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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Adularia from
Cold Spring Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:K Feldspar var: Adularia
Formula:KAlSi3O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Adularia data
Locality Data:Click here to view Cold Spring Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:662438
Long-form Identifier:1:3:662438:5
GUID (UUID V4):0
Nearest other occurrences of Adularia
4.8km (3.0 miles) ⓘBlack Hawk No. 2 vein, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
9.5km (5.9 miles) ⓘEnterprise Vein Occurrence, Eldora, Caribou Mining District, Boulder County, Colorado, USA
13.4km (8.3 miles) ⓘRooks County occurrence, Apex Mining District (Kingston Mining District; Pine Mining District), Gilpin County, Colorado, USA
23.1km (14.4 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
29.7km (18.4 miles) ⓘInvincible (Baltimore; Brighton; Silver Link; Blackwood; Alpine; Roca; Brownell; Frelland; Lance; Mint; Mammoth; Belle Creole; Ariadne; Diamond Mt.; Miller; Cecil; Falcon; Harrisburg; C. M. Welch), Lamartine Mining District, Clear Creek County, Colorado, USA
30.0km (18.6 miles) ⓘLadwig Group (Ladwig No. 2; Ladwig No. 3; Claims: Ladwig No. 1), Ralston Buttes Mining District, Jefferson County, Colorado, USA
30.1km (18.7 miles) ⓘUnion Pacific Shaft Occurrence (Union Pacific Prospect), Ralston Buttes Mining District, Jefferson County, Colorado, USA
37.1km (23.1 miles) ⓘGeorgetown-Silver Plume Mining District (Griffith Mining District; Silver Plume Mining District), Clear Creek County, Colorado, USA
References
Lovering, T.S., Goddard, E.N. (1950) Geology and ore deposits of the Front Range, Colorado. Professional Paper 223. US Geological Survey doi:10.3133/pp223
 
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