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Phlogopite from
Stakholmen quarry, Hassela, Nordanstig, Gävleborg County, Sweden


Locality type:Quarry
Classification
Species:Phlogopite
Formula:KMg3(AlSi3O10)(OH)2
Formation:Primary
Comments:Jonsson (1996) says "In most of the investigated specimens, prismatine is intimately intergrown in a medium- to coarse-grained white or colourless to light tan mass mainly composed of subhedral sheaves of white enstatite, white, sheafy talc and a light brownish phlogopitic mica. Dravite, quartz and plagioclase occur as slightly less common constituents of this assemblage."
Colour:light brown
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Prismatine8
Enstatite8
Talc4
Data
Mineral Data:Click here to view Phlogopite data
Locality Data:Click here to view Stakholmen quarry, Hassela, Nordanstig, Gävleborg County, Sweden
Data Identifiers
Mindat Occurrence Record ID:96607
Long-form Identifier:1:3:96607:0
GUID (UUID V4):0
Nearest other occurrences of Phlogopite
52.6km (32.7 miles) ⓘAlnö Complex, Sundsvall, Västernorrland County, Sweden
54.7km (34.0 miles) ⓘSmedsgården, Alnö Complex, Sundsvall, Västernorrland County, Sweden
70.4km (43.8 miles) ⓘÅvikebukten Group of Dikes, Tynderö, Timrå, Västernorrland County, Sweden
92.4km (57.4 miles) ⓘMansjöberg limestone quarries, Los, Ljusdal, Gävleborg County, Sweden
References
Jonsson, E. (1996) The first occurrence of a kornerupine‐group mineral in Sweden: Prismatine from Stakholmen, Hälsingland. GFF, 118. 52-53 doi:10.1080/11035899609546333
Grew, Edward S.; Pertsev, Nikolai N.; Vrána, Stanislav; Yates, Martin G.; Shearer, Charles K.; Wiedenbeck, Michael (1998) Kornerupine parageneses in whiteschists and other magnesian rocks: is kornerupine + talc a high-pressure assemblage equivalent to tourmaline + orthoamphibole? Contributions to Mineralogy and Petrology, 131 (1). 22-38 doi:10.1007/s004100050376
 
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