Noun Variolite Definition and Examples


Noun:

Variolite

Pronunciation:

/ˈvɛːrɪəlʌɪt/

Definition:
1.

noun

A fine-grained igneous rock, often basaltic or andesitic, containing spherical or ovoid crystalline masses (typically pale and several millimetres in diameter) which give it a spotted or pockmarked appearance.
    ((n.) A kind of diorite or diabase containing imbedded whitish spherules, which give the rock a spotted appearance.)


    Origin:
    Late 18th century; earliest use found in The Monthly Review. From (i) Italian variolite.

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