Sandstone (Ferruginous)
Arenite (with Iron Oxide)
Category
Browse man made rock (technosol) specimens identified by the Rock Identifier community.
Sandstone (Ferruginous)
Arenite (with Iron Oxide)
Limestone
Calcium Carbonate (CaCO3)
Slate
Slate (foliated metamorphic rock)
Quartz Geode (Cracked Open)
Quartz (Silicon Dioxide - SiO2)
Sandstone
Arenite
Hypersthene
Hypersthene ((Mg,Fe)SiO₃)
Sandstone
Arenite (composed mainly of SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
Breciated Limestone with Calcite Veins
Sedimentary Breccia (CaCO3)
Granodiorite with Biotite Mica
Granodiorite (containing Quartz, Plagioclase Feldspar, and Biotite Mica)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Basalt (River Pebble)
Basalt
Basalt Riverstone
Basalt (Aphanitic Mafic Volcanic Rock)
Basalt (River Rock Cobble)
Extrusive mafic igneous rock
Basalt with Vesicles
Vesicular Basalt
Serpentinite (often containing Jadeite/Nephrite)
Antigorite-rich Serpentine Rock, (Mg, Fe)3Si2O5(OH)4
Basalt
Extrusive mafic rock (Basalt)
Vesicular Basalt with Amygdaloidal Infill
Basalt (Mafic Extrusive Igneous Rock)
Basalt
Basalt (composition of plagioclase, pyroxene, and olivine)
Basalt with Plagioclase Phenocrysts
Porphyritic Basalt
Basalt
Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)
Basalt with Secondary Mineral Inclusions
Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)
Basalt (with possible weathering or secondary mineral crust)
Basalt (Aphanitic Mafic Igneous Rock)
Basalt (Beach Pebble)
Extrusive mafic volcanic rock
Basalt
Basalt (Mafic volcanic rock)
Vesicular Basalt
Basalt with secondary mineral infilling (Amygdaloidal Basalt)
Basalt
Basalt
Basalt Pebble
Aphanitic Mafic Igneous Rock
Basalt
Extrusive mafic igneous rock
Basalt River Pebble
Basalt
Basalt (Vesicular or Scoriaceous)
Aphanitic Mafic Volcanic Rock
Basalt
Basalt (Mafic volcanic rock)
Basalt with Hematite staining
Extrusive mafic igneous rock with Fe2O3
Basalt River Pebble
Basalt
Basalt River Cobble
Vitreous aphanitic Basalt
Basalt with Calcite Veining
Aphanitic Mafic Igneous Rock (Basalt) with CaCO3
Vesicular Basalt
Extrusive mafic igneous rock
Basalt with Vesicular Texture
Basalt (SiO2 range 45-52%)
Basalt
Basalt (extrusive volcanic mafic rock)
Basalt with Scoria and potential Olivine/Pyroxene inclusions
Vesicular Basalt
Basalt
Basalt