홈 > Term: rock-butter
rock-butter
A soft mineral substance found oozing from alum slates, and consisting of alum, alumina, and oxide of iron.
- 품사: noun
- 분야/도메인: 언어
- 카테고리: Encyclopedias
- Organization: Project Gutenberg
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작성자
- JohannesDD
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(V.I.P) 14638 포인트 - 100% positive feedback
(Sydney, Australia)
