Mineralpedia Details for Mcallisterite
Mcallisterite from Hard Scramble claim, Inyo Co., California, United States
The Mcallisterite clusters are the white efflorescent product, which looks like popcorn. The colorless, acicular sprays are Gowerite. The specimen itself is semi-important if you look at the old tag and read the historical aspect of it. Apparently it is type material sent to Frondel, who sent the material to a Russian named Belov to work out the crystal structure.