feldspathoid
Meanings
noun
- 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.
adj
- Resembling a feldspar.
Word forms
Etymology
From German Feldspath (“feldspar”) + -oid.
Related words
Derived words
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