|
USA | |
|
| Mason, Anita (1976) The World of Rocks and Minerals. Larousse & Co., Inc., New York. |
- Newberry National Volcanic Monument
| The ORE BIN Volume 31, No.4 April 1969 pp 73-87
Mineralogy of 10 Geothermal boreholes drilled in and around the Newberry Caldera U.S. Geological Survey Professional Paper, Issue 1578 By Keith E. Bargar, Terry E. C. Keith 1999 |
|
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
|
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
|
| Chi Ma, George R. Rossman, James A. Miller (2007) The origin of color in "fire" obsidian. The Canadian Mineralogist, 45(3), 551-557.
Mason, Anita (1976) The World of Rocks and Minerals. Larousse & Co., Inc., New York. |
|
| Luetcke, Rolf (n.d.) Personal communication. |
|
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Glass Buttes, Lake County, Oregon, USA