Vesicular Basalt with Xenocrysts
Mafic Igneous Plutonic/Extrusive Complex
igneous
Category
Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)
Browse metamorphic rock (for nephrite and some jadeite); mineral (for jadeite) specimens identified by the Rock Identifier community.
Red Sandstone (Arkose)
Clastic Sedimentary Rock (Lithic Arkose)
sedimentary
Grey River Stone (Gneiss/Schist mix)
Foliated Metamorphic Rock (variable mineral formula)
metamorphic
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Quartz Vein in Pelite (Metamorphic Rock)
Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)
metamorphic
Greenstone
Greenschist (primarily composed of chlorite, actinolite, and epidote)
metamorphic
Pebble (likely Quartz or Chert)
SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.
Sedimentary Rock
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
mineral
Greenstone
Metabasalt / Chlorite-Epidote Schist
metamorphic
Ruby in Zoisite
Ruby (α-Al2O3) embedded in Zoisite (Ca2Al3(SiO4)3(OH)) with some Hornblende
Metamorphic Rock (composed of multiple minerals)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Mineral
Kambaba Jasper (Crocodile Jasper)
Stromatolitic Rhyolite/Jasper (SiO2)
sedimentary
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)
mineral
Granatic Pegmatite
Pegmatitic Granite
igneous
Sapphire
Corundum (Al2O3)
mineral
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Smoky Quartz
Smoky Quartz (SiO ₂)
Mineral
Sandstone (likely Arkosic or Quartzose)
Sandstone (SiO2 dominated)
sedimentary
Schist
Mica Schist
metamorphic
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Tiger's Eye (Rough)
Macrocrystalline Quartz (SiO2 with inclusions of Crocidolite)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Amazonite
Microcline (KAlSi3O8) with lead inclusions
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
mineral
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Red Garnet (Pyrope or Almandine)
Magnesium aluminum silicate (Mg3Al2(SiO4)3) or Iron aluminum silicate (Fe3Al2(SiO4)3)
mineral
Shale or Slate with Quartz Veins
Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins
Metamorphic, likely Sedimentary with Quartz veins
Pyrite
Iron Sulfide (FeS2)
mineral
Banded Gneiss
Gneiss (pronounced 'nice')
metamorphic
Rhodochrosite in Quartz
Manganese Carbonate (MnCO3)
mineral
Ironstone Concretion (Ironstone Gourd)
Limonite/Goethite Concretion (FeOO(H))
sedimentary
Porphyry (Flower Stone)
Porphyritic Basalt or Andesite
igneous
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Stream-rounded Cobble)
Arenite (composed primarily of SiO2, Silica)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral