Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
igneous
Category
Metamorphic (Altered Igneous Rock)
Browse metamorphic (altered igneous rock) specimens identified by the Rock Identifier community.
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Granitoid Gneiss with Feldspar Vein
Gneiss (High-grade Metamorphic Rock) with Potassium Feldspar (KAlSi3O8)
metamorphic
Black Sand (Magnetite Sand)
Magnetite-rich Placers (Fe3O4)
sedimentary
Gneiss
Gneiss (High-grade Regional Metamorphism)
metamorphic
Gneiss
Gneiss
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within metamorphic/igneous matrix
igneous/metamorphic
Gneiss
Gneiss
metamorphic
Schist
Chlorite/Mica Schist
metamorphic
Sandstone (Micaceous Sandstone)
Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)
sedimentary
Granite Gneiss
Gneiss (quartz-feldspar dominated)
metamorphic
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
mineral
Biotite Mica in Host Rock
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Gneiss (Gneissic Granite)
Gneiss
metamorphic
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic
Basalt (Porphyritic)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Gneiss
Gneiss
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss with Quartz Vein
Gneiss containing Quartz (SiO2) filler
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Greenstone
Metabasalt (Greenstone Facies)
metamorphic
Eclogite
Eclogite (Omphacite-Garnet rock)
metamorphic
Gneissic Schist
Foliated Metamorphic Rock (Schist/Gneiss transition)
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic