Basalt with Scoria and potential Olivine/Pyroxene inclusions
Vesicular Basalt
igneous
Category
Mineral Based Alloy (Anthropogenic)
Browse mineral based alloy (anthropogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Based Alloy (Anthropogenic) in the encyclopedia
View all →
Crushed Limestone Aggregate
Limestone (Calcium Carbonate, CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Basalt (River Pebble)
Extrusive mafic igneous rock
igneous
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Basalt River Pebble
Mafic Igneous Rock (Fine-grained Basalt)
igneous
Granite
Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Basalt River Pebble
Extrusive Mafic Basalt
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt River Cobble
Basalt (Mafic Extrusive Igneous Rock)
igneous
Chert (Gravel)
Microcrystalline silica (SiO2)
sedimentary
Basalt Pebble
Aphanitic mafic volcanic rock
igneous
Quartzite in Conglomerate
Clastic Sedimentary Rock with Silicon Dioxide (SiO2) inclusions
sedimentary
Basalt
Basalt (predominantly Plagioclase Feldspar and Pyroxene)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Chert (Iron-Stained)
Microcrystalline Silica (SiO2)
sedimentary
Basalt
Basalt
igneous
Granodiorite
Granodiorite (Intermediate plutonic rock)
igneous
Reddish Brown Claystone or Siltstone
Argillite / Siltstone / Claystone
sedimentary
Basalt
Basalt
igneous
Basalt
Basalt (extrusive volcanic rock)
igneous
Chert (variously known as Flint or River Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Basalt (Polished)
Basalt (Mafic Extrusive Igneous Rock)
Igneous
Basalt
Extrusive mafic igneous rock
igneous
Siltstone
Siltstone (primarily composed of SiO2, Al2O3, and phyllosilicates)
sedimentary
Vesicular Basalt (or Scoria)
Vesicular Basalt
igneous
Basalt
Basalt (comprising Plagioclase feldspar, Pyroxene, and Olivine)
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
igneous
Crushed Rock (Basalt)
Basalt (Aphanitic Mafic Igneous Rock)
Igneous
Granite
Phaneritic plutonic rock (composed of quartz, alkali feldspar, and plagioclase)
igneous
Basalt River Pebble
Basalt
igneous
Porphyritic Basalt
Porphyritic Basalt (Mafic Igneous Rock)
igneous
Limestone Pebble
Limestone (Calcium Carbonate, CaCO3)
sedimentary
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with Bioclastic Inclusions
sedimentary
Dragon Blood Jasper
Quartz (SiO2) with Epidote and Piedmontite inclusions
sedimentary
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
igneous
Vesicular Basalt
Aphanitic Mafic Igneous Rock (mainly Plagioclase and Pyroxene)
igneous
Basalt (with possible Serpentinization)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous