Rock Identifier

Category

Mineral (Man Made Composite)

Browse mineral (man made composite) specimens identified by the Rock Identifier community.

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

sedimentary
Fluorite (Fluorite (Calcium Fluoride, CaF2)) — Mineral

Fluorite

Fluorite (Calcium Fluoride, CaF2)

Mineral
Fossil Shark Tooth (Carcharodon sp. (likely Otodus or similar Lamniformes order)) — sedimentary

Fossil Shark Tooth

Carcharodon sp. (likely Otodus or similar Lamniformes order)

sedimentary
Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

mineral
Quartz with Mica inclusion (Silicon Dioxide (SiO2) with Muscovite/Biotite inclusions) — igneous

Quartz with Mica inclusion

Silicon Dioxide (SiO2) with Muscovite/Biotite inclusions

igneous
Sandstone (Ferruginous) (Arenite (Fe2O3 rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (Fe2O3 rich)

sedimentary
Milky Quartz with Chlorite inclusion (Silicon Dioxide (SiO2) with Chlorite group inclusions) — mineral

Milky Quartz with Chlorite inclusion

Silicon Dioxide (SiO2) with Chlorite group inclusions

mineral
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite) (Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)) — mineral

Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)

Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)

mineral
Quartz (likely tumbled or naturally water-worn) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely tumbled or naturally water-worn)

Quartz (SiO₂ - Silicon Dioxide)

Mineral
Blue Topaz (Al2SiO4(F,OH)2) — mineral

Blue Topaz

Al2SiO4(F,OH)2

mineral
Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

mineral
Orthoclase Feldspar (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

mineral
Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

mineral
Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

metamorphic
Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

mineral
Sandstone (Sandstone (lithified arenite/wacke)) — Sedimentary Rock

Sandstone

Sandstone (lithified arenite/wacke)

Sedimentary Rock
Limonite (Iron Stone/Goethite) (Limonite (mixture of hydrated iron oxides, primarily Goethite: α-FeO(OH))) — mineral

Limonite (Iron Stone/Goethite)

Limonite (mixture of hydrated iron oxides, primarily Goethite: α-FeO(OH))

mineral
Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

sedimentary
Granite (Granite) — Igneous

Granite

Granite

Igneous
Goethite (Iron Ore) (Goethite (FeO(OH))) — mineral

Goethite (Iron Ore)

Goethite (FeO(OH))

mineral
Malachite (Copper carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

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

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Tan)

Silicon Dioxide (SiO2)

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

Quartz Pebble

Silicon Dioxide (SiO2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

mineral
Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

sedimentary
Quartz (Gravel Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

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

Quartz Pebble

Silicon Dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

metamorphic
Olivine-bearing Basalt / Scoria (Mafic Igneous Rock (primarily (Mg, Fe)2SiO4)) — igneous

Olivine-bearing Basalt / Scoria

Mafic Igneous Rock (primarily (Mg, Fe)2SiO4)

igneous
Quartz (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Quartz (Tumbled)

Silicon Dioxide (SiO2)

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

Quartz Pebble

Silicon Dioxide (SiO2)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

mineral
Quartz (Milky or Cloudy variety) (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz (Milky or Cloudy variety)

Quartz (Silicon Dioxide, SiO2)

mineral
Quartz Pebble (Silicon dioxide (SiO2)) — mineral

Quartz Pebble

Silicon dioxide (SiO2)

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

Quartz Pebble (with Iron Inclusions)

Silicon Dioxide (SiO2)

mineral
K2 Azurite Granite / K2 Stone (Granite (igneous rock) with Azurite inclusions (mineral)) — igneous

K2 Azurite Granite / K2 Stone

Granite (igneous rock) with Azurite inclusions (mineral)

igneous
Serpentinite (Serpentinite (composed primarily of Serpentine group minerals, e.g., Lizardite, Chrysotile, Antigorite)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, e.g., Lizardite, Chrysotile, Antigorite)

metamorphic
Serpentinite (Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)

metamorphic
Beryl (likely Emerald or Aquamarine in matrix) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (likely Emerald or Aquamarine in matrix)

Beryllium aluminum silicate (Be3Al2Si6O18)

mineral
Quartz Geode (Nodule) (Silicon Dioxide (SiO2)) — sedimentary or igneous

Quartz Geode (Nodule)

Silicon Dioxide (SiO2)

sedimentary or igneous