demantoid

de·man·toid

D0118900 (dĭ-măn′toid′)n. A transparent, green variety of garnet used as a gem.

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[German, from archaic Demant, diamond, from Middle High German diemant, from Old French diamant; see diamond.]

demantoid

(dɪˈmæntɔɪd) n (Minerals) a bright green variety of andradite garnet[C19: from German, from obsolete Demant diamond, from Old French diamant + -oid]

de•man•toid

(dɪˈmæn tɔɪd)

n. a brilliant green andradite garnet, used as a gem. [1890–95; < German, = (obsolete) Demant diamond + -oid -oid]

Thesaurus

Noun

1.

demantoid - a green andradite used as a gemstoneandradite - a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone