Wiktionary

オパール

Japanese

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オパール

Etymology

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Borrowed from French opal.[1]

Noun

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オパール • (opāru) 

  1. (mineralogy) opal, a mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity

References

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  1. ^ Matsumura, Akira (1995) 大辞泉 [Daijisen] (in Japanese), First edition, Tokyo: Shogakukan, →ISBN
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