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Sedimentary Rock Review. Test You Knowledge. Conglomerate - Clastic -rounded gravel sized particles -pieces have been lithified. Breccia - Clastic -angular pieces lithified together. Banded Sandstone – Clastic -sand sized pieces lithified together. Arkose – clastic

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Sedimentary rock review

Sedimentary Rock Review

Test You Knowledge


Conglomerate - Clastic

-rounded gravel sized particles

-pieces have been lithified


Breccia - Clastic

-angular pieces lithified together


Banded Sandstone – Clastic

-sand sized pieces lithified together


Arkose – clastic

-high content of feldspar

-pieces of many different rock lithified together


Quartz Sandstone – Clastic

-will not effervesce with HCL

-light in color (Quartz composition)


Shale – Clastic

-has undergone compaction

-was once mud

-may contain oil or natural gas


Clay – Clastic

-microscopic particle size

-non porous

-super fine particles have been lithified


Crystalline Limestone – Chemical Biological

-will react with HCl (contains CaCo3)

-forms inshallow, calm, warm marine waters


Travertine – Chemical Biological

-will react with HCl

-is a form of limestone deposited by mineral springs, especially hot springs


Coquina – Chemical/Biological

-will react with HCl

-Coquina forms near the shore when shells, mineral calcite, and sometimes phosphate settle on the bottom of the ocean


Chalk – Biological/Chemical

-reacts with HCl

-It forms in deep marine conditions in oceans


Tufa – Chemical/Biological

-reacts with HCl

-type of limestone which forms in close proximity to bodies of water with a high content of dissolved minerals


Bituminous Coal – Chemical

-Coal forms from the accumulation of plant debris, usually in a swamp environment


Fossiliferous limestone – Chemical/Biological

-will react with HCl

-formed in a marine environment


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