Rock Identifier

Category

Mineral (Extraterrestrial)

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

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic Volcanic Rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Sandstone (Graywacke) (Clastic Sedimentary Rock (Lithic Sandstone)) — sedimentary

Sandstone (Graywacke)

Clastic Sedimentary Rock (Lithic Sandstone)

Rock Salt (Halite) (Halite (Sodium Chloride, NaCl)) — mineral

Rock Salt (Halite)

Halite (Sodium Chloride, NaCl)

Quartz Chip (Silicon Dioxide (SiO2)) — mineral

Quartz Chip

Silicon Dioxide (SiO2)

Snowflake Obsidian (Volcanic Glass with Spherulitic Cristobalite (SiO2)) — igneous

Snowflake Obsidian

Volcanic Glass with Spherulitic Cristobalite (SiO2)

Amazonite (likely mixed with other feldspars/minerals) (Amazonite is a variety of Microcline, which is a tectosilicate mineral, formula KAISi3O8. The mixed beads could include other feldspars or quartz.) — Mineral

Amazonite (likely mixed with other feldspars/minerals)

Amazonite is a variety of Microcline, which is a tectosilicate mineral, formula KAISi3O8. The mixed beads could include other feldspars or quartz.

Chakra Stone Tower (Composite Multi-Mineral) (Crystalline Silicon Dioxide composite (SiO2) with various inclusions) — mineral

Chakra Stone Tower (Composite Multi-Mineral)

Crystalline Silicon Dioxide composite (SiO2) with various inclusions

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

Quartz (Granular)

Silicon Dioxide (SiO2)

Epidosite (Epidote-rich rock) (Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))) — metamorphic

Epidosite (Epidote-rich rock)

Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

Basalt (Black Beach Pebble) (Basalt) — igneous

Basalt (Black Beach Pebble)

Basalt

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone (lithic) (Lithic Wacke / Arenite) — sedimentary

Sandstone (lithic)

Lithic Wacke / Arenite

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Banded Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Septarian Nodule (Septarian Concretion (CaCO3 with Siderite/Limonite streaks)) — sedimentary

Septarian Nodule

Septarian Concretion (CaCO3 with Siderite/Limonite streaks)

Quartz Druzy on Matrix (likely Agate or Jasper) (Silicon Dioxide (SiO2) with various mineral inclusions) — mineral

Quartz Druzy on Matrix (likely Agate or Jasper)

Silicon Dioxide (SiO2) with various mineral inclusions

Quartz with Inclusions (Silicon Dioxide (SiO2) with various mineral inclusions) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2) with various mineral inclusions

Granite Pebble (Granite (a plutonic igneous rock composed primarily of quartz, feldspar, and mica/amphibole)) — igneous

Granite Pebble

Granite (a plutonic igneous rock composed primarily of quartz, feldspar, and mica/amphibole)

Fossilized Coprolite (Coprolite (fossilized feces)) — sedimentary

Fossilized Coprolite

Coprolite (fossilized feces)

Granite (Granite) — Igneous

Granite

Granite

Man-made Synthetic Material (Costume Faux Fur) (Synthetic Polymer (Polyester/Acrylic)) — not a rock

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Peach Aventurine (Silicon Dioxide (SiO2) with inclusions) — metamorphic

Peach Aventurine

Silicon Dioxide (SiO2) with inclusions

Green Moss Agate (Silicon Dioxide (SiO2) with Mineral Inclusions) — sedimentary

Green Moss Agate

Silicon Dioxide (SiO2) with Mineral Inclusions

Green Apophyllite and Stilbite on Quartz Cluster (Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)) — Mineral

Green Apophyllite and Stilbite on Quartz Cluster

Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)

Garnet (Almandine) (Almandine Fe3Al2(SiO4)3) — mineral

Garnet (Almandine)

Almandine Fe3Al2(SiO4)3

Amazonite (Amazonite (KAlSi3O8 - Microcline)) — mineral

Amazonite

Amazonite (KAlSi3O8 - Microcline)

Granite (Granite (Alkali-feldspar granite)) — igneous

Granite

Granite (Alkali-feldspar granite)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Granitic Pegmatite (Pegmatitic Granite) — igneous

Granitic Pegmatite

Pegmatitic Granite

Quartz (specifically Milky Quartz/Quartzite) (Silicon Dioxide (SiO2)) — Mineral

Quartz (specifically Milky Quartz/Quartzite)

Silicon Dioxide (SiO2)

Pyrite in Quartz (FeS2 (Iron Pyrite) with SiO2 (Quartz)) — Mineral/Igneous/Hydrothermal

Pyrite in Quartz

FeS2 (Iron Pyrite) with SiO2 (Quartz)

Mineral/Igneous/Hydrothermal

Quartz (small fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (small fragment)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Gneiss (Metamorphic Cobble) (Gneiss) — metamorphic

Gneiss (Metamorphic Cobble)

Gneiss

Blue Apatite (Apatite group (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

Blue Apatite (Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Quartz (Milky Quartz / Quartzite)

Silicon Dioxide (SiO2)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)