Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Tourmaline from
Sedalia Mine (Sedalia Copper Mine), Sedalia Mining District, Chaffee County, Colorado, USA


Locality type:Mine
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 Sedalia Mine (Sedalia Copper Mine), Sedalia Mining District, Chaffee County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:660259
Long-form Identifier:1:3:660259:8
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
3.9km (2.5 miles) ⓘAce High - Jackpot Prospect, Turret Mining District, Chaffee County, Colorado, USA
6.9km (4.3 miles) ⓘSilver Rocker group, Turret Mining District, Chaffee County, Colorado, USA
11.6km (7.2 miles) ⓘStockton Mine (Gertrude Vein), Cleora Mining District, Chaffee County, Colorado, USA
12.7km (7.9 miles) ⓘGypse Queen Mine, Cleora Mining District, Chaffee County, Colorado, USA
16.6km (10.3 miles) ⓘRuby Mountain, Nathrop, Chaffee County, Colorado, USA
21.7km (13.5 miles) ⓘCalifornia Mine, Upper Browns Creek area, Nathrop, Chaffee County, Colorado, USA
29.0km (18.0 miles) ⓘUnnamed Uranium - Feldspar Mine (MRDS - 10013132), Saguache County, Colorado, USA
38.1km (23.7 miles) ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
41.7km (25.9 miles) ⓘChief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
45.6km (28.3 miles) ⓘHighway 50 roadcut, Texas Creek Area, Fremont County, Colorado, USA
References
U.S. Geological Survey Professional Paper 829
 
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