Sandstone
Sandstone (lithified sand)
sedimentary
Category
Anthropogenic (Man Made)
Browse anthropogenic (man made) specimens identified by the Rock Identifier community.
Learn about Anthropogenic (Man Made) in the encyclopedia
View all →
Serpentine
Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)
metamorphic
Hypersthene (or Enstatite/Ferrosilite)
Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)
Mineral
Sandstone
Arenite (general term for sandstone)
Sedimentary Rock
Quartz
SiO₂ (Silicon Dioxide)
Mineral
Quartz (likely Milky Quartz or Chalcedony)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Sandstone
Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)
Sedimentary Rock
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Sedimentary
Quartz
Quartz (SiO₂)
Mineral
Talc
Talc (Mg₃Si₄O₁₀(OH)₂)
Mineral
Quartzite
Quartzite (primarily SiO2)
Metamorphic
Micaceous Rock (likely Muscovite Schist/Gneiss or a Muscovite-rich Specimen)
Predominantly Muscovite (KAl2(AlSi3O10)(F,OH)2), often found in rocks like Muscovite Schist or Muscovite Gneiss.
Metamorphic, Mineral (within a rock type)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Chert (Flint)
Chert (predominantly SiO₂ - silicon dioxide)
sedimentary
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Mineral