Home > Term: gem gravel
gem gravel
A gravel placer containing an appreciable concentration of gem minerals.
- Sõnaliik: noun
- Valdkond/domeen: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
0
Looja
- ed.young
-
(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
