The Government of Canada’s terminology and linguistic data bank.
Opal without play of color. 3, record 1, English, - common%20opal
Potch; Potch opal: An Australian term for an opal of inferior quality that does not exhibit play of color; it is found in association with precious opal. 4, record 1, English, - common%20opal
Semi-opal; Semiopal: Term loosely used for several varieties of opal. 5, record 1, English, - common%20opal
Opale inutilisable comme gemme mais qui sert souvent à doubler des opales irisées trop minces. 2, record 1, French, - opale%20commune
Elle porte beaucoup de noms dans le commerce [suivant sa variété : couleur, transparence, etc.] 3, record 1, French, - opale%20commune
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