Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Category
Man Made Metamorphic Style Composite
Browse man made metamorphic style composite specimens identified by the Rock Identifier community.
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Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Schist
Schist (Crystalline metamorphic rock)
metamorphic
Pink Calcite
Calcium Carbonate (CaCO3)
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Arenite
metamorphic
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartzite
Metamorphic Quartzite
metamorphic
Quartzite
Metamorphic Quartzite
metamorphic
Quartzite
Metamorphic Quartzite
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Sand and Gravel (Quartz-rich)
Unconsolidated fluvial/beach sediment (primarily Silica/SiO2)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Quartz Pebble (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartzite with Hematite staining
Quartzite (SiO2)
metamorphic
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartzite pebble
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Sandstone
Arenite (SiO2 + various cementing minerals)
sedimentary
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Igneous
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Granite
Phaneritic Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)
igneous
Granite
Phaneritic Igneous Rock (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase)
igneous
Sandstone Concretion
Clastic Sedimentary Rock - Quartz Arenite / Sandstone
sedimentary
Orthoclase Feldspar
Potassium Feldspar (KAlSi3O8)
mineral