Shale
Shale (clastic sedimentary rock composed of silt and clay-sized particles)
sedimentary
Category
Sedimentary And Igneous
Browse sedimentary and igneous specimens identified by the Rock Identifier community.
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Shale
Fissile mudstone (Shale)
sedimentary
Shale
Argillite / Shaly Mudstone
sedimentary
Shale
Shale (Lutite)
sedimentary
Shale
Lutaceous sedimentary rock
sedimentary
Dalmation Jasper
Perthitic Feldspar with Arfvedsonite inclusions
igneous
Eclipse Stone (Kabamba Jasper)
Rhyolite with Aegirine (NaFe3+Si2O6)
metamorphic
Dalmatian Jasper (Dalmatian Stone)
Peralkaline Rock with Feldspar and Arfvedsonite
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (Mainly Quartz SiO2 and Feldspar KAlSi3O8)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic plutonic rock (SiO2 + Al2O3)
igneous
Granite
Granite (Phaneritic igneous rock)
igneous
Mahogany Obsidian
Volcanic Glass with Hematite or Magnetite inclusions (SiO2 + Fe2O3)
igneous
Granite
Phaneritic Felsic Intrusive Rock
igneous
Granite Pebble
Phaneritic Felsic Igneous Rock
igneous
Granite Pebble
Granite (a plutonic igneous rock composed primarily of quartz, feldspar, and mica/amphibole)
igneous
Banded Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Banded Gneiss
Gneiss (variable mineral composition)
metamorphic
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with Fe2+ impurities)
mineral
Marble
Metamorphosed Limestone/Dolomite
metamorphic
Amygdaloidal Basalt with Quartz Veining
Basalt (Extrusive Igneous Rock) with Quartz (SiO2) veining
igneous
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Gabbro (Stream-rounded Pebble)
Gabbro (Phaneritic Mafic Igneous Rock)
igneous
Gabbro
Plutonic mafic rock
igneous
Milky Quartz
Crystalline Quartz (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
igneous
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
sedimentary
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
sedimentary
Fragmented Sedimentary Pebble
Clastic Sedimentary Specimen
sedimentary
Granite
Granite (a plutonic rock)
Igneous