Rock Identifier

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Mineralological Specimen

Browse mineralological specimen specimens identified by the Rock Identifier community.

Learn about Mineralological Specimen in the encyclopedia

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Emerald in Matrix

Emerald in Matrix

Morganite Crystal

Morganite Crystal

Aquamarine Matrix

Aquamarine Matrix

Emerald Crystal

Emerald Crystal

Aquamarine Crystal

Aquamarine Crystal

Mushroom Tourmaline

Mushroom Tourmaline

Smoky Quartz

Smoky Quartz

Clear Obsidian

Clear Obsidian

Goshenite Crystal

Goshenite Crystal

Magnetite

Magnetite

Crocoite

Crocoite

Elbaite

Elbaite

Amethyst (Quartz (SiO2)) — mineral

Amethyst

Quartz (SiO2)

mineral
Lake Superior Agate (Chalcedony (SiO2)) — sedimentary

Lake Superior Agate

Chalcedony (SiO2)

sedimentary
Quartz (Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

mineral
Tiger's Eye (Silicon Dioxide (Quartz pseudomorph after crocidolite)) — gemstone

Tiger's Eye

Silicon Dioxide (Quartz pseudomorph after crocidolite)

gemstone
Amethyst (Quartz (SiO2)) — gemstone

Amethyst

Quartz (SiO2)

gemstone
Waterworn Pebble / Quartzite (Metamorphic/Sedimentary rock fragment) — sedimentary

Waterworn Pebble / Quartzite

Metamorphic/Sedimentary rock fragment

sedimentary
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Jasper

Silicon Dioxide (SiO2) with impurities

sedimentary
Quartz (Raw / Unpolished) (Silicon Dioxide (SiO2)) — mineral

Quartz (Raw / Unpolished)

Silicon Dioxide (SiO2)

mineral
Desert Rose (Gypsum (CaSO4 · 2H2O) or Barite (BaSO4) rosette) — mineral

Desert Rose

Gypsum (CaSO4 · 2H2O) or Barite (BaSO4) rosette

mineral
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Epidote (Epidote (Ca2(Al, Fe)3(SiO4)3(OH))) — mineral

Epidote

Epidote (Ca2(Al, Fe)3(SiO4)3(OH))

mineral
Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Sunstone (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — gemstone

Sunstone

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

gemstone
Prehnite with Epidote and Quartz (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite with Epidote and Quartz

Prehnite (Ca2Al(AlSi3O10)(OH)2)

mineral
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

mineral
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Quartz-veined Basalt or Diabase Pebble (Igneous rock with hydrothermal quartz vein) — igneous

Quartz-veined Basalt or Diabase Pebble

Igneous rock with hydrothermal quartz vein

igneous
Bumblebee Jasper (Anhydrous Calcium Carbonate with Sulfur and Arsenic (Orpiment/Realgar)) — sedimentary

Bumblebee Jasper

Anhydrous Calcium Carbonate with Sulfur and Arsenic (Orpiment/Realgar)

sedimentary
Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

mineral
Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

mineral
Tangerine Quartz (Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)) — mineral

Tangerine Quartz

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

mineral
Chiastolite (Andalusite variety Chiastolite) — mineral

Chiastolite

Andalusite variety Chiastolite

mineral
Charlevoix Stone (Favosites alpenensis) — fossil

Charlevoix Stone

Favosites alpenensis

fossil
Blue Chalcedony Cube (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony Cube

Silicon Dioxide (SiO2)

mineral
Quartz (Iron-Stained / Yellow Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained / Yellow Quartz)

Silicon Dioxide (SiO2)

mineral
Citrine or Yellow Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Citrine or Yellow Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Chrysocolla (Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O

mineral
Strawberry Quartz (Silicon Dioxide (SiO2) with Hematite or Goethite inclusions) — mineral

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

mineral
Opal (Hydrated Silica (SiO2·nH2O)) — mineraloid

Opal

Hydrated Silica (SiO2·nH2O)

mineraloid
Strawberry Quartz (Quartz with Hematite inclusions (SiO2 + Fe2O3)) — mineral

Strawberry Quartz

Quartz with Hematite inclusions (SiO2 + Fe2O3)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Titanium Aura Quartz (Titanium-coated Silicon Dioxide (SiO2)) — mineral

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

mineral
Bumblebee Jasper (Calcite-bearing Volcanic Tuff containing Orpiment (As2S3) and Realgar (As4S4)) — sedimentary

Bumblebee Jasper

Calcite-bearing Volcanic Tuff containing Orpiment (As2S3) and Realgar (As4S4)

sedimentary
Ruby Zoisite (Anyolite (Zoisite with Ruby and Pargasite)) — metamorphic

Ruby Zoisite

Anyolite (Zoisite with Ruby and Pargasite)

metamorphic