Rock Identifier

Category

Man Made Metamorphic Style Composite

Browse man made metamorphic style composite specimens identified by the Rock Identifier community.

Learn about Man Made Metamorphic Style Composite in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Talc Schist

Mica Schist

Talc-carbonate Rock

Talc-carbonate Rock

Zincite

Mariposite

Gondite

Quartzite

Lherzolite

Eclogite

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Quartz-rich sandstone or quartzite fragment (Likely quartz arenite; possibly weakly metamorphosed quartzite (mostly SiO₂)) — sedimentary

Quartz-rich sandstone or quartzite fragment

Likely quartz arenite; possibly weakly metamorphosed quartzite (mostly SiO₂)

Zoisite with Hornblende (Zoisite (Ca2Al3(SiO4)3(OH)) with Amphibole inclusions) — metamorphic

Zoisite with Hornblende

Zoisite (Ca2Al3(SiO4)3(OH)) with Amphibole inclusions

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Blue faceted gemstones, likely blue sapphire (Corundum (Al₂O₃), blue varieties colored chiefly by iron and titanium) — gemstone

Blue faceted gemstones, likely blue sapphire

Corundum (Al₂O₃), blue varieties colored chiefly by iron and titanium

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Fossil shell fragment (Indeterminate molluscan bioclast, likely aragonite or calcite) — fossil

Fossil shell fragment

Indeterminate molluscan bioclast, likely aragonite or calcite

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Banded gneiss (likely amphibolite-bearing gneiss) (Gneiss; quartz–feldspar–mica/amphibole aggregate) — metamorphic

Banded gneiss (likely amphibolite-bearing gneiss)

Gneiss; quartz–feldspar–mica/amphibole aggregate

Quartzite (Quartzite (primarily SiO2)) — Metamorphic

Quartzite

Quartzite (primarily SiO2)

Basalt with Epidote (Mafic volcanic rock with Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — igneous

Basalt with Epidote

Mafic volcanic rock with Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

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

River Pebble (Quartzite)

Quartzite (SiO2)

Granite (Pegmatitic) (Phaneritic Felsic Igneous Rock) — igneous

Granite (Pegmatitic)

Phaneritic Felsic Igneous Rock

Tumbled banded metamorphic stone (Likely banded gneiss or migmatitic gneiss; exact identification requires testing) — metamorphic

Tumbled banded metamorphic stone

Likely banded gneiss or migmatitic gneiss; exact identification requires testing

Chert (specifically White Chert or Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically White Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Serpentine Jade (New Jade/Olive Jade) (Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite) — Mineral

Serpentine Jade (New Jade/Olive Jade)

Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite

Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Ruby (Corundum (Al₂O₃) with Chromium (Cr)) — Mineral (gemstone)

Ruby

Corundum (Al₂O₃) with Chromium (Cr)

Mineral (gemstone)

Lapis Lazuli (polished cabochon/sphere) (Na8[Al6Si6O24]Sn with accessory minerals (Pyrite, Calcite)) — metamorphic

Lapis Lazuli (polished cabochon/sphere)

Na8[Al6Si6O24]Sn with accessory minerals (Pyrite, Calcite)

Flint (Silicon dioxide (SiO2)) — sedimentary

Flint

Silicon dioxide (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Likely quartzite pebble (Quartzite, predominantly crystalline SiO₂) — metamorphic

Likely quartzite pebble

Quartzite, predominantly crystalline SiO₂

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Carbonate Beach Sand (Biogenic Carbonate Sediment (CaCO3)) — sedimentary

Carbonate Beach Sand

Biogenic Carbonate Sediment (CaCO3)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Pale granite pebble (tentative identification) (Granite; a coarse-grained felsic intrusive igneous rock composed primarily of quartz and feldspar, with minor mica or amphibole) — igneous

Pale granite pebble (tentative identification)

Granite; a coarse-grained felsic intrusive igneous rock composed primarily of quartz and feldspar, with minor mica or amphibole

Pallasite Meteorite (Pallasite (Stony-Iron Meteorite)) — meteorite

Pallasite Meteorite

Pallasite (Stony-Iron Meteorite)

Pearl (with Peridot) (Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4) — mineral

Pearl (with Peridot)

Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4

White Marble (Tumbled) (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble (Tumbled)

Recrystallized Calcite (CaCO3)

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

Chert (varieties: Flint or Jasper) (Silicon dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (varieties: Flint or Jasper)

Silicon dioxide (SiO2) / Microcrystalline Quartz

Quartzite (Quartzite (Metamorphic rock composed primarily of quartz)) — metamorphic

Quartzite

Quartzite (Metamorphic rock composed primarily of quartz)

Quartzite Pebble (Metamorphic rock primarily composed of Quartz (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic rock primarily composed of Quartz (SiO2)

Marble (Metamorphic rock primarily composed of Calcite (CaCO3)) — metamorphic

Marble

Metamorphic rock primarily composed of Calcite (CaCO3)

Diamond (Faceted) (Carbon (C)) — gemstone

Diamond (Faceted)

Carbon (C)

Raw Diamond (Carbon (C)) — gemstone

Raw Diamond

Carbon (C)

Diamond (in jewelry setting) (Adamantine Carbon (C)) — mineral

Diamond (in jewelry setting)

Adamantine Carbon (C)

Chert (Chocolate or Brown Flint) (Chert (SiO2)) — sedimentary

Chert (Chocolate or Brown Flint)

Chert (SiO2)

Unakite (Altered Granite (Epidote, Orthoclase Feldspar, Quartz)) — metamorphic

Unakite

Altered Granite (Epidote, Orthoclase Feldspar, Quartz)

Chert (Flint/Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint/Chalcedony)

Silicon Dioxide (SiO2)

Sandstone (Red/Brown Variety) (Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)) — sedimentary

Sandstone (Red/Brown Variety)

Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)

Felsic gneiss, likely granitic gneiss (Quartz–feldspar–mica gneiss; commonly quartz + plagioclase/K-feldspar + biotite or hornblende) — metamorphic

Felsic gneiss, likely granitic gneiss

Quartz–feldspar–mica gneiss; commonly quartz + plagioclase/K-feldspar + biotite or hornblende