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Leucosphenite, Narsarsukite, Manganoneptunite


Leucosphenite : BaNa4Ti2B2Si10O30, Narsarsukite : Na2(Ti,Fe)Si4(O,F)11, Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24]

Photo Copyright © Pavel M. Kartashov  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Yubileinaya (Yubileinoye; Jubilejnaja) pegmatite, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Spherulitic inclusions of blue leucosphenite in porcelaneous bluish-grey narsarsukite. Associated minerals are natrolite, manganneptunite, aegirine. FOV 4x4 cm. Collected before 1988. Pavel M. Kartashov collection and photo.

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