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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Bornite from
Repp Mine, Frederick County, Maryland, USA


Locality type:Mine
Classification
Species:Bornite
Formula:Cu5FeS4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bornite data
Locality Data:Click here to view Repp Mine, Frederick County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:859939
Long-form Identifier:1:3:859939:1
GUID (UUID V4):0
Nearest other occurrences of Bornite
4.4km (2.7 miles) ⓘLiberty Mine, Libertytown, Frederick County, Maryland, USA
4.8km (3.0 miles) ⓘDolyhyde Mine (Dolly Hyde Mine), Libertytown, Frederick County, Maryland, USA
5.1km (3.2 miles) ⓘUnionville Mine, Frederick County, Maryland, USA
5.9km (3.7 miles) ⓘHammond Prospect (Pittinger Prospect), Frederick County, Maryland, USA
6.5km (4.0 miles) ⓘCox Mines (Mountain View Mine), Frederick County, Maryland, USA
7.3km (4.5 miles) ⓘRobert D. Repp Prospect (Portland Cement Company), Carroll County, Maryland, USA
8.8km (5.5 miles) ⓘRoop Mine, New Windsor, Carroll County, Maryland, USA
9.5km (5.9 miles) ⓘHeidelberg New Windsor Limestone Quarry, New Windsor, Carroll County, Maryland, USA
11.7km (7.3 miles) ⓘNew London Mine (Linganore Mine), New London, Frederick County, Maryland, USA
25.7km (16.0 miles) ⓘMonroe prospect, Eldersburg, Carroll County, Maryland, USA
References
Heyl, A. & Pearre, N (1965) Copper, zinc, lead, iron cobalt and barite deposits of the Piedmont Upland in Maryland: Maryland Geological Survey: Bulletin 28, 72 p.
 
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