Bazirite

bazirite

elpidite

leucophosphite

monazite

Images

Formula: BaZrSi3O9
Cyclosilicate (ring silicate), benitoite group, barium- and zirconium- bearing mineral
Crystal System: Hexagonal
Specific gravity: 3.82 calculated
Hardness: 6 to 6½
Streak: White
Colour: Colourless
Luminescence: Does not fluoresce under long wave UV, pale blue fluorescence under short wave UV; strong blue cathodoluminescence
Common impurities: Sn
Environments

Plutonic igneous environments

Localities

At the type locality, Rockall Island, Outer Hebrides, Scotland, UK, bazirite occurs as a late-stage interstitial mineral in aegirine-riebeckite granite. Associated minerals include elpidite, aegirine, albite, cristobalite, leucophosphite, monazite, quartz, apatite, eudialyte, magnetite, pyrochlore, xenotime, baryte and titanite (HOM). Crystals are small and prismatic, up to 0.65 mm long and 0.25 mm across (AM 61.175).

At the Esquire No. 7 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California, USA, bazirite occurs in granular celsian-bearing rocks near contacts with granite. Associated minerals include taramellite, celsian, diopside and actinolite (HOM).

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