foyalite

F4O1Y4A1L1I1T1E1

noun

A fine-grained Plutonic syenite made up of orthoclase, nepheline, hornblende, and accessory mica, sodalite, zircon, noselite, and pyroxene.

Scrabble 14
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Meanings

nounfoyalite (countable and uncountable, plural foyalites)

plural foyalites

  1. countableuncountablechemistryA fine-grained Plutonic syenite made up of orthoclase, nepheline, hornblende, and accessory mica, sodalite, zircon, noselite, and pyroxene.

    […] while foyalite is an almost pure iron-chrysolite.

    1864, The American Journal of Science and Arts, page 70
    2 more examples

    The free energy remains negative throughout the whole temperature range, indicating that the association forstorite + ilmenite is thermodynamically more stable than foyalite + geikielite.

    1948, Frank K. McIntosh, McHenry Mosier, Investigation of Wood Chromite Mine Area Lancaster County, PA, page 7

    Thin section photograph of foyalite (peralkaline phonolite) from Sevrano ki Dhani.

    2009, K. L. Shrivastava, Economic Mineralization, page 197
Cite this entry
APA

foyalite. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/foyalite

MLA

“foyalite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/foyalite. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “foyalite,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/foyalite.

Source: foyalite on Wiktionary, CC BY-SA 4.0.