Definition of amphibole in English:
Any of a class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals: acid rocks consist mostly of quartz and feldspars, with a little mica or amphibole
More example sentences
- During obduction, mantle-derived magmas most likely evolved to granitic compositions by assimilation of sediments and by fractional crystallization of amphibole, feldspar, titanite and allanite.
- Associated with the fayalite are quartz, amphibole, and magnetite.
- They contain sulfide minerals as well as metamorphic minerals that include cordierite, gahnite, epidote, garnet, amphiboles, schorl, and many others.
Definition of amphibole in:
- US English dictionary
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