Schist (likely Mica Schist)
Mica Schist
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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Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Red Sandstone
Arenite (primarily composed of SiO2 with Fe2O3 cement)
sedimentary
Sandstone
Sandstone (SiO2-rich framework with variable matrix)
sedimentary
Sandstone pebble
Sandstone (SiO2 with iron oxides)
sedimentary
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Granite Pebble
Granite
igneous
Granite cobble
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Pebble (likely Quartzite or Chert)
Clastic Sediment, potentially composed of SiO₂ (Quartz)
Mineral, Sediment
Greenstone
Protolith: Basaltic rock
metamorphic
Greenstone (Greenschist facies)
Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)
metamorphic
Granite
Intrusive igneous rock
igneous
Quartzite
Quartzite (composed primarily of Silica, SiO2)
metamorphic
Greenschist / Greenstone
Greenschist (composed of chlorite, epidote, actinolite, albite)
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Dalmatian Stone
Dalmatian Stone (Felsic Igneous Rock)
igneous
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Quartzite (River Pebble)
Meta-quartzite (composed primarily of SiO2)
metamorphic
Uncertain polished mineral specimen
Indeterminate; possibly quartz or feldspar with iron-oxide staining
mineral
Gneiss
Feldspathic biotite gneiss; a high-grade metamorphic rock composed mainly of quartz, feldspar, and mica
metamorphic
Conglomeratic concrete or asphalt aggregate surface with dark bituminous chunks
Polymictic gravel aggregate; dark pieces likely bitumen/asphalt, not a natural rock
sedimentary
Weathered quartz-rich metamorphic rock
Likely quartzite or quartz-rich gneiss; exact identification requires a fresh surface and testing
metamorphic
Schist
Mica Schist (Metamorphic rock)
metamorphic
Sandstone
Arenicola (comprising mostly Quartz, SiO2)
sedimentary
Shale
Shale (Sedimentary rock composed of mud/clay minerals)
sedimentary
Granite
Granite
igneous
Schist
Mica Schist
metamorphic
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Dendritic limestone or marble slab
Manganese-oxide dendrites in carbonate rock, likely calcite (CaCO₃)
metamorphic
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
sedimentary
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite with Chlorite Bands
Meta-quartzite with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8
metamorphic
Chert (Pebble)
Silicon Dioxide (SiO2)
sedimentary
Serpentinite
Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)
metamorphic
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Unakite
Granitic rock composed of orthoclase, epidote, and quartz
metamorphic
Nuummite
Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite)
metamorphic
Quartz with Mica / Chlorite Inclusion
Silicon Dioxide (SiO2) with Phyllosilicate minerals
metamorphic
Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions
igneous
Quartzite Pebble
Quartzite (composed primarily of Silica, SiO2)
metamorphic
Rounded quartz-rich pebble
Quartzite (probable), composed predominantly of quartz (SiO₂)
metamorphic
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock
igneous