This strange silicate forms pyramid-shaped crystals that are sharp and unusual. Usually the species is gray to white in color from other locales but here show with brown-red color. This specimen is one of several obtained by breaking open a single larger vug donated to the museum in the early 1900s, and features many sharp crystals to 3 mm on all sides of the specimen. We obtained 2 specimens with 2 labels, as shown here and on item #42