Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Category
Browse manufactured stone specimens identified by the Rock Identifier community.
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone
Arenite (mostly Quartz-based)
Fluorite (specifically Blue John or Banded Fluorite)
Calcium Fluoride (CaF2)
Quartz / Chert
Silicon Dioxide (SiO2)
Feldspar Rich Granite with Limonite Staining
K-Feldspar Granite (KAlSi3O8)
Red Mudstone (Siltstone)
Lutite (primarily Quartz and Clay minerals with Hematite)
Sandstone (Quartzose Sandstone)
Arenite (SiO2 principal component)
Milky Quartz Cobble
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Sandstone
Arenite (primarily Quartz SiO2)
Red Sandstone
Arenite (with Iron Oxide / Hematite), Formula: SiO2 (Quartz) + Fe2O3 (Hematite coating)
Quartzite
Quartzite (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Vein Outcrop
Silicon Dioxide (SiO2)
Sandstone (with Iron Oxide)
Arenite with Limonite/Hematite staining
Basalt
Basalt (Mafic volcanic rock)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 principal composition)
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Sandstone (likely Graywacke or Arkose)
Clastic Sedimentary Rock (primarily SiO2 with various lithic fragments)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Optical Calcite (Iceland Spar)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (Siliclastic sedimentary rock)
Limestone
Calcium Carbonate (CaCO3)
Quartzite Cobble
Quartzite (SiO2)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
Limestone
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3/FeO(OH) cementing agents)
Sandstone
Arenite (composed primarily of Quartz: SiO2)
Oolitic Limestone
Oolite (Sedimentary Calcium Carbonate)
Clear Quartz (Rock Crystal Fragments)
Silicon Dioxide (SiO2)
Quartz Pebble (often referred to as 'Sea Glass' or 'River Stone' when worn smooth)
Silicon Dioxide (SiO2)