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Bonus Extension Mine, Cleora District, Chaffee Co., Colorado, USA
Mineralization is a 9 en-echelon exposure of unzoned pegmatite bodies.
Workings include a large open cut.
Mineral List
| Albite Almandine Andalusite | Beryl Biotite 'Columbite-Tantalite' | Gahnite Hematite var: Martite Magnetite | Microcline Muscovite Quartz |
12 entries listed. 9 valid minerals.
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References
Van Alstine, R. (1974), Geology and Mineral deposits of the Poncha Springs SE Quadrangle, Chaffee County, Colorado. USGS Professional Paper 829.
Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 23 (Table A-1).
Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 23 (Table A-1).
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New Locality Added: Magura-Hondol, Hunedoara Co., RomaniaFrom David Von Bargen, 25th May 2013 18:42:02