Halides - a group of minerals that are compounds of halogens with other chemical elements or radicals .
Halide minerals include fluoride , chloride, and very rare bromide and iodide compounds. Fluoride compounds (fluorides) are genetically associated with magmatic activity, they are volcanic sublimates or products of hydrothermal processes , sometimes they have sedimentary origin.
Halide minerals are sediments of seas and lakes and the main minerals of salt strata and deposits . Some halogen compounds are formed in the oxidation zone of sulfide (copper, lead and other) deposits.
Typical fluoride class minerals are villiomite NaF, fluorite CaF 2 , cryolite Na 3 AlF 6 ; the class of chlorides is halite NaCl, sylvin KCl, carnallite KMgCl 3 · 6 (H 2 O). Raw materials in the food , chemical , metallurgical industries [1] .
Notes
- ↑ Natural halides // Kazakhstan. National Encyclopedia . - Almaty: Kazakh encyclopedias , 2005. - T. II. - ISBN 9965-9746-3-2 .
Literature
- Mineralogy and petrography. - M .: State Scientific and Technical Publishing House of Literature on Geology and Mineral Protection, 1958. - P. 179.