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Webster 1913 Edition
Diorite
Di′o-rite
,Noun.
[Cf. F.
diorite
. See Diorism
.] (Min.)
An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone.
Definition 2024
diorite
diorite
English
Noun
diorite (plural diorites)
- (petrology) A grey intrusive igneous rock composed mostly of plagioclase feldspar, biotite, hornblende and/or pyroxene.
Derived terms
- dioritic
- granodiorite
- microdiorite
Translations
Igneous rock