Serpentine
Antigorite, Lizardite, or Chrysotile (Mg,Fe)3Si2O5(OH)4
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Serpentine
Antigorite, Lizardite, or Chrysotile (Mg,Fe)3Si2O5(OH)4
Quartzite
Quartzite (SiO2)
Schist
Mica Schist
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Gossan (Iron Hat)
Limonitic Gossan (predominantly FeO(OH)·nH2O)
Quartzite
Quartzite (SiO2)
Quartzite (or Quartz Rich Conglomerate)
Quartzite (SiO2 silicon dioxide)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Ferruginous Quartzite (Red Quartz)
Quartzite (SiO2 with Hematite/Iron impurities)
Quartzite Pebble
Quartzite (primarily SiO2)
Iolite (Cordierite)
Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18
Quartzite (Sugar Quartz)
Quartzite (primarily SiO2)
Quartzite (Iron-stained)
Quartzite (mostly SiO2 with Fe2O3 impurities)
Quartzite
Quartzite (primarily SiO2)
Pink Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartz (likely milky/gray variety)
Quartz (SiO₂)
Quartzite
Quartzite (primarily SiO2)
Eclogite
Eclogite (Pyrope-Omphacite rock)
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
Banded Chert / Banded Jasper (likely a variety of Chert/Chalcedony)
Chert (microcrystalline quartz)
Iron-stained Quartzite
Quartzite with Limonite/Hematite staining (SiO2 with FeO(OH)·nH2O)
Quartzite (River Pebble)
Metamorphosed Quartz Sandstone (SiO2)
Serpentine
Serpentine Group (primarily Antigorite or Lizardite), Mg3Si2O5(OH)4
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Aquamarine and clear quartz
Aquamarine (Be3Al2Si6O18), Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Green Aventurine (likely)
Silicon dioxide (SiO2) with fuchsitemica inclusions
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Pyrite, and Calcite)
Quartzite River Rock
Metamorphic Quartzite (primarily SiO2)
Greywacke (likely)
Greywacke (a type of sandstone)
Quartz (Crystal/Druzy Quartz)
Quartz (SiO₂)
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)
Unakite
Unakite (Altered Granite)