Dims: 5.0x3.5x2.3" (12.7x8.9x5.8 cm)
Wt: 25.5oz. (722g)
Dallas Gem Mine, San Benito County, California, U.S.A.
The matrix of this specimen is host to some of the largest crystals of benitoite I have ever seen. Two of these crystals are 0.7" (1.8cm) on edge! There are at least two dozen crystals of benitoite on this specimen, neptunite crystals ranging from minute up to 0.1" (0.3cm) in length, and a very large number of tiny joaquinite crystals. All of these minerals occur on or within a bed of massive white natrolite, on a matrix of altered serpentine. The benitoites show a play of color on their surfaces as one turns them under a light. Several of the benitoites on this specimen are damaged, mostly near the edges of the specimen. Even with the damaged crystals, this is still an incredible specimen.