Hubnerite with Monazite-(Ce)

Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia
Small Cabinet, 7.8 x 6.1 x 2.2 cm
Start Time: 02/11/2016 6:45:00 pm (CST)
End Time: 02/18/2016 6:45:00 pm (CST)
Auction Closed

Item Description

This is a good matrix specimen of Hubnerite from one of the most famous classic Bolivian localities. There are many sharp, bladed, black (a very slight red color will appear with strong lighting) crystals of Hubnerite up to 2.0 cm which are associated with sharp, lustrous, translucent, "butterfly"-twinned crystals of pinkish-orange Monazite-(Ce) on the reverse side of the specimen which are sitting on very gemmy, lustrous Quartz crystals on matrix. The Monazite crystals actually show a color change from a pinkish-orange hue in sunlight to a whitish-yellow color in incandescent light. These specimens are not common from Siglo XX, and this piece is one of the better quality display specimens of the material that I have handled.

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