Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
metamorphic
Category
Mineral In Metamorphic Rock
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
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Mica Schist
Mica Schist (Quartz-Biotite-Muscovite Schist)
metamorphic
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
mineral
Yellow Quartz (Citrine / Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Diorite Gneiss
Foliated Diorite Gneiss
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Mica Schist
Mica Schist (Intermediate-grade Metamorphic Rock)
metamorphic
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
Mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Ruby in Zoisite
Ruby (Corundum, Al2O3) in Zoisite (Calcium aluminum silicate hydroxide, Ca2Al3(SiO4)3(OH)) with some Hornblende
Metamorphic Rock (specifically a rock composed of minerals)
Weathered quartz-rich pebble (tentative)
Likely quartz/chalcedony, SiO₂, possibly iron-stained
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Banded gneiss, probably granitic gneiss
Foliated gneiss composed mainly of quartz (SiO₂), feldspar—orthoclase/microcline and plagioclase—and dark mica, commonly biotite K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂
metamorphic
Stichtite in Serpentinite (Atlantisite)
Mg6Cr2CO16(OH)16·4H2O in Mg3Si2O5(OH)4
metamorphic
Quartz-rich river pebble, likely milky quartz
Milky quartz (SiO₂), possibly a quartzite or quartz-rich silicate pebble
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate (specifically Eye Agate / Chalcedony)
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Quartz (Milky/Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz-rich rock fragment, possibly granite or quartzite
Primarily quartz (SiO₂), with possible feldspar and iron-oxide staining
igneous or metamorphic
Banded Slate
Metamorphic Argillite / Slate
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Yellow Quartzite Pebble
Quartzite (primarily Silicon Dioxide - SiO2)
metamorphic
Quartz Pebble
Crystalline Silica (SiO2)
sedimentary
Ruby
Corundum (Al2O3)
mineral
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
mineral
River Cobble (Salt and Pepper Gneiss)
Gneiss (High-grade regional metamorphic rock)
metamorphic
Quartzite with Hematite
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)
metamorphic
Blue Apatite
Calcium Fluorophosphate - Ca5(PO4)3F
mineral
Quartzite with Schist Inclusions
Metamorphosed Quartzite (SiO2) with minor mica/chlorite schist
metamorphic
Quartzite Pebble (with possible inclusion)
Metamorphosed Quartz Sandstone (SiO2 with impurities)
metamorphic
Banded Gneiss
Gneiss (variable mineral composition)
metamorphic
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Mineral
Blue Sapphire (Raw)
Corundum (Al2O3)
mineral
Quartz / Vein Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Gneiss
Gneiss
metamorphic
Quartz Crystal Cluster (with Selenite Satin Spar)
Silicon Dioxide (SiO2)
mineral
Rounded pale quartz-rich pebble
Likely milky quartz or quartzite (SiO₂); exact identification is uncertain from the photograph
mineral
Gold Ore
Native Gold (Au) in Matrix
mineral