Dims: 4.2 x 3.3 x 1.3" (10.7 x 8.4 x 3.4 cm)
Wt: 9.2 oz. (262 g)
(likely Tooele Mine, Utah, U.S.A.)
This large cabinet specimen consists of a crumbly, rust-brown base rock from which extend several Chalcanthite formations. Each of these formations is made up of many partly intergrown Chalcanthite "tendrils" that are in fair to good condition, as most of them are broken. These tendrils do not exceed 0.4" (1.0 cm) in length and show no definite triclinic form, as the tendrils are uneven and often curved. Their bright blue coloration and waxy luster are standard for the specie, and all are translucent.