Umbite (chemical formula ) is a potassium zirconosilicate

mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. ( ...

found in northern

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

. Named after Lake Umb (

Lake Umbozero Umbozero Lake (russian: Умбозеро, named after the adherent Umba River) is located in Murmansk Oblast of Russia, between the Khibiny on the west and Lovozero Tundras on the east. Area is 422 km², average depth is 15 m, maximum is 1 ...

), its type locality is Vuonnemiok River Valley,

Khibiny Massif The Khibiny Mountains (russian: Хиби́ны ; sjd, Umptek) is one of the two main mountain ranges of the Kola Peninsula, Russia, within the Arctic Circle, located between Imandra and Umbozero lakes. The range is also known as Khibiny Massif, K ...

, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.Handbook of Mineralogy (HOM - MSA) - Umbite
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References

Inosilicates Orthorhombic minerals Minerals in space group 19 {{silicate-mineral-stub