Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse manufactured stone specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Quartzite River Rock
Quartzite (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Limestone (specifically Tufa or Travertine)
Calcium Carbonate (CaCO3)
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Sandstone
Arenite (Siliclastic sedimentary rock)
Fossilized Shell in Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Weathered pegmatite or feldspar-rich granite fragment
Granitic pegmatite, composed mainly of potassium feldspar and quartz, with minor mica; exact identification is uncertain from the photograph
Flint
Silicon dioxide (SiO2)
Iron-stained Quartzite
Recrystallized Quartz (SiO2) with Hematite/Limonite staining
Likely obsidian (black volcanic glass)
Obsidian; predominantly rhyolitic volcanic glass, mainly SiO₂
Quartz (worked as a tool or artifact)
Silicon Dioxide (SiO2)
US Penny
Cuprum (Copper: Cu) and Zincum (Zinc: Zn) Alloy
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
Goldstone (blue/black aventurine glass)
Man-made aventurine glass; silica glass containing metallic copper or other glittering inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartz (Quartzite Pebble)
Silicon Dioxide (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Blue Goldstone
Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)
Quartzite Cobble
Quartzite (SiO2)
Gold nugget or gold-bearing fragment
Native gold (Au), possibly gold-colored metal or coated material
Nutting Stone / Cupstone (Sandstone or Quartzite)
Sedimentary rock with anthropogenic modification (cupule)
Quartzite
Quartzite (primarily SiO2)
Quartzite Pebble
Quartzite (mostly SiO2)
Sandstone
Sedimentary Rock (Quartzose Sandstone)
Sandstone
Clastic Sedimentary Rock
Sandstone
Sandstone (SiO2 dominant)
Quartzite (with Mica / Quartzite Schist)
SiO2 (Silica) with minor Muscovite Mica KAl2(AlSi3O10)(OH)2
Sandstone
Sedimentary Rock (Quartz Arenite)
Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)