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Arkose
Banded sandstone
Shale
Breccia
Sandstone
Conglomerate
Siltstone
Encrinal limestone
Shelly limestone
Travertine
Chert
Rock salt
Chalk
Lignite coal
Bituminous coal
Arkose
Sand
Moderate
Angular
Alluvial fan
Banded sandstone
Sand
Well
Rounded
River channels, flood plains, river deltas, desert dunes, lakes, beaches, shallow marines
Shale
Clay
Well
Rounded
River channels, flood plains, river deltas, lakes, beaches, lagoons, shallow marines, deep marines
Breccia
Pebble
Poor
Angular
Alluvial fan
Sandstone
Sand
Well
Rounded
Sandstone
River channel, flood plains, river deltas, desert dunes, lakes, beaches, shallow marines
Conglomerate
Pebble
Poor
Angular
Beaches, River channels
Siltstone
Silt
Well
Rounded
River channels, flood plains, river deltas, lakes, beaches, shallow marines
Encrinal limestone
Crinoids (marine fossils)
Organic
Lagoons, shallow marines, deep marines, reefs
Shelly limestone
Shells
Organic
Lagoon, shallow marines, deep marines
Travertine
Microcrystalline calcite
Inorganic
Hot springs
Chert
Microcrystalline quartz
Inorganic
Deep marine
Rock salt
Halite
Inorganic
Playa
Chalk
Coccoliths
Organic
Deep marines
Bituminous coal
Plants
Organic
Swamps
