Description

    MANGANITE
    Ilfeld, Nordhausen, Harz, Thuringia, Germany

    If it wasn't for the Ilfeld Manganese mines, Manganite would be relegated to back row status in the Pantheon of Fine Minerals. Fortunately, Manganite was rescued from obscurity by the brilliant, midnight-black crystal groups found in this part of the Harz Mountains. Of the various Manganite groups known, the one seen here is arguably in the top 5. Single crystals run riot over the upper surface of a massive Manganite/Pyrolusite matrix, with thin layers of the original wall rock visible on the absolute bottom of the specimen. Many of the crystals are over one inch, and some are much larger: up to 1.88 inches (4.74 cm). At better than 6.5 inches (16.5 cm) in length, this is not a small example of this mineral; it is a whopper of a Manganite group. The condition of this 'black beauty' is absolutely pristine with no visible damage. As befits a world-class specimen of Ilfeld Manganite, it comes with a custom acrylic base.
    Overall Measurements: 6.49 x 3.34 x 2.65 inches (16.5 x 8.5 x 6.74 cm)


    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.

    Fees, Shipping, and Handling Description: Flat Art Small Set (15-20) (view shipping information)

    Sales Tax information  |  Terms and Conditions

    Bidding Guidelines and Bid Increments

    Glossary of Terms

    Auction Info

    Auction Dates
    May, 2014
    4th Sunday
    Bids + Registered Phone Bidders: 4
    Lot Tracking Activity: N/A
    Page Views: 4,016

    Buyer's Premium per Lot:
    25% on the first $100,000 (minimum $14), plus 20% of any amount between $100,000 and $1,000,000, plus 12% of any amount over $1,000,000 per lot.

    Sold for: Sign-in or Join (free & quick)

    Heritage membership

    Join Now - It's Free

    VIEW BENEFITS
    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
      winnings 
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976
    Consign to the 2018 May 25 Photographs - Dallas.

    Learn about consigning with us

    I have to say I am very pleased with the final results and Heritage Auctions service.
    Philip M.,
    Truckee, CA
    View More Testimonials

    HA.com receives more traffic than any other auction house website. (Source: Similarweb.com)

    Video tutorial

    Getting the most out of search

    Recent auctions

    2017 October 13 Illustration Art Signature Auction - Dallas
    2017 October 13 Illustration Art Signature Auction - Dallas
    REALIZED SO FAR $1,069,515