feldspathoid

English

Alternative forms

foid

Etymology

From German Feldspath (“feldspar”) +‎ -oid.

Noun

feldspathoid (countable and uncountable, plural feldspathoids)

(mineralogy) Any of a small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group.

Hyponyms

analcime, cancrinite, hauynite, kalsilite, lazurite, leucite, nepheline, nosean, sodalite

Derived terms

feldspathoidal

Adjective

feldspathoid (not comparable)

(mineralogy) Resembling a feldspar.

See also

feldspathic

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