Rock Identifier

Category

Mineralogical Specimen

Browse mineralogical specimen specimens identified by the Rock Identifier community.

Learn about Mineralogical Specimen in the encyclopedia

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

White Beryl

Smoky Quartz

Clear Obsidian

Goshenite Crystal

Goshenite Crystal

Magnetite

Crocoite

Labradorite ((Ca, Na)(Al, Si)4O8) — mineral

Labradorite

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

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Banded Sedimentary Rock (Stratified Siliciclastic / Arenite or Siltstone with Mineral Bands) — sedimentary

Banded Sedimentary Rock

Stratified Siliciclastic / Arenite or Siltstone with Mineral Bands

Jasper (Silicon Dioxide (SiO2) with impurities, Microcrystalline Quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) with impurities, Microcrystalline Quartz

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Amethyst (Quartz (SiO2)) — gemstone

Amethyst

Quartz (SiO2)

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Amethyst (Quartz (SiO2)) — mineral

Amethyst

Quartz (SiO2)

Porphyritic Basalt or Porphyry (Porphyritic Igneous Rock) — igneous

Porphyritic Basalt or Porphyry

Porphyritic Igneous Rock

Aquamarine (Beryl) (Beryllium Aluminum Silicate - Be3Al2Si6O18) — gemstone

Aquamarine (Beryl)

Beryllium Aluminum Silicate - Be3Al2Si6O18

Quartz with Feldspar and Mica (Pegmatite Fragment) (Granitic Pegmatite) — igneous

Quartz with Feldspar and Mica (Pegmatite Fragment)

Granitic Pegmatite

Chalcopyrite on Quartz (CuFeS2 (Chalcopyrite) with SiO2 (Quartz)) — mineral

Chalcopyrite on Quartz

CuFeS2 (Chalcopyrite) with SiO2 (Quartz)

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

Quartz (Vein Quartz / Milky Quartz)

Silicon Dioxide (SiO2)

Amazonite (Microcline Feldspar) (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Amazonite (Microcline Feldspar)

KAlSi3O8 (Potassium Aluminum Silicate)

Carnelian Agate (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartz Vein in Metamorphic Rock (Quartz-veined Schist or Gneiss) — metamorphic

Quartz Vein in Metamorphic Rock

Quartz-veined Schist or Gneiss

Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Chalcedony Nodule / Agate (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony Nodule / Agate

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Peach/Pink Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Peach/Pink Variety)

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz), SiO2) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Limonite Geode / Ironstone Concretion (Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)) — sedimentary

Limonite Geode / Ironstone Concretion

Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)

Quartz with Tourmaline (Silicon Dioxide (SiO2) with complex cyclosilicate inclusions) — mineral

Quartz with Tourmaline

Silicon Dioxide (SiO2) with complex cyclosilicate inclusions

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz-bearing Pegmatite with Metallic Sulfides (Pegmatite / Quartz-Feldspar Matrix with Pyrite and Mica) — igneous

Quartz-bearing Pegmatite with Metallic Sulfides

Pegmatite / Quartz-Feldspar Matrix with Pyrite and Mica

Ironstone / Weathered Hematite (Iron oxide-rich sedimentary rock with Goethite/Hematite) — sedimentary

Ironstone / Weathered Hematite

Iron oxide-rich sedimentary rock with Goethite/Hematite

Quartz Geode or Vein Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz Geode or Vein Quartz

Silicon Dioxide (SiO2)

Tourmalinated Quartz (Silicon Dioxide with Tourmaline inclusions (SiO2 + Na(Fe3Al6)(Al5Si6O18)(BO33)(OH4))) — mineral

Tourmalinated Quartz

Silicon Dioxide with Tourmaline inclusions (SiO2 + Na(Fe3Al6)(Al5Si6O18)(BO33)(OH4))

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Green Jasper / Metavesuvianite-bearing rock (Silica-rich microcrystalline quartz aggregate / Green Jasper) — igneous

Green Jasper / Metavesuvianite-bearing rock

Silica-rich microcrystalline quartz aggregate / Green Jasper

Chrysocolla in Chalcedony (Gem Silica) (Hydrated copper phyllosilicate and silicon dioxide (SiO2 with (Cu,Al)2H2Si2O5(OH)4)) — mineral

Chrysocolla in Chalcedony (Gem Silica)

Hydrated copper phyllosilicate and silicon dioxide (SiO2 with (Cu,Al)2H2Si2O5(OH)4)

Komatiite Drill Core (Ultramafic Volcanic Rock (Spinifex Texture)) — igneous

Komatiite Drill Core

Ultramafic Volcanic Rock (Spinifex Texture)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Quartz pebble with a conchoidal chip (Silicon dioxide (SiO2)) — mineral

Quartz pebble with a conchoidal chip

Silicon dioxide (SiO2)

Jasper (Silicon dioxide (Microcrystalline quartz, SiO2)) — mineral

Jasper

Silicon dioxide (Microcrystalline quartz, SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Amethyst (Silicon Dioxide (Quartz variety), SiO2) — mineral

Amethyst

Silicon Dioxide (Quartz variety), SiO2