Adularia and Chlorite    Val Crystallina, Lukmanier, Graubunden, Switzerland. Ex. Harold L. Dibble collection. This crystal measures 7 x 4.6 x 4 cm and is nicely twinned. The penetration twin shows nicely, sharp overlapping flanges on front and back. There is only minor chlorite but it adds a nice contrast to the piece. There is minor edge chatter in a couple of spots, as seen, but it is obvious that the overall condition is very good. Large crystal size, good translucent, and a nice luster make this a desirable specimen. $220