Dalmatian Jasper / Dalmatian Stone
Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)
igneous
Category
Metamorphic Rock (Specifically A Rock Composed Of Minerals)
Browse metamorphic rock (specifically a rock composed of minerals) specimens identified by the Rock Identifier community.
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Gneiss (specifically a granitic gneiss cobble)
Gneiss (high-grade regional metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Serpentine
Serpentine Group (Mg3Si2O5(OH)4)
metamorphic
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Gneiss (specifically a Banded Gneiss pebble)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
mineral
Lapis Lazuli (Tumbled Stone)
Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (Lazulite-rich Metamorphic Rock)
metamorphic
Nephrite Jade
Nephrite
Mineral/Rock
Quartz-rich metamorphic rock, likely milky quartz or quartzite
Quartz (SiO₂); possibly quartzite composed predominantly of recrystallized quartz
metamorphic
Granite Gneiss
Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)
metamorphic
Muscovite Schist
Metamorphic rock primarily composed of quartz and muscovite mica
metamorphic
Hypersthene
Hypersthene ((Mg,Fe)SiO₃)
Mineral
Pink Granite
Phaneritic Plutonic Felsic Rock (Granite)
igneous
Greenstone / Greenschist
Greenschist (composed of Chlorite, Epidote, and Actinolite)
metamorphic
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Sandstone
Arenite (Sedimentary Rock)
sedimentary
Chakra Crystal Bracelet
Mixed Mineral Assortment
gemstone
Slate
Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)
metamorphic
Labradorite
(Ca, Na)(Al, Si)4O8
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18)
mineral
Weathered sandstone or metasedimentary rock
Quartz-rich sandstone; possibly weakly metamorphosed quartzite
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Serpentine
(Mg,Fe)3Si2O5(OH)4
metamorphic
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Inukshuk Rock Sculpture (composed of Granite, Slate, and Amethyst)
Silicon Dioxide (Amethyst portion, SiO2) with mixed silicate rock assemblage
mineral
Bauxite
Bauxite (principal ore of aluminum, primarily Al(OH)3)
sedimentary
Granite
Granite (composed mainly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Blue Topaz
Aluminum Silicate Fluoride Hydroxide - Al2SiO4(F,OH)2
gemstone
River Stone / Pebble
Clastic Sediment (composed largely of Quartz, Feldspar, and various rock fragments)
Mineral, Sediment
Green Schist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
metamorphic
Granite
Granite (composed of Quartz, Feldspar, and Mica)
igneous
Gneiss (specifically Pink Gneiss)
Gneiss (high-grade regional metamorphic rock)
metamorphic
Marble
Metamorphic Limestone (CaCO3)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Granite with Pyrite or Mica
Phaneritic intrusive igneous rock
igneous
Seashell Fragment
Calcium Carbonate (CaCO3) in the form of Aragonite or Calcite
mineral
Granite
Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)
igneous
Gneiss
Metamorphic Gneiss
metamorphic