Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 in Matrix)
metamorphic
Category
Mineral, Specifically A Detrital Grain
Browse mineral, specifically a detrital grain specimens identified by the Rock Identifier community.
Flagstone (Sandstone)
Clastic Sedimentary Rock (composed of quartz and feldspar)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Fe2O3 cement)
sedimentary
Red Sandstone
Arenite with Hematite (Fe2O3) cement
sedimentary
Concretion (Sandstone)
Sandstone Concretion
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Sandstone Concretion
Sedimentary Concretion (SiO2 or CaCO3 cemented)
sedimentary
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Diorite (Polished River Pebble)
Diorite (Intermediate intrusive igneous rock)
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)
igneous
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Quartz (Sea Glass or River-worn Pebble style)
Silicon Dioxide (SiO2)
mineral
Jasper (Iron-stained)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Basalt
Basalt (Mafic Extrusive)
igneous
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
igneous
Sandstone
Sandstone (Clastic Sedimentary Rock)
Sedimentary Rock
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase Feldspar)
igneous
Quartzite
Metamorphic Quartz Sandstone (SiO2)
metamorphic
Red Sandstone
Arenite (Fe2O3 rich)
sedimentary
Vesicular Basalt
Vesicular Basalt (rich in silicate minerals mostly Plagioclase and Pyroxene)
igneous
Micaceous Sandstone or Quartzite
Sandstone (lithified quartz grains, often with mica) or Quartzite (metamorphosed sandstone)
Sedimentary or Metamorphic
Vesicular Basalt with Quartz
Vesicular Basalt (SiO2 inclusions)
igneous
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
sedimentary
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Red Sandstone
Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)
sedimentary
Basalt
Basalt (a mafic extrusive igneous rock)
Igneous
Yellow Aventurine
Quartzite with inclusions (SiO2)
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Mineral in Metamorphic/Igneous Host
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite
Granite (Phaneritic Quartz-Feldspar intrusive rock)
Igneous
Sandstone (River Pebble)
Arenite (primarily SiO2)
sedimentary
Sandstone with Quarzite clasts
Arenite (SiO2 based)
sedimentary
Sandstone
Clastic Sedimentary Rock (primarily Quartz, SiO2)
sedimentary
Red Siltstone
Siltstone (composed mainly of SiO2 and Fe2O3)
sedimentary
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (70–75% SiO2)
igneous
Desert Rose
Gypsum (variety Selenite) or Barite, CaSO4·2H2O
mineral