Manganese Deposit, Ilfeld, Nordhausen, Harz, Thuringia, Germany

    For some minerals, there is one locality that produces specimens so unique and distinctive that they represent: a benchmark for all others. For Manganite that place is Ilfeld, where brilliantly lustrous black prisms with flat terminal faces were found in a Manganese mine, during the short period between 1886 and 1888. All extant Ilfeld pieces date from this two-year period. This particular Manganite displays the classic form: shining deep black crystals up to 1.25 inches in length radiating in a random manner out from a massive matrix of the same mineral. The prisms are terminated by flat surfaces of a simple planar type. The luster is brilliant even on the sides of the crystal where longitudinal striations abound. The condition is quite excellent.
    Overall measurements: 4 x 3 x 2.5 inches (10.2 x 7.6 x 6.4 cm).

    Provenance: Collector's Edge [Hoppel # D0036]

    Estimate: $12,000 - $14,000.

    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. 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: 746

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