Azurite with Malachite (ex Kay Robertson Collection)

New Cornelia Mine (Ajo Mine), Ajo, Pima County, Arizona
1.5 x 1.1 x 0.8 cm
Start Time: 09/17/2020 8:45:00 pm (CDT)
End Time: 09/24/2020 6:45:00 pm (CDT)
Auction Closed
Winning Bid: $36
Winning Bidder: denham92

Item Description

A classic example of this famous material from Ajo featuring a sharp, well-formed, deep blue colored prismatic crystal of Azurite partially altering to mint green colored Malachite on the back sitting on a tiny bit of matrix. The Azurite crystal is actually doubly-terminated, and shows no major damage (only a few TINY Wilbers), though it is contacted on the back. A great representation of this well-known historic material. Ex Kay Robertson Collection (#7282). Kay was a prominent California collector, who specialized in European classics. She nearly lived 100 years from April 1920 - March 2020. See the article in the March-April, 2007 Mineralogical Record ( https://www.mineralogicalrecord.com/pdfs/Kay%20Robertson%20Collection.pdf ), and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017.

Bidding History

Bidder Bid Amount Bid Time
denham92 $36 09/24/2020 6:38:42 pm (CDT)
hsudude22 $31 09/24/2020 6:06:18 pm (CDT)
nmz $26 09/24/2020 6:00:38 pm (CDT)
hsudude22 $21 09/22/2020 6:20:32 pm (CDT)
TJ $16 09/22/2020 6:20:25 pm (CDT)
hsudude22 $15 09/22/2020 6:20:25 pm (CDT)
TJ $10 09/19/2020 6:34:50 am (CDT)