MOONSTONE

moonstone

(noun) a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar

Source: WordNet® 3.1

Etymology

Noun

moonstone (plural moonstones)

(mineral) A translucent gemstone, an orthoclase feldspar, that has a pearly lustre.

Anagrams

• monotones

Source: Wiktionary

Moon"stone`, n. (Min.)

Definition: A nearly pellucid variety of feldspar, showing pearly or opaline reflections from within. It is used as a gem. The best specimens come from Ceylon.

Source: Webster’s Unabridged Dictionary 1913 Edition