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

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Likely weathered metallic mineral or slag fragment (Indeterminate; possibly iron-rich sulfide/oxide material or industrial slag) — mineral

Likely weathered metallic mineral or slag fragment

Indeterminate; possibly iron-rich sulfide/oxide material or industrial slag

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Copper Ore with Chalcocite (Copper sulfide (Cu2S) with associated copper-bearing minerals) — mineral

Copper Ore with Chalcocite

Copper sulfide (Cu2S) with associated copper-bearing minerals

Rough Diamond (or Herkimer Diamond Quartz) (Diamond (C) or Quartz (SiO2)) — mineral

Rough Diamond (or Herkimer Diamond Quartz)

Diamond (C) or Quartz (SiO2)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Quartz on Feldspar (Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)) — igneous

Quartz on Feldspar

Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)

Botryoidal Goethite (Goethite (α-Fe3+O(OH))) — mineral

Botryoidal Goethite

Goethite (α-Fe3+O(OH))

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

Smoky Quartz with Inclusions

Silicon Dioxide (SiO2)

Sapphirine in Matrix (Sapphirine (Mg,Al)8(Al,Si)6O20) — mineral

Sapphirine in Matrix

Sapphirine (Mg,Al)8(Al,Si)6O20

Iron (Hematite variety) (Iron (Fe) / Hematite (Fe2O3)) — mineral

Iron (Hematite variety)

Iron (Fe) / Hematite (Fe2O3)

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

Chalcedony Geode Fragment

Silicon Dioxide (SiO2)

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

Quartz (Milky / Massive Quartz)

Silicon Dioxide (SiO2)

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

Quartz Vein / Quartz Matrix

Silicon Dioxide (SiO2)

Desert Rose (Gypsum (CaSO4·2H2O) or Barite (BaSO4) inclusions in sand) — mineral

Desert Rose

Gypsum (CaSO4·2H2O) or Barite (BaSO4) inclusions in sand

Quartz (Druzy) on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy) on Matrix

Silicon Dioxide (SiO2)

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Limonite/Goethite Gossan (FeO(OH)·nH2O (Hydrated iron oxide)) — mineral

Limonite/Goethite Gossan

FeO(OH)·nH2O (Hydrated iron oxide)

Chrysocolla in Matrix (Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla in Matrix

Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O

Red Jasper with Quartz (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper with Quartz

Microcrystalline Quartz (SiO2)

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

Celestite Geode (Strontium Sulfate (SrSO4)) — mineral

Celestite Geode

Strontium Sulfate (SrSO4)

Hematite Pebble (Hematite (Fe2O3)) — mineral

Hematite Pebble

Hematite (Fe2O3)

Pyrite in Matrix (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite in Matrix (Fool's Gold)

Iron Disulfide (FeS2)

Amazonite (Microcline Feldspar (KAlSi3O8)) — mineral

Amazonite

Microcline Feldspar (KAlSi3O8)

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

Quartz Druzy Geode Fragment

Silicon Dioxide (SiO2)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

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

Sugilite

KNa2(Fe,Mn,Al)2Li3Si12O30

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Lepidolite (K(Li,Al)3(Al,Si,IV)4O10(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,IV)4O10(F,OH)2

Ruby in Zoisite (Anyolite) — metamorphic

Ruby in Zoisite

Anyolite

Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

Amazonite (Amazonite (Microcline variant: KAlSi3O8)) — mineral

Amazonite

Amazonite (Microcline variant: KAlSi3O8)

Azurite in Matrix (Azurite (Cu3(CO3)2(OH)2) in Rhyolite or Sandstone matrix) — mineral

Azurite in Matrix

Azurite (Cu3(CO3)2(OH)2) in Rhyolite or Sandstone matrix

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

Amethyst Cluster

Silicon Dioxide (SiO2) with iron impurities

Amethyst Geode (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst Geode

Amethyst (Silicon Dioxide, SiO2)

Chert (Jasper/Chalcedony mix) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Chalcedony mix)

Microcrystalline Quartz (SiO2)

Hypersthene (Hypersthene ((Mg,Fe)SiO3)) — mineral

Hypersthene

Hypersthene ((Mg,Fe)SiO3)

Chrysocolla (Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O) — mineral

Chrysocolla

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O

Malachite (Malachite (Cu2CO3(OH)2)) — mineral

Malachite

Malachite (Cu2CO3(OH)2)

Epidote (likely Unakite component or Epidosite) (Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote (likely Unakite component or Epidosite)

Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))

Celestine (or Celestite) on Matrix (Celestine (SrSO4)) — mineral

Celestine (or Celestite) on Matrix

Celestine (SrSO4)