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feldspathoid

noun
feld·​spath·​oid | \ -ˌthȯid\
plural -s

Definition of feldspathoid

: a mineral consisting of an aluminous silicate (as leucite nepheline) that has too little silica to form feldspar

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Other Words from feldspathoid

feldspathoidal \ ¦⸗ˌ⸗¦thȯidᵊl \ adjective

History and Etymology for feldspathoid

International Scientific Vocabulary feldspath + -oid

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