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Home / Art & Antiques / 2016 December 29 Thursday Internet Natural History Auction Auction #211652 / Lot #80003
    LOT #80003  | 
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    Poldervaartite. N'Chwaning Mines. Kuruman, Kalahari manganese field. Northern Cape Province. South Africa. 2.85 x 2.10 x 1...

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    • Minerals:Small Cabinet, Poldervaartite. N'Chwaning Mines. Kuruman, Kalahari manganese field. Northern Cape Province. South Africa. 2.85 x 2.10 x 1...
    • Minerals:Small Cabinet, Poldervaartite. N'Chwaning Mines. Kuruman, Kalahari manganese field. Northern Cape Province. South Africa. 2.85 x 2.10 x 1...
    Minerals:Small Cabinet, Poldervaartite. N'Chwaning Mines. Kuruman, Kalahari manganese field. Northern Cape Province. South Africa. 2.85 x 2.10 x 1... Minerals:Small Cabinet, Poldervaartite. N'Chwaning Mines. Kuruman, Kalahari manganese field. Northern Cape Province. South Africa. 2.85 x 2.10 x 1... View More >
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    Description

    Poldervaartite
    N'Chwaning Mines
    Kuruman, Kalahari manganese field
    Northern Cape Province
    South Africa
    2.85 x 2.10 x 1.57 inches (7.24 x 5.34 x 4.00 cm)

    The extremely rare mineral Poldervaarite might actually be a misnomer since it is so closely related to Olmiite making most examples of the variety actually the other species. Only a difference in their percentage of calcium versus manganese keeps the two separate. The earthy example features a large ball of reddish-brown glossy Poldervaarite/Oliimite and another smaller sphere atop rust golden-brown matrix coating with some smaller micro crystals. The gumdrops stand out from the granular matrix.

    [Scale: 1 inch, with mark at 1 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. 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

    Auction Dates
    December, 2016
    29th Thursday
    Internet/Mail Bids: 0
    Lot Tracking Activity: N/A
    Page Views: 233

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