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USA | |
- Blue Hill - Castine Mining District
| www.maine.gov/doc/nrimc/mgs/explore/minerals/sites/mar99.htm |
| Marvinney, Robert G (2010) Brief Review of the Geology of Monhegan Island, Maine, Maine Geologic Facts and Localities, https://digitalmaine.com/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=1446&context=mgs_publications. |
| Mason B., Jarosewich E. & Nelen J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. |
| www.mindat.org (2007) https://www.mindat.org/min-29299.html www.mindat.org (2007) https://www.mindat.org/min-39493.html www.mindat.org (2003) https://www.mindat.org/min-9767.html Found in 2023 by Lloyd W. Alexander during ongoing study. Confirmed by Al Falster. |
| Hillenbrand, I. (2018) Maine Geologic Facts and Localities - Ocean crust, fossils, and an unconformity: Bedrock Geology of Ripogenus Dam. |
| Morrill & Hinckley, 1959. Maine Mines & Minerals, Vol. 2 |