最終更新日：2024/08/04

(mineralogy) The surface, usually made from unglazed porcelain, across which a mineral is dragged to determine its streak.

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streak plate

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元となった辞書の項目

streak plate

noun

(mineralogy) The surface, usually made from unglazed porcelain, across which a mineral is dragged to determine its streak.

I used a streak plate to test the hardness of the mineral.

意味（1）

(mineralogy) The surface, usually made from unglazed porcelain, across which a mineral is dragged to determine its streak.