Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Tourmaline from
Steamboat Islet Prospect, Rainy Lake, Saint Louis County, Minnesota, 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 Steamboat Islet Prospect, Rainy Lake, Saint Louis County, Minnesota, USA
Data Identifiers
Mindat Occurrence Record ID:503927
Long-form Identifier:1:3:503927:2
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
0.2km (0.1 miles) ⓘCranberry Islet Prospect, Rainy Lake, Saint Louis County, Minnesota, USA
5.3km (3.3 miles) ⓘBushyhead Island Prospect, Rainy Lake, Koochiching County, Minnesota, USA
5.4km (3.4 miles) ⓘLyle Mine, Rainy Lake, Koochiching County, Minnesota, USA
9.1km (5.6 miles) ⓘLittle American Mine, Rainy Lake, Koochiching County, Minnesota, USA
12.5km (7.7 miles) ⓘGrassy Island Prospect, Rainy Lake, Koochiching County, Minnesota, USA
91.8km (57.1 miles) ⓘGold Island Prospect, Saint Louis County, Minnesota, USA
95.8km (59.5 miles) ⓘJubilee Mine (Elora Mine), Boyer Lake Area, Kenora District, Ontario, Canada
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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