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Chalcocite (superb quality) (ex Irv Brown Collection) viewBack to SPECIAL NEW YEAR'S MINERAL AUCTION - MINIATURES AND THUMBNAILS FROM THE COLLECTION of IRV BROWN - ends January 3, 2019

Butte District, Silver Bow County, Montana
  • Starting Time:12/20/2018 07:00:00 PM(CST)
  • Ending Time:1/3/2019 07:00:00 PM(CST)
  • Time Left:Auction Is Closed

  • Start Bid:$10
  • Reserve Bid:$10
  • Current Bid:$420
  • Size:Thumbnail
  • Size Description:2.7 x 2.3 x 1.8 cm

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.

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Amount Time Date Bidder
$420 06:47 1/3/2019 bear1
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$10 09:11 12/20/2018 jmzdrum91