Rock Identifier

Category

Igneous Or Metamorphic

Browse igneous or metamorphic specimens identified by the Rock Identifier community.

Pyrite (Iron Pyrites) (Iron Sulfide (FeS2)) — mineral

Pyrite (Iron Pyrites)

Iron Sulfide (FeS2)

Pink Sapphire (Corundum (Al2O3) with Chromium/Iron/Titanium trace impurities) — mineral

Pink Sapphire

Corundum (Al2O3) with Chromium/Iron/Titanium trace impurities

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Greenstone / Diabase Porphyry (Porphyritic Diabase (Micro-gabbro)) — Igneous

Greenstone / Diabase Porphyry

Porphyritic Diabase (Micro-gabbro)

Serpentine (Serpentine Group (primarily Antigorite or Lizardite), Mg3Si2O5(OH)4) — metamorphic

Serpentine

Serpentine Group (primarily Antigorite or Lizardite), Mg3Si2O5(OH)4

Gneiss (specifically a weathered or stream-worn specimen) (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss (specifically a weathered or stream-worn specimen)

Gneiss (Foliated Metamorphic Rock)

Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Gneiss (Pebble) (Gneiss) — metamorphic

Gneiss (Pebble)

Gneiss

Greenstone / Greenschist (Chlorite schist / Meta-basalt) — metamorphic

Greenstone / Greenschist

Chlorite schist / Meta-basalt

Gneiss (with Quartzite and Mica) (Gneiss) — metamorphic

Gneiss (with Quartzite and Mica)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Nuummite (Antophyllite-Gedrite (Orthorhombic amphiboles)) — metamorphic

Nuummite

Antophyllite-Gedrite (Orthorhombic amphiboles)

Greenstone Celt (Polished Stone Axe) (Metamorphosed mafic rock (often Basalt or Diabase)) — metamorphic

Greenstone Celt (Polished Stone Axe)

Metamorphosed mafic rock (often Basalt or Diabase)

Greenstone (Epidisite / Chlorite Schist) (Metabasalt (often contains Epidote Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) and Chlorite)) — metamorphic

Greenstone (Epidisite / Chlorite Schist)

Metabasalt (often contains Epidote Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) and Chlorite)

Gneiss (High-grade foliated metamorphic rock) — metamorphic

Gneiss

High-grade foliated metamorphic rock

Black Star Diopside (beads) (Diopside (CaMgSi2O6) - a member of the pyroxene group) — Mineral

Black Star Diopside (beads)

Diopside (CaMgSi2O6) - a member of the pyroxene group

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

Lapis Lazuli

Lapis Lazuli (Aggregate of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Pyrite, and Calcite)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Lapis Lazuli (Tumbled Stone) (Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (predominantly Lazurite)) — metamorphic

Lapis Lazuli (Tumbled Stone)

Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (predominantly Lazurite)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartz with Mica (Gneissic or Pegmatitic origin) (Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)) — metamorphic

Quartz with Mica (Gneissic or Pegmatitic origin)

Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)

Greenstone (Greenschist) (Greenschist (composed of Chlorite, Epidote, and Actinolite)) — metamorphic

Greenstone (Greenschist)

Greenschist (composed of Chlorite, Epidote, and Actinolite)

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

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Granite Gneiss (High-grade regional metamorphic rock (Quartz-Feldspar Gneiss)) — metamorphic

Granite Gneiss

High-grade regional metamorphic rock (Quartz-Feldspar Gneiss)

Nuummite (Nuummite (Orthoamphibole rock / Anthophyllite-Gedrite blend)) — metamorphic

Nuummite

Nuummite (Orthoamphibole rock / Anthophyllite-Gedrite blend)

Schist (specifically Chlorite/Greenschist) (Chlorite Schist) — metamorphic

Schist (specifically Chlorite/Greenschist)

Chlorite Schist

Banded Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade metamorphic rock)

Pyrite (Fools Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fools Gold)

Iron Sulfide (FeS2)

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

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

Quartz / Milky Quartz

Quartz (Silicon Dioxide - SiO2)

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

Feldspar (specifically Orthoclase)

Potassium Aluminum Silicate (KAlSi3O8)

Black Sapphire (Corundum (Al2O3 with iron and titanium impurities)) — mineral

Black Sapphire

Corundum (Al2O3 with iron and titanium impurities)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Gold Ore in Matrix (Native Gold (Au) in Quartz/Host Rock) — mineral

Gold Ore in Matrix

Native Gold (Au) in Quartz/Host Rock

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Corundum (Sapphire variant) (Aluminium oxide (Al2O3)) — mineral

Corundum (Sapphire variant)

Aluminium oxide (Al2O3)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Quartz (Silicon Dioxide (SiO₂)) — Mineral

Quartz

Silicon Dioxide (SiO₂)

Ruby, Emerald, and Sapphire (Corundum and Beryl) (Corundum (Al2O3) and Beryl (Be3Al2Si6O18)) — mineral

Ruby, Emerald, and Sapphire (Corundum and Beryl)

Corundum (Al2O3) and Beryl (Be3Al2Si6O18)