Rock Identifier

Category

Mineral (Man Made Composite)

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

Malachite (Copper carbonate hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper carbonate hydroxide, Cu2CO3(OH)2

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (SiO2 with Fe2O3 oxides)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (SiO2 with Fe2O3 oxides)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Limonite Concretion (Goonie or Rattlestone) (Limonite (FeO(OH)·nH2O)) — sedimentary

Limonite Concretion (Goonie or Rattlestone)

Limonite (FeO(OH)·nH2O)

Turquoise (Turquoise (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Note: Item is not a geological specimen (Homo sapiens (Dermal Appendage: Pilus)) — Organic / Biological

Note: Item is not a geological specimen

Homo sapiens (Dermal Appendage: Pilus)

Organic / Biological

Quartz (Milky/Rose variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Rose variety)

Silicon Dioxide (SiO2)

Rainbow Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Lapis Lazuli (in Matrix) (Lazurite-bearing Metamorphic Rock (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2) — metamorphic

Lapis Lazuli (in Matrix)

Lazurite-bearing Metamorphic Rock (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Chalcedony (River Stone) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (River Stone)

Microcrystalline Quartz (SiO2)

Industrial Diamond (Bort or Boart) (Diamond (pure Carbon, C)) — mineral

Industrial Diamond (Bort or Boart)

Diamond (pure Carbon, C)

Quartz Geode (Silicon Dioxide (SiO2) in a concretion) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a concretion

Sandstone (Arenite (Clastic Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Clastic Sedimentary Rock)

Ironstone Concretion (Limonite/Goethite) (Ferruginous Sandstone or Limonite (FeO(OH)·nH2O)) — sedimentary

Ironstone Concretion (Limonite/Goethite)

Ferruginous Sandstone or Limonite (FeO(OH)·nH2O)

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)

Turquoise (with Hematite) (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise (with Hematite)

CuAl6(PO4)4(OH)8·4H2O

Limonite (Ironstone) (Hydrous ferric oxides (FeO(OH)·nH2O)) — mineral

Limonite (Ironstone)

Hydrous ferric oxides (FeO(OH)·nH2O)

Quartz Druze (Silicon Dioxide (SiO2)) — mineral

Quartz Druze

Silicon Dioxide (SiO2)

Rutilated Quartz (likely Citrine or Smoky Quartz with Rutile inclusions) (SiO2 with TiO2 inclusions (Quartz with Rutile)) — Mineral

Rutilated Quartz (likely Citrine or Smoky Quartz with Rutile inclusions)

SiO2 with TiO2 inclusions (Quartz with Rutile)

Limonite/Ironstone (Limonite (FeO(OH)·nH2O)) — mineral

Limonite/Ironstone

Limonite (FeO(OH)·nH2O)

Greenstone (Metabasalt / Chlorite Schist) — metamorphic

Greenstone

Metabasalt / Chlorite Schist

Granite (Granite) — igneous

Granite

Granite

Educational Geologic Collection (Mixed Mineral and Rock Collection (Various compositions)) — mineral

Educational Geologic Collection

Mixed Mineral and Rock Collection (Various compositions)

Apatite (Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))) — mineral

Apatite

Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))

Sandstone (specifically Picture Sandstone or Wonderstone) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (specifically Picture Sandstone or Wonderstone)

Arenite (composed primarily of SiO2)

Tree Agate (Silicon dioxide (SiO2)) — Mineral

Tree Agate

Silicon dioxide (SiO2)

Covellite (Covellite (CuS)) — mineral

Covellite

Covellite (CuS)

Schist (Micaceous) (Mica Schist) — metamorphic

Schist (Micaceous)

Mica Schist

Banded Gneiss (Gneiss (variable mineral composition)) — metamorphic

Banded Gneiss

Gneiss (variable mineral composition)

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

Fluorite (Fluorite (CaF₂)) — mineral

Fluorite

Fluorite (CaF₂)

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

Amygdaloidal Basalt

Amygdaloidal Mafic Volcanic Rock (Basalt)

Kambaba Jasper (Crocodile Jasper) (Stromatolitic Rhyolite/Jasper (SiO2)) — sedimentary

Kambaba Jasper (Crocodile Jasper)

Stromatolitic Rhyolite/Jasper (SiO2)

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Amygdaloidal Basalt (Vesicular-Amygdaloidal Basalt (Mafic Extrusive)) — igneous

Amygdaloidal Basalt

Vesicular-Amygdaloidal Basalt (Mafic Extrusive)

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Fluorite (Purple variety) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Purple variety)

Calcium Fluoride (CaF2)

Malachite (Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)) — mineral

Malachite

Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)

Fluorite (Rainbow or Multi-colored Fluorite) (Fluorite (Calcium Fluoride - CaF2)) — mineral

Fluorite (Rainbow or Multi-colored Fluorite)

Fluorite (Calcium Fluoride - CaF2)

Quartz Geode (with possible Manganese or Goethite coating) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (with possible Manganese or Goethite coating)

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)