Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Category
Granite
Browse granite specimens identified by the Rock Identifier community.
Learn about Granite in the encyclopedia
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Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Silty Sand / Loam
Unconsolidated Clastic Sediment (Silicon Dioxide / Alumino-silicates mixture)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon dioxide (SiO2)
Mineral
Concrete
Anthropogenic Conglomerate
sedimentary
Gneiss (Granitic Gneiss)
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
Quartz (Silicon Dioxide), Formula: SiO2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
mineral
Blue Topaz
Aluminum Silicate Fluoride Hydroxide Al2SiO4(F,OH)2
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Unakite
Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) and KAlSi3O8)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO₂)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Granodiorite
Phaneritic-textured Intrusive Granodiorite
igneous
Biotite on Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Magnetite (or Magnetic Iron Ore)
Magnetite (Fe3O4)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Clear Quartz Crystal (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with Iron traces)
mineral
Quartz in Matrix (possibly with Biotite or Hornblende)
Quartz (Silicon Dioxide, SiO2) in Granitic Matrix
igneous
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Smoky Quartz (SiO2)
mineral