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Description

Group of (2) Ulexite Specimens
West Baker Mine, West Baker, Kramer Borate deposit, Boron, Kern County, California, USA
11.2 x 9.7 x 3.8 cm (4.41 x 3.82 x 1.50 in)
10.6 x 8.9 x 5.2 cm (4.17 x 3.50 x 2.05 in)

Offered in this lot is a set of two fibrous, white to tannish Ulexite specimens that each radiate upward from a single point, almost resembling "mushrooms" or "clamshells." Both specimens come from the West Baker Mine, an older borate mine that is now covered by the dumps from another nearby mining operation.

From the collection of Daniel "Dan" R. Kennedy.
Ex. Jim and Dawn Minette collection.


More Information: Both pieces are in good condition but have residual patches of adhesive from previous repair work along one of the side edges. There is no indication that the two pieces in this lot were previously joined together.


Condition Report*: Condition report available upon request.
*Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.

Auction Info

Proxy Bidding Ends 
January
24th Saturday 5:50 pm CT
Auction Dates
January
24th Saturday
Proxy Bidding Time Remaining 
1 Day 19h 38m 39s
Internet/Mail Bids: 1
Lot Tracking Activity: 5
Page Views: 107

Buyer's Premium per Lot:
25% of the successful bid (minimum $49) per lot.

This lot is in: 1 - Nature & Science Session
(Lots 48001-48210) - 6:00 PM Central Time, Saturday, January 24, 2026.
[Proxy bidding ends ten minutes prior to the session start time. Live Proxy bidding on Heritage Live now starts within 2 hours of when the auction opens for proxy bidding and continues through the live session.]

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Additional Location Info:
Heritage Auctions - Dallas
2801 W. Airport Freeway
Dallas, TX 75261

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