Chalcocite (superb quality) (ex Irv Brown Collection)

Butte District, Silver Bow County, Montana
2.7 x 2.3 x 1.8 cm
Start Time: 12/20/2018 7:00:00 pm (CST)
End Time: 01/03/2019 7:00:00 pm (CST)
Auction Closed
Winning Bid: $420

Item Description

One of the best Chalcocite thumbnails that I've seen from Butte. It easily could be mistaken for Bristol, Connecticut for it's superb quality, sharpness and excellent crystal form. Very aesthetic, pseudo-hexagonal (monoclinic) bladed crystals resting attractively on a larger blade in the center, creating a very 3-dimensional specimen. The largest individual crystal meaures 1.5 cm. It is complete and nearly pristine all around and displays 360-degrees. The individual crystals have beveled edges, striations, and a gray-black color that attractively complements the soft metallic luster and slight iridescent patina. This is an excellent Chalcocite from a classic and important locality for which the species seldom gets this good! VERY sharp! Valued at $2,500 for the size, quality, aesthetics and overall appeal. From the worldwide thumbnail / miniature collection of Irv Brown.

Bidding History

Bidder Bid Amount Bid Time
bear1 $420 01/03/2019 6:47:24 pm (CST)
castun $375 01/03/2019 6:44:05 pm (CST)
hydro $365 01/03/2019 6:44:05 pm (CST)
castun $310 01/03/2019 6:28:29 pm (CST)
weloganites $300 01/03/2019 6:28:29 pm (CST)
castun $261 01/03/2019 6:11:52 pm (CST)
weloganites $251 01/03/2019 6:11:52 pm (CST)
castun $214 01/03/2019 4:04:31 pm (CST)
blmineral $204 01/03/2019 9:24:52 am (CST)
castun $183 01/03/2019 9:23:59 am (CST)
blmineral $173 01/03/2019 9:23:59 am (CST)
castun $152 12/26/2018 10:26:35 am (CST)
mineraldv $142 12/26/2018 10:26:35 am (CST)
castun $132 12/22/2018 6:29:28 pm (CST)
jmzdrum91 $10 12/20/2018 9:11:54 pm (CST)