Here large specimen featuring blue anhydrite crystals topped with calcite crystals from Naica Mine, Chihuahua, Mexico. The anhydrite formed thick, elongated crystals with a pale blue color. The calcite formed scalenohedral crystals that completely cover the backside, and are sparsely scattered across parts of the front. The calcite is fluorescent as well. A very large cluster for the species! Nice example from this iconic mine!

Dimensions: 14.4 by 10.5 by 9 cm

Weight: 1253 grams (2.8 pounds)