Epidosite (Unakite-related)
Epidosite (composed primarily of Epidote and Quartz)
Category
Browse mineral in metamorphic specimens identified by the Rock Identifier community.
Epidosite (Unakite-related)
Epidosite (composed primarily of Epidote and Quartz)
Biotite Schist
Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Biotite Schist
Biotite Gneiss/Schist (approximate formula K(Mg,Fe)3AlSi3O10(OH)2)
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
Epidote in Matrix (likely Amphibolite or Gneiss)
Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) in Metamorphic Matrix
Epidote in Matrix
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Likely epidote-bearing rock or weathered chalcopyrite specimen
Epidote-group mineral, possibly with chalcopyrite; identification uncertain from image
Feldspar in Matrix
Feldspar group minerals in metamorphic or igneous matrix
Gossan (Iron Hat)
Goethite-Hematite rich weathered rock (Fe-hydroxides)
Schist (Kyanite Schist)
Kyanite-Mica Schist (primarily Al2SiO5, KAl2(AlSi3O10)(OH)2, and SiO2)
Unakite Epidote-Granite
Unakite (Epidotized Granite)
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Iron-stained quartz rock
Quartz (SiO₂), likely ferruginous quartz or quartz-rich breccia
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Rhodonite
Rhodonite (Mn2+SiO3 or (Mn,Fe,Mg,Ca)SiO3)
Black Star Diopside
Diopside (CaMgSi2O6) with Magnetite inclusions
Serafina (Serafinite / Clinochlore)
Clinochlore (Mg5Al)(AlSi3O10)(OH)8
Dark gray crystalline rock, possibly basalt
Basalt (tentative; plagioclase–pyroxene–iron oxide assemblage)
Calcite
Calcite (Calcium Carbonate, CaCO3)
Pyrite
Iron Sulfide (FeS2)
Magnetite
Fe3O4 (Iron(II,III) oxide)
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
Fuchsite
Chromium-bearing Muscovite - K(Al,Cr)2(AlSi3O10)(OH)2
Magnetite (Lodestone)
Magnetite (Fe3O4)
Pyrite (Fool's Gold) in Matrix
Iron Disulfide (FeS2)
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite (on Quartz/Host Rock)
Iron Sulfide (FeS₂)
Quartz Pebble
Silicon Dioxide (SiO2)
Unidentified gray mineral/rock fragment
Indeterminate from image; possibly quartz-rich material or mica-bearing schist
Milky Quartz with Chlorite inclusion
Silicon Dioxide (SiO2) with Chlorite group inclusions
White Jade (Nephrite)
Nephrite, Ca2(Mg,Fe)5Si8O22(OH)2
Micaceous Rock (likely Muscovite Schist/Gneiss or a Muscovite-rich Specimen)
Predominantly Muscovite (KAl2(AlSi3O10)(F,OH)2), often found in rocks like Muscovite Schist or Muscovite Gneiss.
Garnet (likely Almandine, Pyrope, or a blend)
Garnet group minerals: X3Y2(SiO4)3, where X and Y represent various metal ions (e.g., Almandine: Fe3Al2(SiO4)3, Pyrope: Mg3Al2(SiO4)3)
Raw Emerald in Schist Matrix
Beryl (Be3Al2Si6O18) in Mica Schist
Amethyst and Ruby in Zoisite
Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock (often Granite or Schist)
Silicon Dioxide (SiO2) within host matrix