Home > Term: pyroretin
pyroretin
A brittle, brownish-black resin that occurs in brown coal near Aussig, Bohemia; sp gr, 1.05 to 1.18.
- Μέρος του λόγου: noun
- Κλάδος/Τομέας: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
0
Δημιουργός
- ed.young
-
(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
