Serpentine
Serpentinite (group of hydrous magnesium iron phyllosilicate minerals)
metamorphic
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Composed Of Multiple Minerals) in the encyclopedia
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Granite
Felsic Intrusive Igneous Rock
igneous
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Garnet-Mica Schist
Schist (variety with Almandine Garnet, Fe3Al2(SiO4)3)
metamorphic
Petrified Wood (Silicified Wood)
Silicified Wood / Silicon Dioxide (SiO2)
metamorphic
Basalt
Mafic Igneous Rock (composed primarily of plagioclase feldspar and pyroxene)
igneous
Gneiss
High-grade regional metamorphic rock (Foliated)
metamorphic
Schist with Biotite and Quartz
Biotite-Quartz Schist (Fe,Mg,Al silicate mix)
metamorphic
Greenstone with Epidote or Quartz veins
Metabasalt (Greenstone facies)
metamorphic
Petrified Wood
Silicified Wood (primarily SiO₂ - Silicon Dioxide)
metamorphic
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
sedimentary
Mica Schist
Mica Schist (primarily Muscovite and Biotite phyllosilicates)
metamorphic
Garnet
Almandine-Pyrope group, X3Y2(SiO4)3
mineral
Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Metamorphic Rock
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Lapis Lazuli
Lapis lazuli (a metamorphic rock primarily composed of Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite (River-worn Cobble)
Quartzite (composed primarily of SiO2)
metamorphic
Banded Slate
Slate (Metamorphosed Siltstone/Mudstone)
metamorphic
Greenschist
Greenschist (Chlorite Schist)
metamorphic
Mixed River Pebbles
Clastic Sedimentary Alluvial Deposit / Polymictic Conglomerate Clasts
sedimentary
Granite
Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, NaAlSi3O8)
igneous
Yellow Apatite Sphere (Polished)
Fluorapatite / Ca5(PO4)3F
mineral
Dalmatian Stone
Peralkaline Quartz-Feldspar Rock
igneous
Banded Gneiss
Gneiss (Metamorphic high-grade, predominantly SiO2, Al2O3, K2O, Na2O)
metamorphic
Peridotite
Peridotite (varieties include Dunite, Lherzolite, Harzburgite)
igneous
Quartzite (or Ferruginous Quartzite)
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)
metamorphic
Mica Schist with Quartz
Mica Schist (primarily Muscovite or Biotite sheet silicates)
metamorphic
Limonite-stained Quartz / Quartzite
Silicon Dioxide (SiO2) with iron hydroxides (FeO(OH)·nH2O)
sedimentary or metamorphic
Sandstone (Greywacke/Siltstone variant)
Clastic Sedimentary Rock (composed primarily of Quartz SiO2 and Feldspar)
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock (composed of orthoclase, quartz, and plagioclase)
igneous
Granite
Phaneritic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)
igneous
Serpentine
Serpentinite (rock) containing serpentine minerals (e.g., Antigorite, Lizardite, Chrysotile)
Metamorphic rock
Granite
Granite (Phaneritic Igneous Rock)
igneous
Lapis Lazuli
Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Epidote with quartz/feldspar
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
metamorphic
Banded Sandstone
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Quartz with Schist Inclusion
Crystalline Silicon Dioxide (SiO2) with Muscovite/Biotite Schist
metamorphic
Sandstone
Arenite
Sedimentary