Basalt Pebble
Extrusive mafic volcanic rock
igneous
Category
Not A Rock
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Basalt
Extrusive Mafic Igneous Rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt River Pebble
Basalt (Mafic volcanic rock)
igneous
Basalt River Pebble
Basaltic extrusive igneous rock
igneous
Basalt Pebble
Basalt (Mafic Igneous Rock)
igneous
Basalt (River Pebble)
Extrusive Mafic Igneous Rock
igneous
Granodiorite
Intermediate Phaneritic Plutonic Rock
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt River Pebble
Aphanitic mafic volcanic rock
igneous
Basalt River Stone
Aphanitic Mafic Igneous Rock
igneous
Vesicular Basalt
Extrusive Mafic Volcanic Rock
igneous
Basalt River Stone
Aphanitic Mafic Igneous Rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt (River Stone)
Extrusive mafic igneous rock
igneous
Basalt
Basalt (Mafic volcanic rock)
Igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
igneous
Scoria (Lava Rock)
Scoria (Vesicular Basaltic Rock)
Igneous
Scoria (Lava Rock)
Mafic Vesicular Volcanic Rock
igneous
Scoria (Lava Rock)
Scoria (Mafic Volcanic Rock)
igneous
Lava Rock (Scoria)
Scoria (Mafic volcanic rock)
igneous
Lava Rock (Basalt)
Basalt (extrusive igneous rock)
igneous
Scoria (Lava Rock)
Scoria (vesicular basaltic rock)
igneous
Weathered Sandstone with Algae Growth
Arenite
sedimentary
Sandstone (likely Arkose or Lithic)
Clastic sedimentary rock (SiO2 + impurities)
sedimentary
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Sandstone (lithic wacke/conglomerate mix)
Clastic Sedimentary Rock (SiO2 with lithic fragments)
sedimentary
Sandstone
Arenite
sedimentary
River Rock (Quartz-dominated)
Silicon Dioxide (SiO2) mixture with varied clastic sediments
sedimentary (alluvial deposit)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Eclogite garnet in matrix
Eclogite (Garnet-Omphacite rock)
metamorphic
Sandstone
Sandstone (Clastic Sedimentary Rock)
Sedimentary Rock
Sandstone (likely a river or beach pebble)
Sandstone (a clastic sedimentary rock)
Sedimentary Rock
Gneiss
Gneiss (a type of metamorphic rock)
Metamorphic Rock
Basalt
Mafic extrusive igneous rock
igneous
Basalt
Basalt
igneous
Quartzite
Quartzite (SiO2)
metamorphic