armenite

armenite

[är′mē‚nīt]
(mineralogy)
BaCa2 Al6Si8O28·2H2O Mineral composed of a hydrous calcium barium aluminosilicate.
References in periodicals archive ?
Armenite [BaCa.sub.2][Al.sub.6][Si.sub.9][O.sub.30]*2[H.sub.2]O
In 1939 Neumann published the first description of the barium mineral armenite, found in one specimen in the collection of the Mineralogical-Geological Museum in Oslo.
Good-quality specimens of calcite, quartz, fluorite, sphalerite, stilbite, epidote, argentite and native silver, and nice microcrystals of the rare minerals armenite, brewsterite and rapidcreekite have also recently been found.
The other new Swiss thumbnail mineral is something much rarer and less familiar: the largest crystals of armenite yet found in the world, reportedly collected in the late 1970's on the Wasenalp, near the Simplon Pass, Canton Valais.
Cherbadung rarities in this part of the room, and in microcrystals, included asbecasite, chernovite-(Y), cervandonite-(Ce), and fetiasite with anatase; and then there were a few thumbnails of white microcrystallized armenite from Wasenborn, Simplon area.