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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Tourmaline from
Quarry Prospect, Nome Mining District, Nome Census Area, Alaska, USA


Locality type:Prospect
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Quarry Prospect, Nome Mining District, Nome Census Area, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:1232275
Long-form Identifier:1:3:1232275:6
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
4.1km (2.5 miles) ⓘGalena Prospect, Nome Mining District, Nome Census Area, Alaska, USA
8.5km (5.3 miles) ⓘAurora Prospect, Nome Mining District, Nome Census Area, Alaska, USA
25.6km (15.9 miles) ⓘUnnamed Occurrence (ARDF - NM045; on hill 2321), Nome Mining District, Nome Census Area, Alaska, USA
26.4km (16.4 miles) ⓘUnnamed Occurrence (ARDF - NM046; near hill 1807), Nome Mining District, Nome Census Area, Alaska, USA
28.0km (17.4 miles) ⓘUnnamed Occurrence (ARDF - NM006; near upper Martha Creek), Nome Mining District, Nome Census Area, Alaska, USA
28.3km (17.6 miles) ⓘUnnamed Occurrence (ARDF - NM042; between North Star Creek and Windy Creeks), Nome Mining District, Nome Census Area, Alaska, USA
31.7km (19.7 miles) ⓘUnnamed Occurrence (ARDF - NM040; near Deep Canyon Creek), Nome Mining District, Nome Census Area, Alaska, USA
32.3km (20.1 miles) ⓘUnnamed Occurrence (ARDF - NM039; near Tigaraha Mountain), Nome Mining District, Nome Census Area, Alaska, USA
34.1km (21.2 miles) ⓘUnnamed Occurrence (ARDF - NM021; Cobblestone River), Nome Mining District, Nome Census Area, Alaska, USA
35.4km (22.0 miles) ⓘUnnamed Occurrence (ARDF - NM038; near Tumit Creek), Nome Mining District, Nome Census Area, Alaska, USA
References
Slack, J. F., Till, A. B., Belkin, H. E., & Shanks III, W. P. (2014). Late Devonian–Mississippian (?) Zn-Pb (-Ag-Au-Ba-F) deposits and related aluminous alteration zones in the Nome Complex, Seward Peninsula, Alaska. Geological Society of America Special Papers, 506, 173-212.
 
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