Unakite
Unakite (Altered Granite composed of Orthoclase KAlSi3O8, Epidote Ca2(Al, Fe)3(SiO4)3(OH), and Quartz SiO2)
Category
Browse metamorphic rock (for both nephrite and jadeite) specimens identified by the Rock Identifier community.
Unakite
Unakite (Altered Granite composed of Orthoclase KAlSi3O8, Epidote Ca2(Al, Fe)3(SiO4)3(OH), and Quartz SiO2)
Quartzite
Quartzite (Primary mineral: Quartz, SiO2)
Quartzite (Iron-stained)
Metamorphosed Quartz-rich Rock (SiO2)
Gneiss
Gneiss
Unakite (Epidotized Granite)
Unakite (Rock composed of Epidote Ca2(Al,Fe)3(SiO4)3(OH), Orthoclase KAlSi3O8, and Quartz SiO2)
Quartzite with Quartz Veins
Quartzite (chiefly SiO2)
Serpentinite
Serpentinite ((Mg,Fe,Ni,Al)3Si2O5(OH)4)
Unakite
Epidotized Granite
Quartzite (Ferruginous)
Quartzite (major component SiO2 with Fe2O3 impurities)
Unakite
Epidotized Granite
Unakite
Unakite (altered granite)
Unakite
Epidotized Granite
Unakite
Epidotized Granite
Gneiss
Gneiss
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Slate
Foliated Metamorphic Rock (primarily clay minerals and micas)
River Pebble (Gneiss or Quartzite variant)
Course-grained Metamorphic Rock (likely SiO2 dominant)
Anthracite Coal
Anthracite (Carbon-based sedimentary-derived metamorphic rock)
Schist
Mica Schist
Serpentine (Lizardite)
Serpentine subgroup, Mg3Si2O5(OH)4
Quartzite
Quartzite (predominantly SiO2)
Serpentine
Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4)
Unakite
Unakite (Epidotized Granite)
Lapis Lazuli (Tumbled Specimen)
Lapis Lazuli (Aggregate rock containing Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
Quartzite Pebbler
Quartzite (mainly SiO2)
Unakite
Epidotized Granite
Unakite
Unakite (Metasomatized Granodiorite)
Unakite
Epidotized Granite
Quartzite River Pebble
Quartzite (primarily SiO2)
Quartzite (Quartz-rich Cobble)
Quartzite (SiO2)
Unakite
Unakite (altered granitic rock)
Quartzite
Quartzite (primarily SiO2)
Unakite
Unakite Lepidolite
Schist
Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)
Unakite
Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) and KAlSi3O8)
Shungite
Non-crystalline carbon (similar to anthracite coal or meta-anthracite)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
Mica Schist
Mica Schist (Complex Silicate Rock)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Milky Quartz
Silicon Dioxide (SiO2)