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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Yttrofluorite from
Seerie pegmatite (Cooper pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA


Locality type:Pegmatite
Classification
Species:Fluorite var: Yttrofluorite
Formula:(Ca1-xYx)F2+x where 0.05 < x < 0.3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Yttrofluorite data
Locality Data:Click here to view Seerie pegmatite (Cooper pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:492945
Long-form Identifier:1:3:492945:1
GUID (UUID V4):0
Nearest other occurrences of Yttrofluorite
3.2km (2.0 miles) ⓘLittle Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
8.0km (5.0 miles) ⓘWhite Cloud pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
27.7km (17.2 miles) ⓘSkeleton No. 2 pegmatite, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA
40.4km (25.1 miles) ⓘSnowflake Feldspar Mine, Teller County, Colorado, USA
48.7km (30.2 miles) ⓘStrang pegmatite occurrence (S. B. Strang Ralston Creek pegmatite), Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
77.9km (48.4 miles) ⓘStove Mountain (Cookstove Mountain), El Paso County, Colorado, USA
80.9km (50.3 miles) ⓘ"Cerite" occurrences ("Rusty Gold" locality), Jamestown, Jamestown Mining District, Boulder 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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