A 7.0 cm tall quartz stalactite of sparkling, snow white, drusy quartz, is the host for a few crystals of pearlescent barrerite, to 3.75 cm in length, a rare member of the zeolite family. Rarer still, this was from a one time discovery in Alaska. I recall when they came out, and a single dealer had a table or two full of them at one of the hotel mineral shows run by Marty Zinn. Superb!