Nuummite
Orthoamphibole (mixture of Anthophyllite and Gedrite)
metamorphic
Category
Metamorphic (Low Grade)
Browse metamorphic (low grade) specimens identified by the Rock Identifier community.
Learn about Metamorphic (Low Grade) in the encyclopedia
View all →
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
metamorphic
Gneiss (Granitic Gneiss)
Gneiss
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Granitic Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Ruby
Corundum (Aluminium Oxide with Chromium impurities, Al2O3:Cr)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Mica Schist
Crystalline Schist (often containing Muscovite, Biotite, and Quartz)
metamorphic
Diamond Drill Core (Greenschist and Quartzite)
Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)
metamorphic
Greenstone
Greenschist-facies basaltic rock
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Serpentine (Green Jasper variety)
Antigorite/Chrysotile, Mg3Si2O5(OH)4
metamorphic
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss (specifically Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Lavender Jade (Jadeite)
Jadeite - Sodium Aluminum Silicate (NaAlSi2O6)
metamorphic
Burmese Jadeite (Water Jade)
Jadeite (NaAlSi2O6)
metamorphic
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Rough Diamond
Diamond (pure Carbon, C)
mineral
Biotite Schist
Biotite Mica Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic
Greenstone / Greenschist
Chlorite schist / Meta-basalt
metamorphic
Quartzite (River Pebble)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Iron-Stained Quartzite
Quartzite (chemically SiO2 with Fe2O3/FeO(OH) staining)
metamorphic
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Schist
Mica Schist
metamorphic
Gneiss
Gneiss
metamorphic
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic
Schist
Mica Schist
metamorphic
Gneiss (Granitic Gneiss)
Gneiss
metamorphic
River Pebble (Gneiss or Granite)
Metamorphic Rock (likely Gneiss or Granitic composition)
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite/Biotite)
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic