Rock Identifier

Category

Mineral Specimen

Browse mineral specimen specimens identified by the Rock Identifier community.

Learn about Mineral Specimen in the encyclopedia

Emerald in Matrix

Emerald in Matrix

Aquamarine Matrix

Aquamarine Matrix

Morganite Crystal

Morganite Crystal

Emerald Crystal

Emerald Crystal

Aquamarine Crystal

Aquamarine Crystal

Mushroom Tourmaline

Mushroom Tourmaline

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Rough Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Amethyst Quartz Cluster (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst Quartz Cluster

Silicon Dioxide (SiO2) with iron impurities

Green Kyanite (Kyanite (Al2SiO5)) — mineral

Green Kyanite

Kyanite (Al2SiO5)

Fuchsite (Chromian Muscovite - K(Al,Cr)2(AlSi3O10)(OH)2) — mineral

Fuchsite

Chromian Muscovite - K(Al,Cr)2(AlSi3O10)(OH)2

Red Jasper (Silicon dioxide (SiO2) with hematite (Fe2O3) inclusions) — mineral

Red Jasper

Silicon dioxide (SiO2) with hematite (Fe2O3) inclusions

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Native Copper (Native Copper (Cu)) — mineral

Native Copper

Native Copper (Cu)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Sugilite

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

Sunstone (Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)) — mineral

Sunstone

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

Milky Quartz with Matrix (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Matrix

Quartz (Silicon Dioxide, SiO2)

Olivine (Peridot) (Olivine Group (Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

Olivine Group (Mg,Fe)2SiO4

Olivine (Peridot when gem-quality) (Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)) — mineral

Olivine (Peridot when gem-quality)

Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)

Red Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Red Obsidian

Volcanic Glass (Amorphous SiO2)

Citrine (Silicon Dioxide (SiO₂)) — mineral

Citrine

Silicon Dioxide (SiO₂)

Botryoidal Quartz Cluster (Druzy Stalactitic Quartz) (Silicon Dioxide (SiO2)) — mineral

Botryoidal Quartz Cluster (Druzy Stalactitic Quartz)

Silicon Dioxide (SiO2)

Yellow Calcite (Banded) (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite (Banded)

Calcium Carbonate (CaCO3)

Iron-rich quartzite or weathered ironstone (Quartzite dominated by quartz (SiO₂), with iron oxides/hydroxides such as hematite and goethite) — metamorphic

Iron-rich quartzite or weathered ironstone

Quartzite dominated by quartz (SiO₂), with iron oxides/hydroxides such as hematite and goethite

Schorl (Black Tourmaline) in Quartz and Feldspar (NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)) — mineral

Schorl (Black Tourmaline) in Quartz and Feldspar

NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Muscovite Mica (Muscovite - KAl2(AlSi3O10)(F,OH)2) — mineral

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(F,OH)2

Emerald (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — mineral

Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Aquamarine (Beryllium Aluminum Silicate (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryllium Aluminum Silicate (Be3Al2Si6O18)

Epidote with Quartz (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote with Quartz

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Orange Calcite (Calcite (CaCO3)) — Mineral

Orange Calcite

Calcite (CaCO3)

Granite (Leucogranite) (Felsic Plutonic Rock (Granite)) — igneous

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Amazonite in Pegmatite Matrix with Smoky Quartz (K(AlSi3O8) - Microcline (var. Amazonite) with SiO2 (Quartz)) — Mineral

Amazonite in Pegmatite Matrix with Smoky Quartz

K(AlSi3O8) - Microcline (var. Amazonite) with SiO2 (Quartz)

Quartz Druze (Silicon Dioxide (SiO2)) — mineral

Quartz Druze

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Aquamarine (Tumbled) (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine (Tumbled)

Beryl (Be3Al2Si6O18)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Weathered feldspar-rich granite or pegmatite (Coarse-grained granitoid, chiefly quartz (SiO₂), potassium feldspar (KAlSi₃O₈), and plagioclase, with minor mica/iron oxides) — igneous

Weathered feldspar-rich granite or pegmatite

Coarse-grained granitoid, chiefly quartz (SiO₂), potassium feldspar (KAlSi₃O₈), and plagioclase, with minor mica/iron oxides

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Smoky Quartz with Iron Inclusions (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Green Tourmaline (Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)) — mineral

Green Tourmaline

Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)

Rough Sapphire (Corundum) (Corundum (Al2O3)) — mineral

Rough Sapphire (Corundum)

Corundum (Al2O3)

Tumbled amethyst (Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation) — mineral

Tumbled amethyst

Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation

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

Raw Sapphire / Corundum (Corundum (Al2O3 - Aluminium oxide)) — mineral

Raw Sapphire / Corundum

Corundum (Al2O3 - Aluminium oxide)

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

Quartz Crystal (Geode Fragment)

Silicon Dioxide (SiO2)