Travertine
Calcium Carbonate (CaCO3)
sedimentary
Category
Synthetic Polymer (Synthetic Material)
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Learn about Synthetic Polymer (Synthetic Material) in the encyclopedia
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Iron-Stained Quartz (Red Quartz)
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
Granite
Granite (Plutonic Igneous Rock)
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite (SiO2 dominated sandstone)
sedimentary
Sandstone pebble
Sandstone (siliciclastic sedimentary rock)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble with Drusy/Crystalline Pocket
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite/Arkose)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Sandstone
Sandstone (Arenite)
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt with Secondary Mineral Amygdules
igneous
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Sandstone
Sedimentary quartz arenite
sedimentary
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
sedimentary
Granite
Granite
igneous
Quartzite
Quartzite (mostly SiO2)
metamorphic
Chalcedony Geode Fragment
Microcrystalline Quartz (SiO2) within a nodule
sedimentary
Basalt Breccia
Volcanic Breccia (composed of basaltic clasts in a fine-grained matrix)
igneous
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Milky Quartz with Matrix
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 with various cementing minerals)
sedimentary
Sandstone Pebble
Sandstone (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2 with various cementing agents)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Sandstone (clastic sedimentary rock)
sedimentary
Serpentine (Healerite variety)
Serpentine group, Mg3Si2O5(OH)4
metamorphic
Red Sandstone
Arenite (Fe2O3 enriched)
sedimentary
Botryoidal Chalcedony (Geode fragment)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary