Feldspar
Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)
mineral
Category
Metamorphic (Localized) Or Sedimentary
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
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Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Point
Silicon Dioxide (SiO2)
mineral
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Milky Quartz/White Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
SiO2 (Silicon Dioxide)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Specular Hematite
Hematite (Fe2O3)
mineral
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
mineral
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide with inclusions (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Gneiss
Metamorphic Foliated Gneiss
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Foliated Metamorphic Rock (likely Gneiss or Schist)
Gneissic Metamorphic Rock
metamorphic
Red Jasper
Red Jasper (SiO2)
sedimentary
River Cobble (Gneiss/Schist mix)
Foliated Metamorphic Rock (Gneissic/Schistose)
metamorphic
Pyrite Cubes in Matrix
Iron Disulfide (FeS2) in Host Matrix
mineral side rock
Red Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Gneiss with Quartz Vein
Metamorphic Gneiss
metamorphic
Gneiss
Feldspar–quartz–mica gneiss, locally amphibole-bearing
metamorphic
Mica Schist
Schist (biotite/muscovite schist)
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Kyanite (Blue Kyanite)
Kyanite (Al2SiO5)
mineral
Specular Hematite (on Schist/Matrix)
Hematite (Alpha-Fe2O3)
mineral
Garnet in Matrix
Almandine or Spessartine Garnet in Quartz/Schist Matrix (X3Al2(SiO4)3)
metamorphic
Painted River Rock
Painted Quartzite or Smooth Siltstone
sedimentary
Gneiss
Metamorphic Gneiss
metamorphic
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Quartz
SiO2
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral