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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Biotite from
Dlinnaya lambina lake, Ambarniy village, Loukhsky District, Republic of Karelia, Russia


Locality type:Lake
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Belomorite1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Dlinnaya lambina lake, Ambarniy village, Loukhsky District, Republic of Karelia, Russia
Data Identifiers
Mindat Occurrence Record ID:826435
Long-form Identifier:1:3:826435:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
48.3km (30.0 miles) ⓘKrivoe ozero (Kartesh), Chupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
50.5km (31.4 miles) ⓘVaratskoe occurrence, Loukhsky District, Republic of Karelia, Russia
54.4km (33.8 miles) ⓘMalinovaya Varaka pegmatite, Chupa Bay, Chupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
56.6km (35.2 miles) ⓘChupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
57.7km (35.9 miles) ⓘKhetolambina pegmatite, Chupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
62.9km (39.1 miles) ⓘKhit Ostrov (Khit Island), Loukhsky District, Republic of Karelia, Russia
63.7km (39.6 miles) ⓘLopatova Guba mica pit, Loukhsky District, Republic of Karelia, Russia
65.3km (40.6 miles) ⓘKhizovara kyanite deposit, Khizovaar ore field, Loukhsky District, Republic of Karelia, Russia
81.9km (50.9 miles) ⓘTurii alkaline massif (Turiy massif), Turii Cape, Murmansk Oblast, Russia
88.8km (55.2 miles) ⓘElet'ozerskii massif, Loukhsky District, Republic of Karelia, Russia
References
Yu.A.Kozhevnikov (2010) Samotsvetnye tropy,Moscow,Mir Samotcvetov, 56p (in Rus.)
 
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