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
Midnight Mine, Aspen Mining District (Roaring Fork Mining District), Pitkin 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 Midnight Mine, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:493220
Long-form Identifier:1:3:493220:8
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
16.6km (10.3 miles) ⓘSnowmass Creek Mine, Snowmass Creek Area, Pitkin County, Colorado, USA
66.7km (41.5 miles) ⓘBrown Derby No. 5 Mine, Brown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
67.8km (42.1 miles) ⓘBrown Derby No. 1, Brown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
67.8km (42.1 miles) ⓘBrown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA
71.6km (44.5 miles) ⓘCalifornia Mine, Upper Browns Creek area, Nathrop, Chaffee County, Colorado, USA
73.5km (45.7 miles) ⓘGunnison District Occurrence (W.C. Dillon; MS 10715), Gunnison Mining District, Gunnison County, Colorado, USA
77.1km (47.9 miles) ⓘGold Basin District Occurrence (MS 1984; Patented Claim: Belle Flora), Green Mountain Mining District (Gold Basin Mining District; Iris Mining District), Gunnison County, Colorado, USA
77.9km (48.4 miles) ⓘRuby Mountain, Nathrop, Chaffee County, Colorado, USA
78.0km (48.5 miles) ⓘLucky Strike Mine (Modoc; MS 17455; Horse Shoe; MS 17122; Belle Valaisane; MS 13897; Only Chance; MS 17455; Mammoth; MS 13897; Patented Claims: Lucky Strike; MS 9125), Green Mountain Mining District (Gold Basin Mining District; Iris Mining District), Gunnison County, Colorado, USA
79.5km (49.4 miles) ⓘGreen Mountain Mining District (Gold Basin Mining District; Iris Mining District), Gunnison County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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