Rock Identifier

Category

Sedimentary Or Metamorphic Derived

Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Metamorphic Derived in the encyclopedia

Khondalite

Calc-schist

Goldmanite

Oregon Opal

Orendite

Orthoclase

Orca Agate

Orange Opal

Peacock Ore

Orange Garnet

Orange Obsidian

Orange Calcite

Weathered rounded pebble (Likely altered granite or granitic gneiss fragment; exact identification is uncertain from the image) — igneous

Weathered rounded pebble

Likely altered granite or granitic gneiss fragment; exact identification is uncertain from the image

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

Red Jasper

Microcrystalline Quartz (SiO2) with Hematite impurities

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Red Jasper (Silicon Dioxide (SiO2) with Ferric Iron inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Ferric Iron inclusions

Jasper (Multi-color Chert) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Multi-color Chert)

Silicon Dioxide (SiO2) with impurities

Red Jasper (possibly Chert/Argillite) (Jasper (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (possibly Chert/Argillite)

Jasper (SiO2) with iron oxide inclusions

Tumbled quartzite pebble (Quartzite; predominantly microcrystalline quartz (SiO₂)) — metamorphic

Tumbled quartzite pebble

Quartzite; predominantly microcrystalline quartz (SiO₂)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Jasper (Jasper (Silicon Dioxide, SiO2)) — mineral

Jasper

Jasper (Silicon Dioxide, SiO2)

Glauconitic Siltstone / Mudstone (Glauconitic Pelite) — sedimentary

Glauconitic Siltstone / Mudstone

Glauconitic Pelite

Green Aventurine (Aventurine Quartz (SiO2 with inclusions of Fuchsite)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite)

Unakite (Epidotized Granite) (Unakite; primarily composed of Epidote (Ca2(Al,Fe)3(SiO4)3(OH)), Orthoclase (KAlSi3O8), and Quartz (SiO2)) — Metamorphic

Unakite (Epidotized Granite)

Unakite; primarily composed of Epidote (Ca2(Al,Fe)3(SiO4)3(OH)), Orthoclase (KAlSi3O8), and Quartz (SiO2)

Weathered greenish metamorphic rock, likely serpentinite (Serpentinite, dominated by serpentine-group minerals (commonly antigorite, lizardite, or chrysotile)) — metamorphic

Weathered greenish metamorphic rock, likely serpentinite

Serpentinite, dominated by serpentine-group minerals (commonly antigorite, lizardite, or chrysotile)

Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Fluorite (Fluorite (CaF₂)) — mineral

Fluorite

Fluorite (CaF₂)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Orthoclase Feldspar (KAlSi3O8 (Potassium aluminum silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium aluminum silicate)

Serpentine (Antigorite/Chrysotile group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentine

Antigorite/Chrysotile group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Orthoclase Feldspar (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — mineral

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Mica Schist (Mica Schist (predominantly Muscovite or Biotite series)) — metamorphic

Mica Schist

Mica Schist (predominantly Muscovite or Biotite series)

Banded Schist (Mica Schist) — metamorphic

Banded Schist

Mica Schist

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Anyolite (Ruby in Zoisite) (Zoisite with inclusions of Corundum; Ca2Al3(SiO4)3(OH) + Al2O3) — metamorphic

Anyolite (Ruby in Zoisite)

Zoisite with inclusions of Corundum; Ca2Al3(SiO4)3(OH) + Al2O3

Serpentine (Serpentinite (group of minerals: (Mg,Fe,Ni,Al)3Si2O5(OH)4)) — metamorphic

Serpentine

Serpentinite (group of minerals: (Mg,Fe,Ni,Al)3Si2O5(OH)4)

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Quartzite (with possible Iron staining) (Meta-orthoquartzite (primarily SiO2)) — metamorphic

Quartzite (with possible Iron staining)

Meta-orthoquartzite (primarily SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Green Aventurine (Fuchsite-bearing Quartzite) (Silicon Dioxide (SiO2) with Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine (Fuchsite-bearing Quartzite)

Silicon Dioxide (SiO2) with Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Mica Schist (Mica Schist (primarily composed of Muscovite, Biotite, and Quartz)) — metamorphic

Mica Schist

Mica Schist (primarily composed of Muscovite, Biotite, and Quartz)

White quartz pebble (Quartz (silicon dioxide, SiO₂), likely milky quartz) — mineral

White quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky quartz

Tumbled quartz-rich pebble (Quartz (SiO₂), possibly chalcedony or quartzite) — mineral

Tumbled quartz-rich pebble

Quartz (SiO₂), possibly chalcedony or quartzite

Rounded pale quartz-rich pebble (Likely milky quartz or quartzite (SiO₂); exact identification is uncertain from the photograph) — mineral

Rounded pale quartz-rich pebble

Likely milky quartz or quartzite (SiO₂); exact identification is uncertain from the photograph

Kaolinite (Chalky Clay) (Kaolinite (Al2Si2O5(OH)4)) — sedimentary

Kaolinite (Chalky Clay)

Kaolinite (Al2Si2O5(OH)4)

Aventurine Quartz (Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — mineral

Aventurine Quartz

Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Clear calcite cleavage fragment (Calcite (calcium carbonate, CaCO₃)) — mineral

Clear calcite cleavage fragment

Calcite (calcium carbonate, CaCO₃)