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    Description

    "Matterhorn" Copper Specimen
    Keweenaw Peninsula
    Michigan, USA

    Certain pieces simply stand out from the rest, and this big example of crystallized Copper with large crystals measuring up to 3 inches (7.6 cm) is one such specimen. The classic mineral, likely mined during the late 1800s heyday when the majority of massive Coppers came out of the Keweenaw Peninsula, was probably out of the Ojibway Mine, but a lack of verifiable provenance precludes a definitive conclusion. The dark and heavy piece, which is a weighty 7 lbs. (3 kg), features large, blocky crystals usually associated with the fissure mines in that area. An obviously old collection number of "105" is marked on the rugged specimen, and a feature of this unique piece is the attribute that is has a void passing through a portion of its center created where three crystals converged. This is one of those superlative pieces of historical significance that really needs to be seen in person to be fully appreciated. There is something special when viewing this sizable mineral from every angle, and the chunk has so much character that it is nearly impossible to decide on a single orientation. With such a one-of-a-kind specimen, it is hard to overstate the museum quality and collectability of the mineral.
    Overall Measurements: 10.63 x 6.30 x 2.56 inches (27.00 x 16.00 x 6.50 cm)
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    [Scale: 1 inch, with mark at 1 cm]


    Estimate: $10,000 - $15,000.

    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. All lots are sold "AS IS" under the Terms & Conditions of Auction.

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    Auction Info

    Auction Dates
    November, 2016
    3rd Thursday
    Internet/Mail Bids: 0
    Lot Tracking Activity: N/A
    Page Views: 1,738

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