opaline

英['əupəlain]美['əupəlain]

a. 蛋白石的;乳白光的

同：	[a.] iridescent, nacreous, opalescent, pearlescent

A white or grayish opaline siliceous deposit formed around natural hot springs.
硅华一种形成于天然温泉周围的白色或浅灰发乳色光的硅沉淀物收藏
A siliceous rock of chalcedonic or opaline silica occurring in limestone.
硅石出现在灰岩中的玉髓或蛋白色硅石收藏

having a play of lustrous rainbow-like colors
- an iridescent oil slick
- nacreous (or pearlescent) clouds looking like mother-of-pearl
- a milky opalescent (or opaline) luster
[同] iridescent, nacreous, opalescent, opaline, pearlescent

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