Fluorite var. Tiffany stone, Hyalite Opal & Bertrandite

Brush Wellman Mine, Spor Mountain, Thomas Range, Juab Co., Utah
Small Cabinet, 7.6 x 6.1 x 5.2 cm
Start Time: 11/16/2019 6:30:00 pm (CST)
End Time: 11/21/2019 6:30:00 pm (CST)
Auction Closed

Item Description

A colorful and uncommon combination from this less well-known Utah beryllium deposit. Lavender/purple microcrystalline to drusy fluorite is richly included in the sculptural vuggy small cabinet specimen. The matrix includes bertrandite, chalcedony and hyalite opal. It is certainly one of the most unique fluorite combinations in the mineral kingdom. This highly unusual fluorite varietal is called Tiffany Stone. The name is of uncertain origin perhaps named for a Tiffany Harris of Utah. Folklore wrongly attributes the name to Tiffany and Company of New York which used purple colors in its decorative glassware. It is a fine-grained purple to pale violet fluorite, usually with swirl patterns sometimes with small impurities of intergrown bertrandite, chalcedony, opal, and/or quartz (MINDAT). It is unique to this obscure Utan beryllium deposit. Bright lime-green hyalite opal fluorescence.

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