Takhtarvumchorr Mt, Murmansk Oblast, Russia

Rounded troilite crystal in tinguaite. Field of view 8 mm. Collection M. Kampf No 97-032.

Aegirine, K-Na-feldspar and Nepheline form aggregate - Tinguaite. This morphological variety of Tinguaite is named "Turtle Tinguaite". Not too abundant variety. Polished surface 6x5 cm. Selfcollected on Takhtarvumchorr plateau over Molybdenum mine in July of 1992. Pavel M. Kartashov collection and scan.

© Pavel M. Kartashov collection & photo

Prismatic and hexagonal in section crystals of brown Rinkite in nepheline-syenite pegmatite matrix. Associating minerals are white Orthoclase, grey Nepheline, black Aegirine-I and minor pink Eudialyte. Yellow ochres of "Vudjavrite" pseudomorph after Rinkite also are visible at the left side. Specimen size is 7x3.5x2.5 cm. Selfcollected in ...

© Pavel M. Kartashov collection & photo

According to Maurice Strahlen's information found on his website, the material presented here is rather parakeldyshite (resembling feldspar), than it's alteration product, keldyshite (as the specimen was labelled), that in lesser amounts might be present too. Field of view is 2.1 cm.

© Lukasz Kruszewski 2007

Cinnamon Mosandrite with pink Eudialite and green-black Aegyrine Sample size: 7 X 3,5 Collectionand photo: Arliguie M

© Arliguie M

dimension area mm. 2 x 2 photo and collection Luigi Chiappino

Whitish mass with minor eudialyte FOV 3 x 2 mm Collection and photo Roberto Bosi

© Roberto Bosi

Rich, pale orange-brown, radial, fibrous chirvinskyite in aegirine-microcline matrix. Full view of specimen in child image. Analysed by M Murashko. Purchased from Carsten Slotta/MinTreasure in 2019. Stack of 78 images.

© Andrew Hodgson

Yellow chirvinskyite with aegirine from the type locality. Specimen and photo from Mintreasure.

© Knut Eldjarn

Typical spray of orange-brown låvenite in albitic matrix.

© Łukasz Kruszewski 2017

This specimen was collected by E.E. Kostyleva in 1929. I obtained this specimen from Pavel Kartashov in exchange. The large black aenigmatite crystal is surrounded by brown eudialyte (mesodyalite) and green aegirine. There is some astrophyllite on the back of the specimen (not visible).

© Jeffrey de Fourestier

White Keldyshite. Photo with Canon Eos 600 D + Bellows + Rodenstock Rodagon 35 mm 1:4,0 reversed. Photo and collection Giovanni Scapin.

© 2024 Giovanni Scapin

A panoramic view of Mt. Takhtarvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia (N 67°40′, E 33°33′), showing Lake Maly Vudjavr and a star for the type locality of chirvinskyite. Image appears as Figure 1b in: Yakovenchuk, V.N.; Pakhomovsky, Y.A.; Panikorovskii, T.L.; Zolotarev, A.A.; Mikhailova, J.A.; Bocharov, V.N.; ...

© Yakovenchuk et al 2019