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Diorite vs Variolite - What's the difference?

diorite | variolite |

As nouns the difference between diorite and variolite

is that diorite is (rock) a grey intrusive igneous rock composed mostly of plagioclase feldspar, biotite, hornblende and/or pyroxene while variolite is (geology) a kind of diorite or diabase with embedded whitish spherules, which give the rock a spotted appearance.

diorite

English

(wikipedia diorite)

Noun

(en noun)
  • (rock) A grey intrusive igneous rock composed mostly of plagioclase feldspar, biotite, hornblende and/or pyroxene.

    • Derived terms

    * dioritic * granodiorite * microdiorite

    variolite

    English

    Noun

  • (geology) A kind of diorite or diabase with embedded whitish spherules, which give the rock a spotted appearance.
    • (Webster 1913)