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While externally similar shapes, these two minerals are very different inside.
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Biotite granite from
Krudum granite body, Třídomí, Horní Slavkov, Sokolov District, Karlovy Vary Region, Czech Republic


Locality type:Outcrop
Classification
Type:Biotite granite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite granite data
Locality Data:Click here to view Krudum granite body, Třídomí, Horní Slavkov, Sokolov District, Karlovy Vary Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:1515894
Long-form Identifier:1:3:1515894:9
GUID (UUID V4):0
Nearest other occurrences of Biotite granite
43.7km (27.2 miles) ⓘLhota Uranium Deposit, Tachov District, Plzeň Region, Czech Republic
97.7km (60.7 miles) ⓘBorehole CS-1, Cínovec, Dubí, Teplice District, Ústí nad Labem Region, Czech Republic
99.2km (61.6 miles) ⓘPreiselberg area, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
References
René, Miloš (2018) REE and Y Mineralogy of the Krudum Granite Body (Saxothuringian Zone) Minerals, 8 (7) 287 doi:10.3390/min8070287
 
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