Pyrite
Iron Sulfide (FeS2)
mineral
Category
Mineral, Often Found In Metamorphic Rocks But Also In Sedimentary And Igneous Rocks
Browse mineral, often found in metamorphic rocks but also in sedimentary and igneous rocks specimens identified by the Rock Identifier community.
Citrine Quartz
SiO2 (Silicon Dioxide with Iron impurities)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Mineral
Gneiss
Gneiss (Metamorphic high-grade)
metamorphic
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
Mineral
Smoky Quartz
Silicon Dioxide (SiO₂)
mineral
Greenstone
Metamorphosed Mafic Igneous Rock
metamorphic
Rhodonite
Rhodonite (MnSiO3)
Mineral
Milky Quartz
Quartz (SiO₂)
Mineral
Quartz Geode (with Calcite influence)
Silicon Dioxide (SiO2) with possible Calcium Carbonate (CaCO3)
mineral
Quartz Crystal
Quartz (SiO₂)
Mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Pyrite (on Quartz matrix)
Iron Disulfide (FeS2)
mineral
Specular Hematite (Specularite)
Iron(III) oxide (Fe2O3)
mineral
Gneiss
High-grade foliated metamorphic rock
metamorphic
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities and natural radiation
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Mica Schist
Mica Schist (primarily Muscovite or Biotite-rich sequence)
metamorphic
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Fluorite (left), Sodalite (middle), Dumortierite/Tumbled Quartzite (right)
Calcium Fluoride (CaF2), Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2), Aluminum Borosilicate (Al7(BO3)(SiO4)3O3)
mineral
Quartz
Quartz (SiO2)
Mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂)
Mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Mineral
Pyrite in Quartz
Iron Disulfide (FeS2) in Silicon Dioxide (SiO2)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Hematite
Iron (III) Oxide, Fe2O3
Mineral
Bornite
Bornite (Cu5FeS4)
mineral
Sandstone or Mudstone with Iron Staining
Ferruginous Sandstone/Mudstone
Sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Hematite (Iron Ore)
Hematite (Fe2O3)
mineral