Occurs in peridotite incorporated in a Variscan subducted crustal slab which crystallised under eclogite-facies conditions or during the early stage of retrogression in the amphibol ite facies. Mg-analogue of allanite-(L
Approved IMA 2003 (Dana # Added)
Found in a peridotite body from the Ulten zone (Austroalpine domain, Eastern Alps. Link to MinDat.org Location Data.
Named for its A2 site cation content and relationship to Dissakisite-(Ce).