-
Volborthite (rare)
- Monument No. 1 Mine, Monument No. 1 channel, Mystery Valley, Mineral Mining District, Navajo Co., Arizona, USA
- Ex. Brian Kosnar
- Thumbnail, 2.1 x 1.2 x 0.6 cm
- Start Time: 12/21/2023 6:45:00 pm (CST)
- End Time: 12/28/2023 6:45:00 pm (CST)
- Auction Closed
- Winning Bid: $70
Item Description
A beautiful thumbnail specimen of Volborthite from the MONUMENT No. 1 Mine in Mystery VALLEY in Arizona (mistakenly labeled originally as coming from Monument Valley). This locality is best known for its Volborthite specimens which have a characteristic electric yellow-green color, and platy, sometimes "rosette"-like crystal formations. Typically species with this kind of color can attribute it to the presence of uranium, but that is not the case with Volborthite, as it is a hydrated copper hydroxyl vanadate. This piece has a fair amount of crystals which are associated with minor pale blue Chrysocolla. We've photographed the crystals with a Canon MP-E 65 mm macro lens to better illustrate the quality. Ex Brian Kosnar collection.
Did You Know We Offer Custom Bases?
Learn MoreMiss this auction? Buy Volborthite mineral specimens on iRocks.com
Bidding History
| Bid Amount | Bid Time |
|---|---|
| $70 | 12/28/2023 6:29:25 pm (CST) |
| $60 | 12/28/2023 6:05:27 pm (CST) |
| $50 | 12/28/2023 5:44:14 pm (CST) |
| $45 | 12/27/2023 1:05:40 am (CST) |
| $40 | 12/27/2023 12:06:18 am (CST) |
| $35 | 12/26/2023 12:56:46 pm (CST) |
| $30 | 12/26/2023 12:56:40 pm (CST) |
| $25 | 12/26/2023 12:56:39 pm (CST) |
| $20 | 12/25/2023 1:46:40 pm (CST) |
| $15 | 12/25/2023 1:46:40 pm (CST) |
| $10 | 12/21/2023 8:37:35 pm (CST) |