Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Mineral Composite
Browse mineral composite specimens identified by the Rock Identifier community.
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Quartz (Common or Milky)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Yellow Aventurine (Yellow Quartzite)
Silicon Dioxide (SiO2) with inclusions
metamorphic
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Vesicular Basalt with Lichen
Vesicular Basalt
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Mineral in Metamorphic/Igneous Host
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Blue Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
metamorphic
Quartz (Grain/Pebble)
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Stone/Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Granite
Granite (Plutonic Igneous Rock)
igneous
Granite
Phaneritic Plutonic Felsic Rock (Granite)
igneous
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
sedimentary
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in Altered Host Rock
mineral
Geode (Unopened)
Silicon Dioxide (SiO2) in sedimentary vugs
sedimentary
Garnet
Garnet Group (e.g., Almandine Fe3Al2(SiO4)3)
mineral
Mixed rock and mineral gravel
Predominantly granite/granodiorite, basaltic rocks, quartz, and possible gneiss; exact identification is uncertain from the image
igneous
Mixed rock and mineral collection
Mixed lithologies; likely quartz, feldspar, basalt, granite, chert, sandstone, and metamorphic rocks
igneous, sedimentary, metamorphic, mineral
Amber with dark mineral/organic inclusions
Fossilized plant resin (amber; chiefly polymerized diterpenoid resin)
gemstone
Raw Amber / Resin Mineral
Succinite (Fossilized Tree Resin)
gemstone
Pyrite
Iron Disulfide (FeS2)
mineral
Granite
Intrusive Igneous Rock
igneous
Gossan (Iron Hat) with Quartz and Chlorite
Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite
Mineral/Metamorphic Substrate
Coarse Sandstone
Arenite (SiO2 based)
sedimentary
Basalt-Amugydule (Amygdaloidal Basalt)
Aphanitic Mafic Igneous Rock with Vesicle Infillings
igneous
Mica Schist
Metamorphic rock dominated by muscovite and/or biotite mica
metamorphic
Orbicular Granite
Orbicular Granitoid
igneous
Botryoidal Hematite (Iron Stone Conglomerate)
Hematite (Fe2O3) in sedimentary matrix
sedimentary
Hematite (beads)
Hematite (Fe₂O₃)
Mineral
Azurite-Malachite (often called Azerite Malachite or Azurmalachite)
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)
Mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Blue Topaz
Al2SiO4(F,OH)2
gemstone
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)
Mineral
Sandstone (likely Arkosic or Lithic Sandstone)
Arenite (SiO2 based with mineral inclusions)
sedimentary
Granite
Intrusive Igneous Rock
igneous
Fossilized Shark Tooth (Otodus)
Otodus sp. (calcium phosphate/hydroxylellite)
sedimentary
N/A (Non-Geological Specimen)
N/A
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)