Rock Identifier

Category

Mineral (Processed Alloy)

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

Asphalt (Bituminous Concrete) (Asphaltum / Bitumen-Aggregate Matrix) — Technonatural composite (often containing sedimentary/igneous aggregate)

Asphalt (Bituminous Concrete)

Asphaltum / Bitumen-Aggregate Matrix

Technonatural composite (often containing sedimentary/igneous aggregate)

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Gold Ore in Quartz (Auriferous Quartz (Au + SiO2)) — igneous

Gold Ore in Quartz

Auriferous Quartz (Au + SiO2)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Sandstone (Arenite (primarily composed of SiO2 - Silicon Dioxide)) — sedimentary

Sandstone

Arenite (primarily composed of SiO2 - Silicon Dioxide)

Serpentine Jade (New Jade/Bowenite) (Antigorite (Mg3Si2O5(OH)4)) — metamorphic

Serpentine Jade (New Jade/Bowenite)

Antigorite (Mg3Si2O5(OH)4)

Chrysanthemum Stone (Limestone with Celestine or Andalusite inclusions) — sedimentary

Chrysanthemum Stone

Limestone with Celestine or Andalusite inclusions

Gold Mineral (Native Gold (Au)) — mineral

Gold Mineral

Native Gold (Au)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Milky Quartz Vein with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Vein with Iron Staining

Silicon Dioxide (SiO2)

Wollastonite (Calcium Inosilicate Mineral, CaSiO3) — mineral

Wollastonite

Calcium Inosilicate Mineral, CaSiO3

Red Sandstone (Clastic Sandstone (typically Quartz-rich with Iron Oxide)) — sedimentary

Red Sandstone

Clastic Sandstone (typically Quartz-rich with Iron Oxide)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Coarse-grained Granite (Granitoid (KAlSi3O8 + SiO2 + NaAlSi3O8)) — igneous

Coarse-grained Granite

Granitoid (KAlSi3O8 + SiO2 + NaAlSi3O8)

Gold (Gold (Au)) — mineral

Gold

Gold (Au)

Yellow Quartz Pebble (Citrine Quartz / Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz Pebble (Citrine Quartz / Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Mixed Tumbled Rocks and Minerals Collection (Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)) — mineral

Mixed Tumbled Rocks and Minerals Collection

Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)

Druzy Quartz Geode (with Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz Geode (with Chalcedony)

Silicon Dioxide (SiO2)

Quartz with Hematite inclusions (Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)) — mineral

Quartz with Hematite inclusions

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)

Orange Calcite / Quartzite with Iron Staining (Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) with Iron Oxide impurities) — mineral

Orange Calcite / Quartzite with Iron Staining

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) with Iron Oxide impurities

Aquamarine (Beryl) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Aquamarine (Beryl)

Beryllium aluminum silicate (Be3Al2Si6O18)

Black Tourmaline in Quartz Matrix (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline in Quartz Matrix

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Pink and Green Tourmaline (Tumbled) (Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)) — mineral

Pink and Green Tourmaline (Tumbled)

Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Hematite Pebble (Hematite (Alpha Fe2O3)) — mineral

Hematite Pebble

Hematite (Alpha Fe2O3)

Aquamarine (Beryl (Be3Al2Si6O18 with iron impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Gold Flakes (Native Gold (Au)) — mineral

Gold Flakes

Native Gold (Au)

Galena (Lead(II) Sulfide (PbS)) — mineral

Galena

Lead(II) Sulfide (PbS)

Black Tourmaline (Schorl) (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline (Schorl)

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Slate (Foliated low-grade metamorphic rock) — metamorphic

Slate

Foliated low-grade metamorphic rock

Ferruginous Sandstone (Ironstone) (Arenite with Limonite/Goethite cement) — sedimentary

Ferruginous Sandstone (Ironstone)

Arenite with Limonite/Goethite cement

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Note: This is a Man-Made Object (Costume/Prop Patch) (Synthetic fiber and pigments (Cellulose/Plastic-based composite)) — Non-geological

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Serpentine ((Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine

(Mg,Fe)3Si2O5(OH)4

Aura Quartz (specifically Titanium Aura Quartz) (Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)) — mineral

Aura Quartz (specifically Titanium Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)

Diorite (Diorite (Intermediate Plutonic Rock)) — igneous

Diorite

Diorite (Intermediate Plutonic Rock)