Sandstone (Pebble)
Sandstone (SiO2 dominated clastic sedimentary rock)
Category
Browse sedimentary or igneous fragment specimens identified by the Rock Identifier community.
Sandstone (Pebble)
Sandstone (SiO2 dominated clastic sedimentary rock)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
Red Sandstone
Clastic Sedimentary Rock
Sandstone Pebble
Arenite (Sandstone)
Sandstone
Arenite (SiO2 primarily)
Clear Quartz
Silicon Dioxide (SiO2)
Mica
Mica group (often Muscovite or Biotite)
Clear Quartz
SiO2 (Silicon Dioxide)
Sandstone
Arenite (SiO2 based)
Sandstone
Sandstone (SiO2-rich detrital sedimentary rock)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (Quartz-rich)
Arenite
Sandstone
Clastic sedimentary rock (primarily SiO2)
Lunar Meteorite (Feldspathic Breccia)
Achondrite, Lunar Meteorite (Feldspathic Breccia)
Sandstone
Arenite (Siliclastic sedimentary rock)
Biotite-bearing granite or gneiss
Felsic granitoid; chiefly quartz, feldspar, and biotite mica
Decomposed Granite
Grano-diorite/Granite-residuum (SiO2 primary)
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
Sandstone
Arenite (SiO2 primarily)
Gemstone Sand (Mineral Assortment)
Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)
Sandstone
Arenite (SiO2 principal component)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Ferruginous Sandstone
Arenite with Iron-Oxide Cement
Mixed rock and mineral gravel
Predominantly granite/granodiorite, basaltic rocks, quartz, and possible gneiss; exact identification is uncertain from the image
Peridotite Xenolith (Olivine)
Peridotite (predominantly Forsterite, (Mg,Fe)2SiO4)
Polished brecciated jasper
Jasper, opaque microcrystalline quartz (SiO₂), with iron-oxide and other mineral inclusions
Riverstone (likely Gray Slate or Siltstone)
Metamorphosed fine-grained sedimentary rock (Argillite/Slate)
Milky Quartz
Silicon Dioxide (SiO2)
Polished brecciated jasper
Jasper, opaque microcrystalline quartz (SiO₂), likely brecciated jasper with iron-oxide and dark silicate inclusions
Mixed tumbled stone collection
Assorted minerals, likely including quartz, jasper, agate, and possibly obsidian or hematite
Quartz (Float/Abraded)
Quartz (SiO₂)
Basalt (Glassy)
Basalt (Aphanitic-Glassy texture)
Obsidian
Volcanic Glass (SiO2 + impurities)
Kimberlite with Diamonds
Kimberlite (ultramafic potassic igneous rock)
Granite
Granite (Felsic Plutonic Rock)
Granite Pebble
Granite (Felsic Plutonic Rock)