Home > Term: rock-butter
rock-butter
A soft mineral substance found oozing from alum slates, and consisting of alum, alumina, and oxide of iron.
- Del af tale: noun
- Branche/domæne: Language
- Category: Encyclopedias
- Organization: Project Gutenberg
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Ophavsmand
- JohannesDD
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(V.I.P) 14638 points - 100% positive feedback
(Sydney, Australia)
