Sandstone
Sandstone (SiO2 dominant)
sedimentary
Category
Mineraloid Like Synthetic Material
Browse mineraloid like synthetic material specimens identified by the Rock Identifier community.
Learn about Mineraloid Like Synthetic Material in the encyclopedia
View all →
Chert Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Limestone with fossiliferous textures
Bioclastic Limestone (CaCO3)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) in Host Rock
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Mixed Polished Gemstones (Tumbled Stones)
Mixed Silicates and Oxides (SiO2, KAlSi3O8, Ca2Al2Be3Si6O22, etc.)
mineral
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Red Sandstone
Arenite (primarily SiO2 with Fe2O3)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Coquina with Shell Fragment
Bioclastic Limestone (composed primarily of CaCO3)
sedimentary
Chert / Flint Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (Agate/Carnelian variety)
Cryptocrystalline Quartz (SiO2)
mineral
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Jasper and Basalt Pebble
Polymineralic lithic pebble
igneous and sedimentary
Granite
Granite (Felsic Intrusive Igneous Rock)
igneous
Red Sandstone
Arenite (SiO2 with Fe2O3)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (likely Ferruginous)
Sandstone (SiO2 with iron oxides)
sedimentary
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
mineral
Riverstone (Siltstone/Mudstone)
Siltstone
sedimentary
Red Sandstone
Ferruginous Sandstone
sedimentary
Sandstone (Quartz-rich)
Arenite (Quartz Arenite)
sedimentary
Red Sandstone
Arenic rock (composed mainly of SiO2 with Fe2O3)
sedimentary
Quartz with Iron Oxide
Silicon Dioxide (SiO2) with Fe2O3 inclusions
mineral
Granite
Granite
Igneous
Sandstone
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Granodiorite
Phaneritic intrusive igneous rock
igneous
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
sedimentary
Sandstone (with Arkose characteristics)
Clastic sedimentary rock (SiO2 with KAlSi3O8)
sedimentary
Crazy Lace Agate
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Quartzwacke / Impure Sandstone
Arenite with minor lithic fragments (Silicon Dioxide matrix)
sedimentary
Sandstone (Quartz-rich)
Arenite (primarily SiO2)
sedimentary
Granite (Alkali-feldspar Granite)
Felsic Plutonic Rock (Primary minerals: Quartz SiO2, Orthoclase KAlSi3O8, Plagioclase (Na,Ca)AlSi3O8)
igneous
Serpentinite
Serpentinite (composed mainly of Group: Serpentine; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral