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    Description

    GEM AMMOLITE FOSSIL AMMONITE

    Placenticeras meeki
    Cretaceous
    Bearpaw Formation, Southern Alberta, Canada
    A dazzling example of these highly sought-after specimens, this bright, colorful ammonite flashes with golden green and fiery orange-red across the whole of its surface. It measures 12½ inches across and displays areas of three-dimensionality unusual for these specimens. The 23½ x 19½-inch dark-gray shale matrix provides the perfect background to highlight the dramatic aesthetic contrast of the fossil, whose shimmering iridescent colors were naturally created through the combination of millions of years of compression and the mineralization of iron, copper and silica which precipitated from volcanic ash. The resulting gemstone is known as Ammolite, and can be found only in this locality in southern Alberta, valued by local tribes for its powers of healing and of attracting buffalo. Unlike other gemstones, whose brilliance is caused by light reflected from the surface, the shimmering and ever-changing colors of ammolite are the result of light refracting through and rebounding from thin platelets of aragonite, the primary constituent of the ammonite's shell.


    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.

    Auction Info

    Auction Dates
    January, 2010
    17th Sunday
    Bids + Registered Phone Bidders: 1
    Lot Tracking Activity: N/A
    Page Views: 1,914

    Buyer's Premium per Lot:
    19.5% of the successful bid (minimum $14) per lot.

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