Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Category
Sedimentary (Or Mineraloid)
Browse sedimentary (or mineraloid) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Or Mineraloid) in the encyclopedia
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Red Jasper (Quartz)
Silicon Dioxide (SiO2) with Iron impurities
sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Sandstone
Arenite
sedimentary
Limestone
Calcite-rich carbonate rock (primarily CaCO₃)
sedimentary
Chert (specifically Gray/Blue-Gray Chert)
Chert (SiO2)
sedimentary
Red Sandstone
Quartz Arenite (iron-stained)
sedimentary
Sandstone Pebble
Quartz Sandstone
sedimentary
Fossil shell fragment in sedimentary rock
Indeterminate marine mollusk shell; likely a bivalve or gastropod fossil
fossil
Quartz-veined Sandstone Pebble
Quartzite-veined Arenite
sedimentary
Devil's Toenail
Gryphaea (extinct genus of foam oysters, typically composed of Calcite CaCO3)
sedimentary
Sandstone (Common Quartz Pebble/Rock)
Sedimentary rock / Quartz arenite
sedimentary
Limestone Cobble
Sedimentary Limestone (CaCO3)
sedimentary
Coal
Carbonaceous sedimentary rock
sedimentary
Banded River Stone (Greywacke or Siltstone subtype)
Sedimentary Banded Siltstone
sedimentary
Conglomerate
Conglomerate (Sedimentary rock)
sedimentary
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Stream-Rounded Shale or Mudstone
Argillaceous sedimentary rock
sedimentary
Conglomerate
Clastic Sedimentary Conglomerate
sedimentary
Conglomerate
Clastic Sedimentary Rock
sedimentary
River Cobble (likely Siltstone or Sandstone)
Clastic Sedimentary Rock
sedimentary
Conglomerate
Conglomerative Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Red Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic sedimentary rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic sedimentary rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Argillite / Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone / Quartzite
Sedimentary quartz arenite
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Coal (Bituminous Coal)
Caustobiolith / Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Conglomerate
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Argillite / Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary