Quartzite with Epidote/Chlorite Inclusion
Metamorphic Quartzite (SiO2 with accessory silicate minerals)
metamorphic
Category
Metamorphic Rock (For Both Nephrite And Jadeite)
Browse metamorphic rock (for both nephrite and jadeite) specimens identified by the Rock Identifier community.
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Quartzite River Pebble
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Schist
Mica Schist (contains muscovite/biotite and quartz)
metamorphic
Eclogite
Eclogite (High-pressure metamorphic rock)
metamorphic
Rounded gray metamorphic rock, likely quartzite or gneiss
Quartz-rich metamorphic rock; exact identification is uncertain from the photograph
metamorphic
Quartz-veined Metamorphic Rock
Quartz-veined Schist or Gneiss
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Rounded gray stone, likely basalt or andesite
Fine-grained mafic to intermediate volcanic rock; likely basalt (plagioclase ± pyroxene, possibly olivine)
igneous
Green Aventurine
Quartz with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Green Gneiss
Metamorphic Gneiss
metamorphic
Granite-like granitic rock
Crystalline plutonic rock, primarily quartz, feldspar, and mica/amphibole
igneous
Quartz-veined Metamorphic Pebble
Silicate-rich metamorphic rock with quartz veins (SiO2)
metamorphic
Quartzite with Feldspar and Mica (Granitic Gneiss Pebble)
Metamorphic Rock / Quartzite / Granitic Gneiss
metamorphic
Gneiss
Foliated Metamorphic Rock (Gneiss)
metamorphic
Garnet Schist
Almandine Garnet-bearing Mica Schist
metamorphic
Tanzanite
Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))
gemstone
Honey calcite (likely rough cleavage fragment)
Calcite, calcium carbonate (CaCO₃)
mineral
Quartz Vein in Schist / Gneiss Metamorphic Matrix
Silicon Dioxide (SiO2) in metamorphic schist host rock
metamorphic
Quartzite with Quartz Veining
Metamorphic Quartzite (SiO2)
metamorphic
Schist
Mica Schist (Medium-grade Metamorphic Rock)
Metamorphic
Tiger's Iron
Pseudomorphic Quartz Aggregate (contains SiO2 with Fe2O3 and FeOOH)
metamorphic
Small red-brown mineral or rock fragment
Unidentified; possibly iron-oxide-rich jasper, garnet, or weathered sulfide
mineral
Milky Quartz with Chlorite Schist Inclusions
Quartz (SiO2) with Chlorite Group silicates (typically (Mg,Fe)3(Si,Al)4O10(OH)2)
metamorphic
Slate with Quartz Vein
Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)
metamorphic
Serpentine
Antigorite/Lizardite/Chrysotile group, Mg3Si2O5(OH)4
metamorphic
Rounded gray river pebble, likely basalt or andesite
Fine-grained mafic volcanic rock; commonly basalt (plagioclase, pyroxene, and possible olivine)
igneous
Banded Metamorphic Rock (likely Quartzite or Serpentinite/Soapstone)
Metamorphic Rock (possibly a banded Quartzite or a foliated Serpentinite/Talc Schist based on appearance, general term for such a rock is 'Banded Metamorphic Rock' or 'Gneiss' if pronounced banding of different minerals)
Metamorphic
Muscovite Mica
Muscovite / KAl2(AlSi3O10)(OH)2
mineral
Garnet (Almandine/Pyrope series)
Garnet Group - X3Y2(SiO4)3
mineral
Pyrite
Pyrite (Iron sulfide, FeS₂)
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
mineral
Pyrite Schist
Metamorphic rock containing FeS2 (Pyrite) with mica and quartz
metamorphic
Eclogite
Eclogite (Omphacite-Garnet Rock)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Serpentine
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Quartzite with Quartz Veins
Metamorphic Quartz-rich Rock (SiO2)
metamorphic
Small quartz-rich mineral fragment
Quartz (SiO₂), possibly milky or chalcedonic quartz
mineral
Metaconglomerate
Metaconglomerate (Quartzite conglomerate)
metamorphic
Garnet-Mica Schist
Garnetiferous Porphyroblastic Schist
metamorphic
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary