Kyanite after andalusite(?) in lazulite -
Mürztal, Styria, Austria


           
Description: Pale blue lazulite with pink apatite and chlorite-filled cracks. At the bottom grey apatite.
The white lens at the top of the sample consists of kyanite + some muscovite, both possibly replacing former andalusite?
In contrast to host rock "xenoliths", this kyanite-rich aggregate does not contain any rutile or zircon.
Locality: Gravel pit, Hönigsberg, Mürztal, Styria, Austria.
References:
Sample details: Gift of Peter Tomazic, Mürzzuschlag. Polished slab. Field of view 12 cm. Sample AN229 (MT001).
last changes: 236.2005