Robuta

https://www.webmineral.com/specimens/picshow.php?id=3186&target=Ramanite-(Cs) Ramanite-(Rb) Ramanite-(Cs) Santite Image Unheated Type-B melt inclusions in graphic quartz. 1 = ramanite-(Cs), 2 = sassolite, 3 = ramanite-(Rb), 4 = santite, 5 = topaz, V = vapor. (AmMin, v93:1035).... rbcsimage