Panasqueira Mine, Panasqueira, Covilhã, Castelo Branco District, Portugal

    One of the more exotic mineral combinations to come out of Panasqueira is that of Marcasite forming epitaxial overgrowths on Arsenopyrite. It is somewhat difficult to tell where the Arsenopyrite ends and the Marcasite begins. Arsenopyrite crystals some 2.25 inches (6.0 cm) long that have thin layers of Marcasite sheathing their upper portions, and were it not for the subtle shift in color and luster, one could easily overlook the fact that there are two minerals involved. The luster of the Marcasite is so good that it looks fake. One of the great benefits of owning a Marcasite specimen from Panasqueira is that the Marcasite is unusually stable, in contrast to other localities. Numerous white Dolomite crystals are nestled in and around. The condition of the piece is pristine. This combination is rare from Panasqueira and not likely to be seen again, anytime soon.
    Overall measurements: 5 x 3 x 2.25 inches (12.7 x 7.6 x 5.7 cm).

    Provenance: Attard Minerals [Hoppel # D0548]

    Estimate: $3,000 - $4,500.

    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. 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
    October, 2013
    19th-20th Saturday-Sunday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
    Page Views: 398

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