Biological Specimen (Domestic Dog)
Canis lupus familiaris
Organic (Non-rock)
Category
Sedimentary Rock (Possibly A Conglomerate Or Coarse Grained Sandstone)
Browse sedimentary rock (possibly a conglomerate or coarse grained sandstone) specimens identified by the Rock Identifier community.
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Unable to identify - Image contains non-geological items
N/A
Yellow Aventurine (or Citrine-colored Quartz)
Silicon Dioxide (SiO2) with inclusions
metamorphic
Red Jasper (possibly Carnelian)
Silicon Dioxide (SiO2) with Hematite impurities
mineral
Red Jasper (possibly Carnelian)
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
sedimentary
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Black Tourmaline (Schorl)
Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3(OH)4)
Mineral
Garnet (Almandine variety)
Almandine, Fe3Al2(SiO4)3
Mineral
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Granite
Granite
Igneous
Ferruginous Quartzite (Red Chert/Jasper-like)
Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)
metamorphic
Chert (Jasper/Chalcedony)
Microcrystalline Silica (SiO2)
sedimentary
Chert (Arrowhead/Tool variety)
Microcrystalline Quartz (SiO2)
sedimentary
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Mineral, Jewelry
Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with impurities)
Mineral
Gneiss
Gneiss
metamorphic
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
mineral
Pyrite
Iron Pyrite (FeS2)
Mineral
Jasper (Petrified Wood variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Quartz (beads)
SiO2 (Silicon Dioxide)
Mineral
White Marble
Calcite-rich Metasomatized Carbonate (CaCO3)
metamorphic
Pink Granite
Granite (Alkali-feldspar granite)
igneous
Jasper or Chert
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically a Worked Flint/Knapped Flake)
Chert / Flint (Microcrystalline Quartz, SiO2)
sedimentary
Pink Granite
Granite (Alkali-feldspar granite)
igneous
Amethyst (Agate/Chalcedony variety)
Silicon Dioxide (SiO2) with iron impurities
mineral
Gabbro
Gabbro (composed mainly of calcium-rich plagioclase feldspar and pyroxene)
igneous
Granite
Granite
Igneous
Granite (Pink/Potassium-rich)
Pink Granite (contains K-Feldspar, Quartz, and Plagioclase)
igneous
Granodiorite
Granodiorite (containing quartz, plagioclase, and biotite/hornblende)
igneous
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH
mineral
Granite
Granite
igneous
Granitic Pegmatite
Granite Pegmatite (typically containing Quartz SiO2, Feldspar KAlSi3O8, and Muscovite)
Igneous
Red Jasper (possibly banded)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Zircon
Zircon (ZrSiO4)
Mineral
Granitic Pegmatite
Phaneritic Granite with Potassium Feldspar (KAlSi3O8), Quartz (SiO2), and Plagioclase
igneous
Jasper Quarzite (possibly Lake Superior Agate mix)
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
sedimentary
River Cobble (Conglomerate context)
Unconsolidated Fluvial Alluvium (comprised of various lithologies like Quartzite, Granite, or Basalt)
sedimentary