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The regional interactive encyclopedic portal «Bashkortostan»
Academy of Sciences of the Republic of Bashkortostan State autonomous institution of science of the Republic of Bashkortostan Bashkir encyclopedia

SELLAITE

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SELLAITE, a mineral of the fluorides class. Crystals are columnar, from long prismatic ones to needle‑like. Aggregates are fine‑grained, in the form of crystalline crusts and individual grains. The color is white, with glassy luster. It is formed in salt‑bearing, dolomite‑anhydrite, and fumarolic sediments and hydrothermal deposits. Abroad, S. (mainly synthetical) is used in optical production. In the Urals, S. was first expored in Bashkortostan at the Suranskoye Deposit of fluorspar, where it builds up the fluorite‑preceding veins with the formation temperature of 105—130°С; it is assigned a separate grade, its acknowledged reserves of category C1 amount to 19.08 thous. t.

Publication date: 06.11.2020
Last updated: 15.04.2021
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