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RM2256   Shcherbakovite, Schizolite and Lamprophyllite

Rasvumchorr Mt, Khibiny, Murmansk Oblast, Russia

Aggregate of brown prismatic crystals of this rare niobium and tantalum silicate found in the alkaline pegmatites of the Khibiny Mountains, in this remote area of the Kola Peninsula. It is accompanied by pink aggregates of schizolite, an intermediate member of the pectolite-serandite series, and of lamprophyllite. Identified by Dr. D. Lisitsin.

Size: 5.6 x 3.8 x 2.8 cm.
Main crystal: 1.7 cm.

Price: 130 €Buy

RM2228   Lorenzenite

Selsurt Mountain, Lovozersky, Murmansk Oblast, Russia

Lorenzenite is a rare sodium titanium silicate found in pegmatites and nepheline syenites. A lustrous, sharp, chocolate-brown crystals in matrix on this excellent specimen from the Joan Astor Collection.

Size: 4.5 x 4 x 3 cm.
Main crystal: 1.8 cm.
Found in 1994.

Col. Joan Astor.