Last Updated
：2025/11/28
chiastolite slate
Noun
Japanese Meaning
接触変成作用により炭素含有泥岩が変成してできた岩石。顕著な劈開や片岩的構造を持ち、微細な基盤中に目立つキアストライト結晶が含まれる。
（ plural ）
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(mineralogy) A rock formed by contact metamorphism of carbonaceous shale, characterized by prominent cleavage or schistosity and the presence of conspicuous chiastolite crystals in a fine-grained groundmass.
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chiastolite slate
During the field survey, the geologist collected a sample of chiastolite slate that showed prominent cross-shaped crystals in a fine-grained, schistose matrix.
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During the field survey, the geologist collected a sample of chiastolite slate that showed prominent cross-shaped crystals in a fine-grained, schistose matrix.
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