Last Updated:2025/12/04

A mineral used for polishing glass, marble, and metals, composed chiefly of silica, with a little alumina, lime, iron oxide, and water.

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polishing slate

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Source Word

polishing slate

Noun
countable uncountable
Japanese Meaning
ガラス、大理石、金属の研磨に使用される鉱物。主成分は珪石で、少量のアルミナ、石灰、酸化鉄および水分を含む。
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plural

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