Scheelite

Scheelites from this locality are relatively uncommon, usually making it to market from an old collection (this one Ex Chester Lemansky).  The location is very remote and arctic. They were found in the early 1990s and rarely exceeded 5cm. This one is 5.8cm and exhibits a much deeper color than most I have seen via images on the internet. It is complete, with a a druise of clear crystals (topaz?)  infilling on the back. Under SW it responds cool bluish white. For fun I checked LW and got a ghostly green reaction on one surface (see photo).

Locality: Tenkergin Mine, Iultinsky Dist., Chukota, Russia

Composition: calcium tungstate