Basalt with Plagioclase Phenocrysts (Porphyritic Basalt)
Porphyritic Basalt (Mafic volcanic rock)
Category
Browse man made rock (technosol) specimens identified by the Rock Identifier community.
Basalt with Plagioclase Phenocrysts (Porphyritic Basalt)
Porphyritic Basalt (Mafic volcanic rock)
Vesicular Basalt
Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 (Pyroxene) and (Ca,Na)Al(Al,Si)Si2O8 (Plagioclase Feldspar)
Basalt Pebble
Extrusive Mafic Volcanic Rock
Basalt (Fieldstone)
Basalt
Grey Basalt Pebble
Basalt (Aphanitic Mafic Volcanic Rock)
Basalt
Mafic extrusive igneous rock
Basalt River Stone
Basalt (Mafic volcanic rock)
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Basalt (Vesicular/Amygdaloidal or Water-Worn)
Basalt
Basalt
Basalt (Extrusive Mafic Igneous)
Vesicular Basalt
Extrusive Basalt (Mafic Silicate)
Basalt Pebble
Basalt (Mafic volcanic rock)
Basalt River Stone
Basalt
Basalt (River Stone)
Extrusive Mafic Igneous Rock (Basalt)
Basalt with vesicles/amygdules
Basalt (containing volcanic glass and plagioclase)
Vesicular Basalt
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Basalt (Polished River Stone)
Aphanitic Mafic Igneous Rock
Basalt River Stone
Basalt
Basalt Pebble
Vesicular Basalt
Basalt (with possible Olivine inclusions)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Basalt Pebble
Extrusive Mafic Igneous Rock
Basalt
Basalt
Basalt (Polished River Stone)
Basalt (Extrusive Mafic Volcanic Rock)
Basalt (Crushed Stone)
Basalt (Mafic Extrusive Igneous Rock)
River Basalt (Cobble)
Mafic Igneous Rock (Fine-grained Basalt)
Unakite
Epidotized Granite
Lapis Lazuli (Low Grade)
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2)
Green Quartzite
Quartzite (primarily SiO2 with chlorite inclusions)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Fossil Bivalve Shell
Class Bivalvia (e.g., Veneriidae family)
Granite
Phaneritic Felsic Igneous Rock
Quartzite
Quartzite (primarily SiO2)
Sandstone
Sandstone (clastic sedimentary rock, composed predominantly of sand-sized minerals or rock fragments)
River Rock
Sedimentary Rock (various compositions)
Druzy Quartz Geode (Vug)
Silicon Dioxide (SiO2)
Vesicular Basalt
Extrusive Mafic Igneous Rock (Vesicular Basalt)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Conglomerate
Conglomerate (a clastic sedimentary rock)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Basalt (Concrete Aggregate)
Basalt (Mafic volcanic rock)
Limestone
Calcareous sedimentary rock (CaCO3)