Halurgite

Image

White globular aggregate of the very rare Mg borate halurgite from the type and only known locality worldwide: Chelkar Salt Dome, Aksai Valley, Shalkar, Aktobe Province, Kazakhstan. Ex Vandenbroucke Museum collection from Waregem, Belgium.

© Photo by David Hospital, via Wikimedia Commons, CC-BY-SA-4.0

Properties

Formula Mg4[B8O13(OH)2]2·7H2O
Abbreviation Hlg
Classifications Minerals containing H2O, Minerals containing OH
Luminescence emitters Mn, O
IMA Status Approved (IMA 1967 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Hydrated , Hydroxide , Mineral, Borate

Composition

Element Atoms
H 18
B 16
Mg 4
O 37
Total: 75

Reference

Reference
Lines Spectra Images
Gaft et al. 1979; 1981 3 0 0