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Protolith vs Psammite - What's the difference?

protolith | psammite |

As nouns the difference between protolith and psammite

is that protolith is the original precursor of any specified metamorphic rock while psammite is any sandstone, but most often a metamorphosed rock unit with a dominantly sandstone protolith.

protolith

English

Noun

(wikipedia protolith) (en noun)
  • (geology) The original precursor of any specified metamorphic rock

    • Derived terms

    *protolithic

    psammite

    English

    Noun

    (wikipedia psammite)
  • (mineralogy) Any sandstone, but most often a metamorphosed rock unit with a dominantly sandstone protolith.