Granite
Granite (Felsic Plutonic Rock)
igneous
Category
Organic Structure (Not A Rock)
Browse organic structure (not a rock) specimens identified by the Rock Identifier community.
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Diorite (River Cobble)
Phaneritic Intermediate Plutonic Rock
igneous
Basalt (River Stone/Pebble)
Basalt (Extrusive Igneous Rock)
igneous
Andesite
Andesite (Intermediate Volcanic Rock)
igneous
Andesite Porphyry
Andesite (extrusive volcanic rock)
igneous
Vesicular Sandstone
Clastic Sedimentary Rock (Sandstone)
sedimentary
Granite
Phaneritic Plutonic Felsic Rock
igneous
Puddingstone (Conglomerate)
Conglomerate (clastic sedimentary rock)
sedimentary
Tiger's Eye
Silicon dioxide (SiO2) with fibrous inclusions of crocidolite
Mineral
Sandstone
Arenite (SiO2 with various cementing agents)
sedimentary
Gabbro
Gabbro (Mafic Plutonic Rock)
igneous
Granite
Felsic Intrusive Igneous Rock
igneous
Conglomerate
Clastic sedimentary rock (Psephite)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Gabbro
Phaneritic Mafic Igneous Rock
igneous
Granite
Granite (Phaneritic igneous rock)
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Diorite (River Rock)
Intermediate plutonic igneous rock
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cement)
sedimentary
Quartzite with Iron Mineral Banding
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) staining
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Granite
Granitic intrusive igneous rock
igneous
Granite
Granite (Felsic Plutonic Rock)
Igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Granite Cobble
Phaneritic Felsic Igneous Rock
igneous
Granite
Phaneritic Plutonic Felsic Rock
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
River Cobble (Basaltic/Andesitic)
Mafic Igneous Porphyritic Rock
igneous
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
River Pebble Gravel
Hydrothermally modified Clastic Sediment (mainly Quartzite and Chert)
sedimentary
Fossilized Coral (Coquina/Limestone)
Cnidaria Anthozoa (Fossilized)
sedimentary