Rock Identifier

Category

Mineral (Processed Alloy)

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

Sandstone (Arenite (SiO2 with various cementation agents)) — sedimentary

Sandstone

Arenite (SiO2 with various cementation agents)

Larimar (Blue Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Greenstone / Greenschist (Chlorite schist / Meta-basalt) — metamorphic

Greenstone / Greenschist

Chlorite schist / Meta-basalt

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Slag Glass (Amorphous Silica Glass (with metal oxide inclusions)) — Mineraloid / Industrial Waste

Slag Glass

Amorphous Silica Glass (with metal oxide inclusions)

Mineraloid / Industrial Waste

Gneiss with Quartz/Feldspar Vein (Quartz-Feldspathic Gneiss) — metamorphic

Gneiss with Quartz/Feldspar Vein

Quartz-Feldspathic Gneiss

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)

Granite (Granite (Felsic intrusive igneous rock)) — igneous

Granite

Granite (Felsic intrusive igneous rock)

Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock

Beaded Jewelry (Assorted Gemstones) (Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ) — Mineral, Jewelry

Beaded Jewelry (Assorted Gemstones)

Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ

Mineral, Jewelry

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Hematite Beads (Hematite (Fe2O3)) — Mineral

Hematite Beads

Hematite (Fe2O3)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Ferruginous Sandstone (Ironstone) (Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)) — sedimentary

Ferruginous Sandstone (Ironstone)

Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)

Serpentine (Serpentinite) (Antigorite, Lizardite, and Chrysotile: (Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine (Serpentinite)

Antigorite, Lizardite, and Chrysotile: (Mg,Fe)3Si2O5(OH)4

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

White Topaz (Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)) — mineral

White Topaz

Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Emerald in Schist (Raw/Tumbled) (Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities in Mica Schist) — metamorphic

Emerald in Schist (Raw/Tumbled)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities in Mica Schist

Serpentinite (Serpentinite (composed largely of serpentine minerals like antigorite, lizardite, or chrysotile)) — metamorphic

Serpentinite

Serpentinite (composed largely of serpentine minerals like antigorite, lizardite, or chrysotile)

Tufa (Vesicular Limestone) (Tufa (form of Calcium Carbonate, CaCO3)) — sedimentary

Tufa (Vesicular Limestone)

Tufa (form of Calcium Carbonate, CaCO3)

Vesicular Basalt with Peridot (Olivine) Inclusions (Mafic extrusive igneous rock with (Mg, Fe)2SiO4 phenocrysts) — igneous

Vesicular Basalt with Peridot (Olivine) Inclusions

Mafic extrusive igneous rock with (Mg, Fe)2SiO4 phenocrysts

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Picture Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with impurities

Petrified Wood (Silicified Wood (primarily Chalcedony or Quartz, SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily Chalcedony or Quartz, SiO2)

Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

River Pebble (Quartzite/Siltstone mixture) (Silicon Dioxide (SiO2) mixture with varied clastic minerals) — sedimentary/metamorphic

River Pebble (Quartzite/Siltstone mixture)

Silicon Dioxide (SiO2) mixture with varied clastic minerals

sedimentary/metamorphic

River Rock / Stream Pebble (Fluvial Clast / Rounded Sedimentary Particle) — Sedimentary Rock (possibly composed of various minerals)

River Rock / Stream Pebble

Fluvial Clast / Rounded Sedimentary Particle

Sedimentary Rock (possibly composed of various minerals)

Gold Nugget (Gold (Au)) — mineral

Gold Nugget

Gold (Au)

Tiger's Eye (Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)) — Mineral

Tiger's Eye

Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)

Ruby in Zoisite (Anyolite) — metamorphic

Ruby in Zoisite

Anyolite

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Aventurine Quartz (Silicon Dioxide (SiO2) with inclusions (typically Fuchsite/Mica)) — metamorphic

Aventurine Quartz

Silicon Dioxide (SiO2) with inclusions (typically Fuchsite/Mica)

Magnetite / Hematite (Iron Ore Pebble) (Fe3O4 (Magnetite) / Fe2O3 (Hematite)) — mineral

Magnetite / Hematite (Iron Ore Pebble)

Fe3O4 (Magnetite) / Fe2O3 (Hematite)

Dyed Blue Agate (Silicon dioxide (SiO2) with artificial pigment) — mineral

Dyed Blue Agate

Silicon dioxide (SiO2) with artificial pigment

Tumbled white quartz or quartzite pebble (Quartz (SiO₂), possibly massive quartzite) — mineral

Tumbled white quartz or quartzite pebble

Quartz (SiO₂), possibly massive quartzite

Tumbled Milky Quartz with Iron Inclusions (Silicon Dioxide (SiO2)) — mineral

Tumbled Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)