Home > Term: black opal
black opal
Precious opal with play of color (commonly red or green) displayed against a dark gray (rarely black) body color; e.g., the fine Australian blue opal with flame-colored flashes.
- Kalbos dalis: noun
- Pramonės šaka / sritis: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
