In synmetamorphic quartz segregations and as an accessory mineral in high-pressure metamorphic rocks. Experimental study indicates that the stability of bearthite is restricted to v ery Ca-poor or P-rich rocks under mode
Approved IMA 1993
Found on the western ridge of the Stockhorn, Zermatt Valley, Valais, Switzerland. Link to MinDat.org Location Data.
Honors Professor Peter Bearth (1902-1989), for his pioneering petrologic studies of the high-pressure terranes of the western Alps.