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Fiorite vs Diorite - What's the difference?

fiorite | diorite |

As nouns the difference between fiorite and diorite

is that fiorite is (mineral) a variety of opal occurring in the cavities of volcanic tufa, in smooth and shining globular and botryoidal masses while diorite is (rock) a grey intrusive igneous rock composed mostly of plagioclase feldspar, biotite, hornblende and/or pyroxene.

fiorite

English

Noun

(-)
  • (mineral) A variety of opal occurring in the cavities of volcanic tufa, in smooth and shining globular and botryoidal masses.
    • (Webster 1913) ----

    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