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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Dumortierite from
Sandträsket, Boden, Norrbotten County, Sweden


06430590017364323608205.jpg
Dumortierite

Sandträsket, Boden, Norrbotten County, Sweden
06430590017364323608205.jpg
Dumortierite

Sandträsket, Boden, Norrbotten County, Sweden
04131920017272038196057.jpg
Dumortierite

Sandträsket, Boden, Norrbotten County, Sweden
Locality type:Lake
Classification
Species:Dumortierite
Formula:Al(Al2O)(Al2O)2(SiO4)3(BO3)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dumortierite data
Locality Data:Click here to view Sandträsket, Boden, Norrbotten County, Sweden
Data Identifiers
Mindat Occurrence Record ID:891027
Long-form Identifier:1:3:891027:1
GUID (UUID V4):0
References
Bjällerud, Carl-Gustav (1990) Mer om Lapplandmineral [More about Lapland minerals]. Stuffen Medlemsblad för Södertörns Amatørgeologiska Sällskap [The specimen. Member magazine for Södertörns amateurgeological society], 11 (40). 14
 
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