Hyalotekite

Image

Outstanding vitreous colorless crystals of the very rare mineral hyalotekite from one of the only 3 known localities worldwide: Artillery Peak, Artillery Mountains, Mohave County, Arizona, United States of America. Associated to minoritary blue kinoite. E

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

Properties

Formula (Ba,Pb,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28F
Abbreviation Hya
Classification Hyalotekite (group)
Luminescence emitters Dy, Sm, Tb
IMA Status Grandfathered (pre-IMA), 1877
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Triclinic, Point group 1, Space group P1 (#2)
Tags Mineral, Borosilicate

Composition

Element Wt%
F 1
Na 0.13
K 0.74
Be 0.27
Mg 0.05
Ca 5.62
Ba 18.09
Mn 0.23
Fe 0.05
Cu 0.07
B 1.17
Al 0.1
Si 18.57
Pb 23.46
O 30.39
Cl 0.06
Total: 100

Reference

Reference Lines Spectra Images
Gorobets and Rogojine 2002 5 0 0