Rock Identifier

Category

Metamorphic Rock (Specifically A Rock Composed Of Minerals)

Browse metamorphic rock (specifically a rock composed of minerals) specimens identified by the Rock Identifier community.

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Yellow Quartzite (Iron-Stained Quartz) (Quartzite (SiO2 with Fe-oxide impurities)) — metamorphic

Yellow Quartzite (Iron-Stained Quartz)

Quartzite (SiO2 with Fe-oxide impurities)

Quartzite (Potentially Ferruginous) (Quartzite (SiO2)) — metamorphic

Quartzite (Potentially Ferruginous)

Quartzite (SiO2)

Jasper in Quartzite (likely Cinnabar or Iron inclusions) (Silicon dioxide (SiO2) with impurities) — metamorphic

Jasper in Quartzite (likely Cinnabar or Iron inclusions)

Silicon dioxide (SiO2) with impurities

Quartzite (Pink/Red variety) (Quartzite (SiO2 with iron oxide impurities)) — metamorphic

Quartzite (Pink/Red variety)

Quartzite (SiO2 with iron oxide impurities)

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Quartzite pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite pebble

Quartzite (primarily SiO2)

Quartzite with Feldspar (Quartzite (mainly SiO2) with inclusions of Potassium Feldspar (KAlSi3O8)) — metamorphic

Quartzite with Feldspar

Quartzite (mainly SiO2) with inclusions of Potassium Feldspar (KAlSi3O8)

Red Quartzite (Quartzite (primarily SiO2)) — metamorphic

Red Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Eclogite (Eclogite) — metamorphic

Eclogite

Eclogite

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Yellow Quartzite (River Pebble) (Quartzite (SiO2)) — metamorphic

Yellow Quartzite (River Pebble)

Quartzite (SiO2)

Pegmatitic Granite (Granite with Orthoclase Feldspar and Quartz (SiO2, KAlSi3O8)) — igneous

Pegmatitic Granite

Granite with Orthoclase Feldspar and Quartz (SiO2, KAlSi3O8)

Ferruginous Sandstone (Sandstone with iron oxide (Hematite/Limonite) cement) — sedimentary

Ferruginous Sandstone

Sandstone with iron oxide (Hematite/Limonite) cement

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

Quartz (Druzy on Matrix)

Silicon Dioxide (SiO2)

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

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Dendritic Agate (Chalcedony (SiO2) with manganese/iron oxide inclusions) — mineral

Dendritic Agate

Chalcedony (SiO2) with manganese/iron oxide inclusions

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

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Amygdaloidal Basalt with Quartz/Zeolite Infill (Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)) — igneous

Amygdaloidal Basalt with Quartz/Zeolite Infill

Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)

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

Quartz

Quartz (Silicon Dioxide, SiO2)

Pink Granite (Granite (Phaneritic igneous rock composed mainly of quartz, alkali feldspar, and plagioclase)) — igneous

Pink Granite

Granite (Phaneritic igneous rock composed mainly of quartz, alkali feldspar, and plagioclase)

Bull Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Bull Quartz

Quartz (Silicon Dioxide - SiO2)

Ferruginous Chert (Jasper) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Ferruginous Chert (Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Unakite (Unakite (Altered Granite consisting of Orthoclase KAlSi3O8, Epidote Ca2(Al,Fe)3(SiO4)3(OH), and Quartz SiO2)) — metamorphic

Unakite

Unakite (Altered Granite consisting of Orthoclase KAlSi3O8, Epidote Ca2(Al,Fe)3(SiO4)3(OH), and Quartz SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Slate (Slate (Metamorphosed Mudstone/Shale)) — metamorphic

Slate

Slate (Metamorphosed Mudstone/Shale)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Soapstone

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

Agate (Silicon Dioxide (SiO2) - variety Chalcedony) — mineral

Agate

Silicon Dioxide (SiO2) - variety Chalcedony

Geode (Unopened) (Siliceous Geode (SiO2)) — sedimentary

Geode (Unopened)

Siliceous Geode (SiO2)

Chert (Jasper/Agate variety) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Cryptocrystalline Quartz (SiO2)

Puddingstone (Conglomerate (Indurated)) — sedimentary

Puddingstone

Conglomerate (Indurated)

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

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles (Mixed gemstones (primarily Silicon Dioxide - SiO2)) — mineral

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles

Mixed gemstones (primarily Silicon Dioxide - SiO2)

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

Quartz

Quartz (SiO₂ - Silicon Dioxide)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

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

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Chert / Flint (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

Bituminous Coal (with Anthracite or Vitrinite inclusion) (Organic-rich Sedimentary Rock (Carboniferous classification)) — sedimentary

Bituminous Coal (with Anthracite or Vitrinite inclusion)

Organic-rich Sedimentary Rock (Carboniferous classification)