Rock Identifier

Category

Mineral And Metamorphic Rock

Browse mineral and metamorphic rock specimens identified by the Rock Identifier community.

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Epidotized Granite (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))) — metamorphic

Unakite

Epidotized Granite (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))

Labradorite (tumbled) (Labradorite (a plagioclase feldspar mineral between anorthite and albite; chemical formula: (Ca,Na)(Si,Al)4O8)) — Mineral

Labradorite (tumbled)

Labradorite (a plagioclase feldspar mineral between anorthite and albite; chemical formula: (Ca,Na)(Si,Al)4O8)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Pink Quartzite (Quartzite (primarily SiO2)) — metamorphic

Pink Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Quartzite (SiO2 (Silicon Dioxide)) — metamorphic

Quartzite

SiO2 (Silicon Dioxide)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite with Mica schist fragment (Quartzite (SiO2) with Muscovite/Biotite Schist) — metamorphic

Quartzite with Mica schist fragment

Quartzite (SiO2) with Muscovite/Biotite Schist

Quartzite Cobble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Cobble

Quartzite (primarily SiO2)

Quartzite Cobble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Cobble

Quartzite (primarily SiO2)

Unakite (Epidote-Rich Granite) (Unakite (Granite consisting of Orthoclase, Quartz, and Epidote)) — metamorphic

Unakite (Epidote-Rich Granite)

Unakite (Granite consisting of Orthoclase, Quartz, and Epidote)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Sunstone (Plagioclase Feldspar (specifically Oligoclase variety containing hematite or goethite inclusions)", composition: (Ca,Na)(Al,Si)2Si2O8) — Mineral

Sunstone

Plagioclase Feldspar (specifically Oligoclase variety containing hematite or goethite inclusions)", composition: (Ca,Na)(Al,Si)2Si2O8

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Not a geological specimen (N/A (man-made object)) — N/A

Not a geological specimen

N/A (man-made object)

Desert Rose (Baryte or Selenite variant) (Barium Sulfate (BaSO4) or Gypsum (CaSO4·2H2O) with Sand inclusions) — mineral

Desert Rose (Baryte or Selenite variant)

Barium Sulfate (BaSO4) or Gypsum (CaSO4·2H2O) with Sand inclusions

Soapstone (Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)) — Metamorphic Rock

Soapstone

Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)

Metamorphic Rock

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Shale or Mudstone (Based on appearance) (Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)) — Sedimentary

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)

Quartzite Pebble (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartzite (SiO2)

Unakite (Unakite Epidosite (Granite with epidote and orthoclase)) — metamorphic

Unakite

Unakite Epidosite (Granite with epidote and orthoclase)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral with metamorphic or sedimentary host

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

mineral with metamorphic or sedimentary host

Diamond (in a jewelry setting) (Diamond (Carbon, C)) — mineral

Diamond (in a jewelry setting)

Diamond (Carbon, C)

Quartzite River Pebble (Quartzite (SiO2)) — metamorphic

Quartzite River Pebble

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Black Spinel (Magnesium Aluminum Oxide (MgAl2O4)) — mineral

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Orange Quartz with Hematite inclusions (Quartz (SiO2) with Hematite (Fe2O3) inclusions) — Mineral

Orange Quartz with Hematite inclusions

Quartz (SiO2) with Hematite (Fe2O3) inclusions

Agate (Agate (a cryptocrystalline variety of Quartz, SiO₂)) — Mineral

Agate

Agate (a cryptocrystalline variety of Quartz, SiO₂)

Rhodonite (Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3) — Mineral

Rhodonite

Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3

Serpentinite (Commonly known as Serpentine) (Antigorite, Lizardite, or Chrysotile [(Mg,Fe)3Si2O5(OH)4]) — metamorphic

Serpentinite (Commonly known as Serpentine)

Antigorite, Lizardite, or Chrysotile [(Mg,Fe)3Si2O5(OH)4]

Note: Item is not a geological specimen (n/a) — none

Note: Item is not a geological specimen

n/a

Glacial Cobble (likely Granitic or Gneissic) (Granite/Gneiss Glacial Erratic) — igneous

Glacial Cobble (likely Granitic or Gneissic)

Granite/Gneiss Glacial Erratic

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)