| Peretti, A., Peretti, F., Tun, N.L., Günther, D., Hametner. K., Bieri, W., Reusser, E., Kadiyski, M., Armbruster, T. (2007): Gem quality johachidolite: occurrence, chemical composition and crystal structure. Contrib. Gemol., 2007 (5), 1-53. Knut Eldjarn specimen |
Pein-Pyit, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar