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Description

"Herkimer Diamond" Quartz
Herkimer Diamond Mine, Middleville, Town of Newport, Herkimer Co., New York, USA
9.9 x 8.3 x 4.9 cm (3.88 x 3.26 x 1.92 in)

The phrase "Herkimer Diamond" comes not from the species (this is not a diamond!) but rather the resemblance of the Herkimer County Quartz crystals to Diamond gemstones. This is because of the sharp faceted quality of the Quartz from this area. The crystals are doubly-terminated, with large pointed terminations and very shortened prisms in the centers, almost like a Beta Quartz habit. The crystal size varies, but this particular specimen has very large complete crystals, with the largest being a hefty 7 centimeters from tip to tip. As the name alludes to, the clarity and luster of this cluster is excellent: glassy on the outside, and extremely transparent throughout. This transparency allows one to see the small but sparky petroleum inclusions within the crystal, which glow yellow under a UV blacklight. The composition of the Quartz is also excellent: there is a good mix of large and small crystals, and they're arranged in a pleasing manner, with great balance all around. The condition is great, with only minor chattering on some edges. There are, as expected, two repairs, basically requisite for this particular material.

From The John Farmer Collection.


Estimate: $800 - up.

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 
December
25th Thursday 7:50 pm CT
Auction Dates
December
25th Thursday
Proxy Bidding Time Remaining 
2 Days 36m 23s
Internet/Mail Bids: 0
Lot Tracking Activity: 5
Page Views: 80

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

This lot is in: 1 - Nature & Science Session
(Lots 79001-79055) - 8:00 PM Central Time, Thursday, December 25, 2025.
[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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** Lots bearing estimates and without Consignor Reserve shall open at Heritage Auctions' discretion (usually 25% to 60% of the low estimate).

Starting Bid:
$400
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