Home > Term: rock-butter
rock-butter
A soft mineral substance found oozing from alum slates, and consisting of alum, alumina, and oxide of iron.
- Vārdšķira: noun
- Nozare/domēns: Language
- Category: Encyclopedias
- Organization: Project Gutenberg
0
Autors
- JohannesDD
-
(V.I.P) 14638 points - 100% positive feedback
(Sydney, Australia)
