Veined Quartzite / Vein-filled Sedimentary Rock
Siliciclastic rock with iron oxide-filled fractures
sedimentary
Category
Sedimentary Rock Or Mineral (Depending On Origin And Purity)
Browse sedimentary rock or mineral (depending on origin and purity) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock Or Mineral (Depending On Origin And Purity) in the encyclopedia
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Sandstone / Limestone
Sedimentary Rock (Quartz Sandstone or Calcareous Grainstone)
sedimentary
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Agate with Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Hag Stone (Adder Stone / Geode-bearing Pebble)
Sedimentary Rock with Cavity (often Quartzite, Limestone, or Sandstone)
sedimentary
Diamond (Faceted)
Carbon (C)
mineral
Likely graphite-rich schist
Graphite-bearing schist, composed mainly of graphite with possible mica and quartz
metamorphic
Quartz Sand/Gravel
Silicon Dioxide (SiO2)
sedimentary
Possible fossilized shell or coral fragment
Indeterminate biogenic carbonate, likely calcite (CaCO₃)
fossil
Quartz (Milky Quartz)
Silicon Dioxide (SiO₂)
mineral
Jadeite Bangle
NaAlSi2O6 (Jadeite pyroxene mineral aggregate)
gemstone
Quartz with Mica inclusion
Silicon Dioxide (SiO2) with Muscovite/Biotite inclusions
igneous
Dark gray-blue stone fragment
Unidentified fine-grained rock; the image is insufficient for a reliable species-level identification
igneous
Larimar
Pectolite (NaCa2Si3O8(OH))
Mineral variant / Gemstone
Sandstone (likely Arkosic)
Arenite (SiO2 based)
sedimentary
Quartz Geode or Druzy Quartz in Host Rock
Silicon Dioxide (SiO2)
mineral
Shale
Shale (Lutite)
sedimentary
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Painted pebble, likely a smooth river stone
Unidentified fine-grained natural rock; exact lithology cannot be determined from the image
sedimentary
Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic intrusive igneous rock
igneous
Sandstone (with cross-bedding)
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Jasper with Quartz Druzy
Silicon Dioxide (SiO2)
sedimentary
Limestone
Sedimentary Rock (Primarily Calcium Carbonate, CaCO3)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Diamond
Native Carbon (C)
mineral
Possibly tumbled black stone (uncertain; may be black glass or obsidian)
Undetermined; possible obsidian (natural volcanic glass, predominantly SiO₂)
mineral
Sandstone or Quartzite pebble
Sandstone (Quartz arenite) or Quartzite
sedimentary or metamorphic
Fossil Shell
Phylum Mollusca (Gastropod fossil)
fossil
Bauxite (Pisolitic Bauxite)
Bauxite (mixture of Hydrous Aluminum Oxides)
sedimentary
Sandstone
Sandstone (principally SiO2)
sedimentary
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Diamond
Carbon (C)
gemstone
Fossilized Bone
Petrified Bone (Fluorapatite / Calcium Phosphate replacement)
fossil
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Druzy / Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Schist
Schist (Foliated Metamorphic Rock)
metamorphic