Rock Identifier

Category

Sedimentary Or Metamorphic (Low Grade)

Browse sedimentary or metamorphic (low grade) specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Metamorphic (Low Grade) in the encyclopedia

Greenschist

Slate

Lignite

Calcilutite

Calcirudite

Grape Garnet

Grape Agate

Granulite

Chlorite Schist

Chlorite Schist

Turbidite

Conglomerate

Greenstone

Epidote (Epidote (Ca2(Al2,Fe3+)3(SiO4)3(OH))) — metamorphic

Epidote

Epidote (Ca2(Al2,Fe3+)3(SiO4)3(OH))

Silicon (Industrial Grade) (Elemental Silicon (Si)) — mineral

Silicon (Industrial Grade)

Elemental Silicon (Si)

Gneiss (Metamorphic Pebble) (Gneiss (SiO2-rich metamorphic rock)) — metamorphic

Gneiss (Metamorphic Pebble)

Gneiss (SiO2-rich metamorphic rock)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sunstone (Oligoclase or Andesine (Plagioclase Feldspar) - (Ca, Na)((Al, Si)2Si2O8)) — mineral

Sunstone

Oligoclase or Andesine (Plagioclase Feldspar) - (Ca, Na)((Al, Si)2Si2O8)

Limonite/Goethite Nodule (Iron Oxyhydroxide (primarily FeO(OH)·nH2O)) — mineral

Limonite/Goethite Nodule

Iron Oxyhydroxide (primarily FeO(OH)·nH2O)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Emerald (Beryl (Be₃Al₂Si₆O₁₈), specifically the green variety colored by trace amounts of chromium or vanadium.) — Mineral

Emerald

Beryl (Be₃Al₂Si₆O₁₈), specifically the green variety colored by trace amounts of chromium or vanadium.

Amethyst Cluster (Quartz (Silicon Dioxide, SiO2)) — gemstone

Amethyst Cluster

Quartz (Silicon Dioxide, SiO2)

Biotite Schist (Biotite Schist (containing K(Mg,Fe)3AlSi3O10(OH)2)) — metamorphic

Biotite Schist

Biotite Schist (containing K(Mg,Fe)3AlSi3O10(OH)2)

Prehnite (Prehnite, Ca2Al2Si3O10(OH)2) — Mineral

Prehnite

Prehnite, Ca2Al2Si3O10(OH)2

Garnet in Schist/Gneiss Matrix (Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)) — metamorphic

Garnet in Schist/Gneiss Matrix

Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Jadeite Jade (Jadeite, NaAlSi2O6) — gemstone

Jadeite Jade

Jadeite, NaAlSi2O6

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

Serpentine

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

Jadeite (Jadeite, NaAlSi2O6) — gemstone

Jadeite

Jadeite, NaAlSi2O6

Jade Bangle (Jadeite) (Jadeite (NaAlSi2O6)) — gemstone

Jade Bangle (Jadeite)

Jadeite (NaAlSi2O6)

Almandine Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Greenstone (Amygdaloidal Basalt) (Amygdaloidal Basalt (frequently composed of Plagioclase Feldspar, Pyroxene, and Olivine with Chlorite inclusions)) — igneous

Greenstone (Amygdaloidal Basalt)

Amygdaloidal Basalt (frequently composed of Plagioclase Feldspar, Pyroxene, and Olivine with Chlorite inclusions)

Epithermal Gold Ore (in Quartz/Rhyolite matrix) (Auriferous Quartz (Au + SiO2)) — mineral

Epithermal Gold Ore (in Quartz/Rhyolite matrix)

Auriferous Quartz (Au + SiO2)

Jadeite (NaAlSi2O6) — gemstone

Jadeite

NaAlSi2O6

Lavender Jadeite (Jadeite ($NaAlSi_2O_6$)) — gemstone

Lavender Jadeite

Jadeite ($NaAlSi_2O_6$)

Serpentine (New Jade) (Antigorite/Lizardite [Mg3Si2O5(OH)4]) — metamorphic

Serpentine (New Jade)

Antigorite/Lizardite [Mg3Si2O5(OH)4]

Serpentinite (Serpentine group minerals ((Mg, Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentine group minerals ((Mg, Fe)3Si2O5(OH)4)

Banded Gneiss (Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)) — metamorphic

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)

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

Quartz (Common Milky Quartz)

Silicon Dioxide (SiO2)

Amethyst and Hematite Bracelet (Amethyst (SiO2) and Hematite (Fe2O3)) — mineral

Amethyst and Hematite Bracelet

Amethyst (SiO2) and Hematite (Fe2O3)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Gneiss (Schistose) (Gneiss) — metamorphic

Gneiss (Schistose)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (Metamorphic Cobble) (Gneiss) — metamorphic

Gneiss (Metamorphic Cobble)

Gneiss