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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Sillimanite from
Central Florida Phosphate Mining District (Bone Valley), Polk County, Florida, USA


Locality type:Mining District
Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view Central Florida Phosphate Mining District (Bone Valley), Polk County, Florida, USA
Data Identifiers
Mindat Occurrence Record ID:816734
Long-form Identifier:1:3:816734:7
GUID (UUID V4):0
References
Marc V. Hurst (2012) Central Florida Phosphate District. Southeastern Geological Society Field Trip Guidebook No. 57
 
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