Rock Identifier

Category

Mineral Composite

Browse mineral composite specimens identified by the Rock Identifier community.

Learn about Mineral Composite in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Sea Sediment Jasper

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Magnetite (Fe3O4) — mineral

Magnetite

Fe3O4

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) — mineral

Epidote

Ca2(Al,Fe)3(SiO4)3(OH)

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

Quartz Cluster on Matrix

Silicon Dioxide (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Aragonite (Aragonite (CaCO3)) — mineral

Aragonite

Aragonite (CaCO3)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

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

Lepidolite

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

Wollastonite (Wollastonite (CaSiO3)) — mineral

Wollastonite

Wollastonite (CaSiO3)

Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

K-Feldspar (Microcline / Orthoclase) (Potassium Feldspar (KAlSi3O8)) — mineral

K-Feldspar (Microcline / Orthoclase)

Potassium Feldspar (KAlSi3O8)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Magnetite (Iron(II,III) oxide, Fe3O4) — mineral

Magnetite

Iron(II,III) oxide, Fe3O4

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Mica Schist or Muscovite (KAl2(AlSi3O10)(OH)2) — metamorphic

Mica Schist or Muscovite

KAl2(AlSi3O10)(OH)2

Limonite with Gossan / Iron Ore (Hydrated iron oxide-hydroxide, approximately FeO(OH)·nH2O) — mineral

Limonite with Gossan / Iron Ore

Hydrated iron oxide-hydroxide, approximately FeO(OH)·nH2O

Graphite (Graphite (Carbon, C)) — mineral

Graphite

Graphite (Carbon, C)

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

Muscovite Mica

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

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Ironstone / Hematite (Iron(III) oxide (Fe2O3)) — mineral

Ironstone / Hematite

Iron(III) oxide (Fe2O3)

Celestite (Celestine (SrSO4)) — mineral

Celestite

Celestine (SrSO4)

Graphite (Graphite (Carbon, C)) — mineral

Graphite

Graphite (Carbon, C)

Galena with Pyrite (Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)) — mineral

Galena with Pyrite

Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)

Feldspar (Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)) — mineral

Feldspar

Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)

Chalcopyrite (CuFeS2) — mineral

Chalcopyrite

CuFeS2

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Muscovite (KAl2(AlSi3O10)(OH)2) — mineral

Muscovite

KAl2(AlSi3O10)(OH)2

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Yellow Topaz (Al2SiO4(F,OH)2) — gemstone

Yellow Topaz

Al2SiO4(F,OH)2

Faceted red garnet (Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃)) — gemstone

Faceted red garnet

Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃)

Faceted garnet bead necklace (Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃); exact species cannot be confirmed from the image) — gemstone

Faceted garnet bead necklace

Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃); exact species cannot be confirmed from the image

Rounded, weathered stone (likely basaltic or andesitic river cobble) (Fine-grained mafic to intermediate volcanic rock; exact identification requires examination of a fresh surface) — igneous

Rounded, weathered stone (likely basaltic or andesitic river cobble)

Fine-grained mafic to intermediate volcanic rock; exact identification requires examination of a fresh surface

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

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2)

Tumbled Mixed Gemstones and Rocks (Various mineral species including quartz (SiO2) and silicate minerals) — mineral

Tumbled Mixed Gemstones and Rocks

Various mineral species including quartz (SiO2) and silicate minerals

Blue-green copper mineral (possibly chrysocolla or turquoise) (Undetermined from the image; chrysocolla is a hydrated copper silicate, Cu₂H₂O₅Si, while turquoise is CuAl₆(PO₄)₄(OH)₈·4H₂O) — mineral

Blue-green copper mineral (possibly chrysocolla or turquoise)

Undetermined from the image; chrysocolla is a hydrated copper silicate, Cu₂H₂O₅Si, while turquoise is CuAl₆(PO₄)₄(OH)₈·4H₂O

Fluorite (Calcium fluoride (CaF2)) — mineral

Fluorite

Calcium fluoride (CaF2)

Jade (likely Jadeite) (Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)) — Mineral

Jade (likely Jadeite)

Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)

Rounded, mottled pebble (likely granitoid) (Probable granitic or dioritic rock; exact identification requires closer inspection) — igneous

Rounded, mottled pebble (likely granitoid)

Probable granitic or dioritic rock; exact identification requires closer inspection

Small brown mineral or rock fragment (Undetermined; the image does not show enough detail for reliable identification) — mineral

Small brown mineral or rock fragment

Undetermined; the image does not show enough detail for reliable identification

Quartz Vein in Sedimentary Rock (Silicon Dioxide (SiO2) with host Chert or Limestone) — mineral

Quartz Vein in Sedimentary Rock

Silicon Dioxide (SiO2) with host Chert or Limestone