pitch opal
Mineralogy rare
noun
A yellow to brown variety of common opal with a pitchy lustre.
Origin
Mid 19th century; earliest use found in Henry William Bristow (1817–1889), geologist.
| 单词 | pitch opal |
| 释义 | pitch opalMineralogy rare noun A yellow to brown variety of common opal with a pitchy lustre. Origin |
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