Dims: 2.1" x 1.9" x 1.1" (5.3 x 4.8 x 2.8 cm)
Wt: 1.02 oz. (28.9 g)
Dallas Gem Mine, San Benito County, California, U.S.A.
Though most of the Benitoite crystals on this specimen are quite small, there are at least a dozen of them, and most are in excellent condition. Most range in size from 2-5 mm in any dimension, but one particular crystal has dimensions of 0.4 x 0.2 x 0.2" (1.0 x 0.5 x 0.5 mm). All have an excellent trigonal tabular form, and there are 5 crystals other than the dozen or so aforementioned that are damaged and incomplete due to the specimen's separation from its place of origin. All of the Benitoites have a moderate grayish-blue coloration and show a dull, pearly-to-waxy luster. They are dimly transparent, so that one can see that all have considerable internal fracturing. They rest on an almost massive natrolite crust, and are accompanied by at least 20 prismatic neptunite crystals that have excellent form, a black color, and a vitreous luster. Though there is no image of it, the Benitoites glow a bright blue under shortwave UV radiation- one might be surprised at just how much Benitoite is on this piece.