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
Turii alkaline massif (Turiy massif), Turii Cape, Murmansk Oblast, Russia


Locality type:Massif
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
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Turii alkaline massif (Turiy massif), Turii Cape, Murmansk Oblast, Russia
Data Identifiers
Mindat Occurrence Record ID:845711
Long-form Identifier:1:3:845711:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
55.1km (34.2 miles) ⓘKrivoe ozero (Kartesh), Chupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
69.3km (43.0 miles) ⓘKhetolambina pegmatite, Chupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
72.1km (44.8 miles) ⓘKolvitsa Fe-Ti-V deposit, Tersky District, Murmansk Oblast, Russia
74.4km (46.2 miles) ⓘMalinovaya Varaka pegmatite, Chupa Bay, Chupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
77.2km (48.0 miles) ⓘLopatova Guba mica pit, Loukhsky District, Republic of Karelia, Russia
79.1km (49.2 miles) ⓘSalmagorsky complex, Kola Peninsula, Murmansk Oblast, Russia
79.8km (49.6 miles) ⓘKhit Ostrov (Khit Island), Loukhsky District, Republic of Karelia, Russia
81.9km (50.9 miles) ⓘDlinnaya lambina lake, Ambarniy village, Loukhsky District, Republic of Karelia, Russia
82.1km (51.0 miles) ⓘVaratskoe occurrence, Loukhsky District, Republic of Karelia, Russia
82.3km (51.1 miles) ⓘChupa pegmatite field, Loukhsky District, Republic of Karelia, Russia
References
a review. Can Mineral, v. 34, p. 265-280
Keith Bell, Elizabeth Ann Dunworth, Andrei G. Bulakh, and Valeriy V. Ivanikov (1996) Alkaline rocks of the Turiy Peninsula, Russia, including type-locality turjaite and turjite
 
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