Big Bertha Mine (Big Bertha pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
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|Latitude & Longitude (WGS84):||39° 20' 13'' North , 105° 13' 3'' West|
|Latitude & Longitude (decimal):||39.3369444444, -105.2175|
Ref.: Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Series 11; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).
A pegmatite mine located in the SW¼ Sec 22, T.8S., R.70W.
Mineralization is an unzoned, lobate pegmatite body in granite.
Workings include a large open cut.
5 valid minerals.
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