vitrophyre

English

Pronunciation

• IPA^(key): /ˈvɪtɹəfaɪə(ɹ)/

Noun

vitrophyre (countable and uncountable, plural vitrophyres)

1. A porphyritic variety of volcanic glass.
   • 1986, Eric H. Christiansen, The Geology and Geochemistry of Cenozoic Topaz Rhyolites, page 5:

     The compositions of felsites and vitrophyres are similar but felsites have higher K/Na ratios than their corresponding vitrophyres.

Derived terms

• vitrophyric