Garnet
Garnet group species (likely Almandine, Fe3Al2(SiO4)3)
mineral
Category
Metamorphic Or Sedimentary
Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.
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Epidote with Feldspar/Quartz (Unakite-like)
Epidotized Granite (Ca2(Al,Fe)3(SiO4)3(OH) + KAlSi3O8)
metamorphic
Quartzite River Rock
Quartzite (primarily SiO2)
metamorphic
Seraphinite
Clinochlore (a variety of the chlorite group)
mineral
Pink Quartzite
Quartzite (principally Silicon Dioxide, SiO2)
metamorphic
Greenstone / Greenschist
Greenschist (composed primarily of Chlorite, Epidote, and Actinolite)
metamorphic
Schist
Mica Schist (primarily composed of quartz, feldspar, and mica)
metamorphic
Schist
Mica Schist
metamorphic
Mica Schist
Muscovite/Biotite Schist
metamorphic
Sandstone (Quartz-rich)
Arenite (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
Mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Metamorphic Rock (variety of Quartz)
Banded Gneiss with Quartz Vein
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Marble
Metamorphic rock primarily composed of Calcite (CaCO3)
metamorphic
Quartzite (River Pebble)
Metamorphic rock consisting primarily of Quartz (SiO2)
metamorphic
Iron-stained Quartzite
Metamorphic Quartz (SiO2) with limonite/hematite staining
metamorphic
Quartzite
Metamorphic rock primarily composed of Quartz (SiO2)
metamorphic
Quartzite with Iron Inclusions
Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)
metamorphic
Quartzite
Metamorphic rock predominantly composed of Quartz (SiO2)
metamorphic
Lapis Lazuli
Lazurite-rich metamorphic rock (complex silicate)
metamorphic
Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartzite Pebble
Metamorphic rock predominantly composed of Quartz (SiO2)
metamorphic
Quartzite
Metamorphic rock primarily composed of Quartz (SiO2)
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within a metamorphic matrix
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of Muscovite, Chlorite, and Quartz)
metamorphic
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Iolite-bearing Gneiss (Cordierite)
Cordierite (Mg2Al4Si5O18) in Gneiss matrix
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
Mineral
Green Quartzite (Tumbled)
Metamorphosed Quartz-rich Sandstone
metamorphic
Orange Quartzite
Quartzite (primarily SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Soapstone (Talc Steatite) Carving
Steatite (Hydrous magnesium silicate, Mg3Si4O10(OH)2)
metamorphic
Quartzite
Quartzite (mostly SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Green Quartzite
Quartzite (SiO2)
metamorphic
Pink Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Pink Quartzite
Quartzite (mainly SiO2 with iron oxide impurities)
metamorphic
Schist (with Iron Oxide)
Mica Schist
metamorphic