Mineral Specimen #4084 Djurleite, Benitoite, Joaquinite-(Ce), Natrolite
Gem Mine, San Benito Co., California
There are several very well formed Djurelite crystals on this specimen. These crystals are extremely nice for the species and especially for the location. The largest crystal is 3 mm across. The crystals are dark gray, almost black, in color. Also present are blue colored Benitoite crystals and small red/brown Joaquinite-(Ce) crystals, for which this is the type location for both species. The matrix is composed of fibrous blue/gray colored Crossite with a thin layer of white Natrolite. There was likely more Natrolite, which was removed with acid. The Natrolite is stained a bright green color in a few places by an unidentified material.
The specimen is in excellent condition with the exception of a chip on the largest Benitoite crystal.