Rock Identifier

Category

Metamorphic Or Sedimentary Depending On Local Grade

Browse metamorphic or sedimentary depending on local grade specimens identified by the Rock Identifier community.

Learn about Metamorphic Or Sedimentary Depending On Local Grade in the encyclopedia

Greenschist

Greenschist

Granulite

Granulite

Slate

Slate

Turbidite

Turbidite

Gneiss

Gneiss

Schist

Schist

Chlorite Schist

Chlorite Schist

Amphibolite

Amphibolite

Garnet Schist

Garnet Schist

Migmatite

Migmatite

Biotite Schist

Biotite Schist

Khondalite

Khondalite

Sapphire (Corundum (Al2O3)) — mineral

Sapphire

Corundum (Al2O3)

Fossilized Shark Tooth (Elasmobranchii (Class) fossil) — fossil

Fossilized Shark Tooth

Elasmobranchii (Class) fossil

Jasper (Multi-colored) / Sea Glass Slag (Silicon Dioxide (SiO2) with impurities of Iron Oxide) — Sedimentary (if natural Jasper) or Artificial (if Slag)

Jasper (Multi-colored) / Sea Glass Slag

Silicon Dioxide (SiO2) with impurities of Iron Oxide

Sedimentary (if natural Jasper) or Artificial (if Slag)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Greenstone or Epidote-rich Metamorphic Rock (Chlorite/Epidote Schist or Greenstone) — metamorphic

Greenstone or Epidote-rich Metamorphic Rock

Chlorite/Epidote Schist or Greenstone

Quartz (Float/Abraded) (Quartz (SiO₂)) — Mineral

Quartz (Float/Abraded)

Quartz (SiO₂)

Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead) (Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)) — Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)

Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead)

Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)

Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)

Green Tourmaline (Elbaite - Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4) — mineral

Green Tourmaline

Elbaite - Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

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

Lepidolite

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

Jasper and Epidote (Unakite-like specimen) (Epidotized granite or Jasper with Epidote inclusions) — metamorphic

Jasper and Epidote (Unakite-like specimen)

Epidotized granite or Jasper with Epidote inclusions

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

White Marble

Recrystallized Calcite (CaCO3) / Marble

Quartz with Chalcopyrite (or Pyrite) (Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)) — mineral

Quartz with Chalcopyrite (or Pyrite)

Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)

Green Aventurine and Clear Quartz (Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)) — Mineral

Green Aventurine and Clear Quartz

Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)

Gold-Bearing River Sand (Auriferous Placer Sand (Au + various minerals like SiO2 and Fe3O4)) — sedimentary

Gold-Bearing River Sand

Auriferous Placer Sand (Au + various minerals like SiO2 and Fe3O4)

Pink Granite / Gneiss (Felsic Plutonic Rock (Granite) with Gneissic banding) — igneous / metamorphic

Pink Granite / Gneiss

Felsic Plutonic Rock (Granite) with Gneissic banding

igneous / metamorphic

Lapis Lazuli with Pyrite (Lapis lazuli (Mainly Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli with Pyrite

Lapis lazuli (Mainly Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Yellow Jadeite (NaAlSi2O6 (Sodium Aluminum Silicate)) — metamorphic

Yellow Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Lapis Lazuli (Lapis Lazuli (Complex silicate: Na8[Al6Si6O24]Sn)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex silicate: Na8[Al6Si6O24]Sn)

Serpentinite (Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals usually (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals usually (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Lapis Lazuli (Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Eclogite (Eclogite (Omphacite + Almandine-Pyrope Garnet)) — metamorphic

Eclogite

Eclogite (Omphacite + Almandine-Pyrope Garnet)

Serpentinite (Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)) — metamorphic

Serpentinite

Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)

Lapis Lazuli (Lapis Lazuli (Complex silicate mixture)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex silicate mixture)

Nephrite Jade (Tremolite-Actinolite solid solution Ca2(Mg,Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Tremolite-Actinolite solid solution Ca2(Mg,Fe)5Si8O22(OH)2

Nephrite Jade (Ca2(Mg, Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Blue Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Chalcedony

Cryptocrystalline Quartz (SiO2)

Agate (Agate (Microcrystalline Quartz, SiO2)) — mineral

Agate

Agate (Microcrystalline Quartz, SiO2)

Ferruginous Quartz (Carnelian-tinted Quartz) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Ferruginous Quartz (Carnelian-tinted Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Calcite (likely a tumbled specimen) (Calcite (CaCO
3
)) — Mineral

Calcite (likely a tumbled specimen)

Calcite (CaCO 3 )

Rhodonite (Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)) — mineral

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)

Shatter Cone (Impactite (Shatter Cone texture)) — metamorphic

Shatter Cone

Impactite (Shatter Cone texture)

Chert (Jasper/Flint variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2)

Jasper or Agate with Chlorite Inclusions (Silicon Dioxide (SiO2) with Chlorite group minerals) — sedimentary

Jasper or Agate with Chlorite Inclusions

Silicon Dioxide (SiO2) with Chlorite group minerals

Lazulite (Lazulite (MgAl2(PO4)2(OH)2)) — mineral

Lazulite

Lazulite (MgAl2(PO4)2(OH)2)

Calcite (Calcite (CaCO3)) — Mineral

Calcite

Calcite (CaCO3)

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

Diamond (in jewelry setting)

Adamantine Carbon (C)