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Chalcophanite from
Long and Derry Mine, Iowa Gulch, Long and Derry Hill, Leadville District, Lake Co., Colorado, USA

Locality type:Mine
Classification
Species:Chalcophanite
Formula:(Zn,Fe,Mn)Mn3O7 · 3H2O
Confirmation
Validity:Believed Valid
References
References:Minerals of Colorado (1997) Eckel, E. B.
Data
Mineral Data:Click here to view Chalcophanite data
Locality Data:Click here to view Long and Derry Mine, Iowa Gulch, Long and Derry Hill, Leadville District, Lake Co., Colorado, USA
Nearest other occurrences of Chalcophanite
2.0km (1.2 miles) A Leadville, Leadville District, Lake Co., Colorado, USA
10.4km (6.5 miles) B Weston Pass District, Leadville District, Lake Co., Colorado, USA
79.3km (49.3 miles) C American Sisters Mine, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
137.7km (85.5 miles) D Ruby Cliff Quarry, Silver Cliff District, Custer Co., Colorado, USA
138.3km (86.0 miles) E Silver Cliff Quarry, Silver Cliff District, Custer Co., Colorado, USA
138.3km (86.0 miles) F Racine Boy Mine, Silver Cliff District, Custer Co., Colorado, USA
Mineral and/or Locality  
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