Dragon Minerals - September 10, 2020 Update

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28305:
Ulexite and Calcite - $26
Boron Open Pit, Boron, Kramer District, Kern County, California
Small cabinet - 8.1 x 3.6 x 3.1 cm (3.2 x 1.4 x 1.2 inches)
58 grams (0.13 pounds)
Ex Jim Minette collection
Specimen status: Available     Send an email with specimen number to order

A vertical (or horizontal, if you prefer) column composed of parallel, silky ulexite fibers is decorated with a group of translucent, grayish calcite crystals. These calcites have a somewhat elongated shape, and like the ulexite, are somewhat silky. Under shortwave UV, the calcite displays a bluish-white fluorescence. The specimen sits horizontally (as shown) or vertically; neither position requiring a stand. Overall condition is quite good. Material of this nature was at one time fairly common on the mineral market - especially here in Southern California - but with the locality being closed to collecting for some years, these specimens - especially those of quality - have become more scarce. From the collection of noted Southern California borate specialist Jim Minette.









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