CHEMICAL SEDIMENTARY ROCKS
| LIMESTONES | OTHERS | |
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| FOSSILIFEROUS | COAL | ALABASTER |
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| CRYSTALLINE | DIATOMITE | ROCK SALT |
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| TRAVERTINE | GYPSUM/ANHYDRITE | NOVACULITE |
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| SELENITE | COMMON OPAL | |
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| COQUINA | SATIN SPAR | ROCK DOLOMITE |