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

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) — mineral

Chrysocolla

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Quartz Crystal Fragment

Silicon Dioxide (SiO2)

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

Milky Quartz Pebble

Quartz (Silicon Dioxide - SiO2)

Chrysoprase (Silicon Dioxide with Nickel inclusions (SiO2)) — gemstone

Chrysoprase

Silicon Dioxide with Nickel inclusions (SiO2)

Marcasite on Agate / Sphalerite-Pyrite Agate Geode Slice (Marcasite (FeS2) / Pyrite on Quartz (SiO2)) — mineral

Marcasite on Agate / Sphalerite-Pyrite Agate Geode Slice

Marcasite (FeS2) / Pyrite on Quartz (SiO2)

Hypersthene (Enstatite-Ferrosilite series, (Mg,Fe)2Si2O6) — mineral

Hypersthene

Enstatite-Ferrosilite series, (Mg,Fe)2Si2O6

Orange Calcite (Calcite (CaCO3)) — mineral

Orange Calcite

Calcite (CaCO3)

Porphyritic Granite (or Porphyry) (Porphyritic Igneous Rock) — igneous

Porphyritic Granite (or Porphyry)

Porphyritic Igneous Rock

Jasper with Dendritic Inclusions (Microcrystalline Quartz (SiO2) with manganese or iron oxide inclusions) — sedimentary

Jasper with Dendritic Inclusions

Microcrystalline Quartz (SiO2) with manganese or iron oxide inclusions

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Turtle Stone / Septarian Nodule (Fragment) (Septarian Concretion (Calcite, Aragonite, and Limestone)) — sedimentary

Turtle Stone / Septarian Nodule (Fragment)

Septarian Concretion (Calcite, Aragonite, and Limestone)

Picture Jasper (SiO2 (Microcrystalline Quartz / Chalcedony with iron oxide impurities)) — sedimentary

Picture Jasper

SiO2 (Microcrystalline Quartz / Chalcedony with iron oxide impurities)

Yellow Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Yellow Jasper

Microcrystalline Quartz (SiO2)

Green Aventurine (Quartz with Fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with Fuchsite inclusions (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

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

Yellow Jasper

Quartz (Silicon Dioxide, SiO2 with impurities)

Malachite-Bearing Copper Ore (Cu2CO3(OH)2 (Malachite) in host rock) — mineral

Malachite-Bearing Copper Ore

Cu2CO3(OH)2 (Malachite) in host rock

Aragonite (Aragonite (CaCO3)) — mineral

Aragonite

Aragonite (CaCO3)

Lazulite Quartzite (Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)) — metamorphic

Lazulite Quartzite

Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)

Raw Quartz (Silicon Dioxide (SiO2)) — mineral

Raw Quartz

Silicon Dioxide (SiO2)

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Pink Mimbres Agate / Plume Agate (Silicon dioxide (SiO2) with mineral inclusions) — gemstone

Pink Mimbres Agate / Plume Agate

Silicon dioxide (SiO2) with mineral inclusions

Porphyritic Basalt or Spotted Pebble (Porphyritic volcanic rock with phenocrysts) — igneous

Porphyritic Basalt or Spotted Pebble

Porphyritic volcanic rock with phenocrysts

Jasper (Silicon Dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) microcrystalline quartz

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Sugilite (Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)) — mineral

Sugilite

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (Microcrystalline Quartz), SiO2) — mineral

Red Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Porphyritic Basalt or Porphyritic Andesite (Porphyritic Extrusive Igneous Rock) — igneous

Porphyritic Basalt or Porphyritic Andesite

Porphyritic Extrusive Igneous Rock

Yooperlite (Fluorescent Sodalite-bearing Syenite) (Syenite rich in sodalite) — igneous

Yooperlite (Fluorescent Sodalite-bearing Syenite)

Syenite rich in sodalite

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Fossiliferous Chert (Brachiopod/Bryozoan Fossil) (Microcrystalline quartz (SiO2) with fossil inclusions) — sedimentary

Fossiliferous Chert (Brachiopod/Bryozoan Fossil)

Microcrystalline quartz (SiO2) with fossil inclusions

Mother of Pearl (Nacre) / Shell Fragment (Biogenic Calcium Carbonate (Aragonite and Conchiolin)) — fossil

Mother of Pearl (Nacre) / Shell Fragment

Biogenic Calcium Carbonate (Aragonite and Conchiolin)

Shark Tooth Fossil (Vertebrate fossilized tooth) — fossil

Shark Tooth Fossil

Vertebrate fossilized tooth

Pebble (Clast (Lithic fragment / Quartzite pebble)) — sedimentary

Pebble

Clast (Lithic fragment / Quartzite pebble)

Amethyst (Quartz (Silicon Dioxide, SiO2)) — gemstone

Amethyst

Quartz (Silicon Dioxide, SiO2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Jasper and Epidote in Quartzite (Metamorphic rock containing microcrystalline quartz, epidote, and jasper) — metamorphic

Jasper and Epidote in Quartzite

Metamorphic rock containing microcrystalline quartz, epidote, and jasper