruginous Quartz (Iron-stained Quartz (SiO2 with Fe2O3 impurities)) — mineral

Ferruginous Quartz

Iron-stained Quartz (SiO2 with Fe2O3 impurities)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz with Iron Staining (Silicon Dioxide (SiO2) with FeOx inclusions) — mineral

Quartz with Iron Staining

Silicon Dioxide (SiO2) with FeOx inclusions

Carnelian Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Carnelian Agate

Chalcedony (Silicon Dioxide, SiO2)

Cubic Zirconia (Simulated Diamond) (Zirconium dioxide (ZrO2)) — mineral

Cubic Zirconia (Simulated Diamond)

Zirconium dioxide (ZrO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Dyed Blue Agate (Silicon Dioxide (SiO2)) — Mineral

Dyed Blue Agate

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)