Skip to main content
Go to accessibility notice
Home / Art & Antiques / 2013 June 2 Nature & Science Signature Auction, featuring The Hoppel Collection of Fine Minerals - Dallas Auction #5110 / Lot #87338
    LOT #87338  | 
    Sold on Jun 2, 2013 for: Sign-in or Join (free & quick)

    SPECTACULAR "GEM" AMMONITE . Placenticeras costatum. Late Cretaceous. Bearpaw Formation. Alberta, ...

    Click the image to load the highest resolution version.
    • Fossils:Cepholopoda, SPECTACULAR "GEM" AMMONITE . Placenticeras costatum. Late Cretaceous. Bearpaw Formation. Alberta, ...
    • Fossils:Cepholopoda, SPECTACULAR "GEM" AMMONITE . Placenticeras costatum. Late Cretaceous. Bearpaw Formation. Alberta, ...
    Fossils:Cepholopoda, SPECTACULAR "GEM" AMMONITE . Placenticeras costatum. Late Cretaceous. Bearpaw Formation. Alberta, ... Fossils:Cepholopoda, SPECTACULAR "GEM" AMMONITE . Placenticeras costatum. Late Cretaceous. Bearpaw Formation. Alberta, ... View More >
    Sold on Jun 2, 2013 for: Sign-in or Join (free & quick)
    Make Offer: Make Offer to Owner
    $10,000 or more

    This item's owner is actively responding to offers, usually within 3 days. Most owners in this category are still actively buying, and therefore interested only in offers where they can net (after our 10% fee) an amount sufficiently above today's market value. Owners in this category seldom counter-offer, and will usually simply reject offers placed at current auction values or lower.
    Offers to date:
    $10,000 on February 20, 2021

    View Recent Offers on Sold Items in this category
    Claim Item:
    View Condition Report
    Track Item Share this lot

    Sell One of These Currency Converter

    Description

    SPECTACULAR "GEM" AMMONITE
    Placenticeras costatum
    Late Cretaceous
    Bearpaw Formation
    Alberta, Canada

    Spectacular "Gem" Ammonites are highly prized in museums and collections around the world. This fine specimen dates back 70 million years ago and is an excellent example of what is considered a Canadian national treasure - from the premier fossil locality for gem ammonites. This locality is the only place in the world that produces Ammonite specimens with unbelievable bright, beautiful and iridescent colors. In fact, the preservation is so good that the World Jewelry Confederation gave the fossilized shell material, known as Ammolite, gemstone status in 1981, the same year commercial mining of Ammolite began. The color is primarily a function of the fossil preservation of the shell nacre. Significant deposits of gem-quality Ammolite are only found in the famous Bearpaw Formation in southern Alberta, Canada. This incredible specimen has numerous features which set it apart: First, it shows an abundance of blue and purple coloration on the shell which is not typical for even the most colorful of specimens; Second, the ammonite is quite large, and the fossil is also rather inflated, whereas most of the matrix specimens have been flattened and, although colorful, lack the three dimensional aspect of this museum-quality piece. This stunning jet black matrix measures 43 x 27 x 3 inches (109.22 x 68.58 x 7.62 cm). The gem ammonite itself is an impressive 17 x 16 inches (43.18 x 40.64 cm) and has dominant patches of brilliant blue, purple, green, red and gold. The piece is fitted for hanging with double metal cleat hangers and comes with a Certificate of Authenticity. This specimen is worthy of any fine museum or gallery.

    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
    June, 2013
    2nd Sunday
    Bids + Registered Phone Bidders: 5
    Lot Tracking Activity: N/A
    Page Views: 7,429

    Buyer's Premium per Lot:
    25% on the first $50,000 (minimum $14), plus 20% of any amount between $50,000 and $1,000,000, plus 12% of any amount over $1,000,000 per lot.

    Shipping, Taxes, Terms and Bidding
    This item cannot be shipped using standard methods. Please contact us for more information. Sales Tax information

    Important information concerning Sales Tax and Resale Certificates. Learn More

    Terms and Conditions  |  Bidding Guidelines and Bid Increments |  Glossary of Terms

    Viewing at %
    Please enter a value between % and 100% and press your "Enter" key. Close
    Fit to screen View Full Size Brightness
    Sold on Jun 2, 2013 for: Sign-in or Join (free & quick)
    Sold on Jun 2, 2013 for: Sign-in or Join (free & quick)
    Track Item
    Coming soon:

    Luxury Real Estate
    Opens about 01/22/2021

    Jewelry & Timepieces
    Opens about 03/08/2021

    Comics & Comic Art
    Opens about 03/12/2021

    World & Ancient Coins
    Opens about 03/07/2021

    Fine Art
    Opens about 03/17/2021

    Comics & Comic Art
    Opens about 03/19/2021

    Decorative Art
    Opens about 03/18/2021

    US Coins
    Opens about 03/08/2021

    Jewelry & Timepieces
    Opens about 02/24/2021

    Musical Instruments
    Opens about 03/23/2021

    Photography
    Opens about 03/22/2021

    Fine Art
    Opens about 03/23/2021

    Photography
    Opens about 03/24/2021

    Comics & Comic Art
    Opens about 03/18/2021

    Sports Collectibles
    Opens about 04/01/2021

    US Coins
    Opens about 03/16/2021

    Decorative Art
    Opens about 03/26/2021

    Historical
    Opens about 03/29/2021

    World & Ancient Coins
    Opens about 03/21/2021

    Fine Art
    Opens about 03/31/2021

    Fine Art
    Opens about 04/01/2021

    Currency
    Opens about 04/02/2021

    US Coins
    Opens about 04/02/2021

    US Coins
    Opens about 03/22/2021

    World & Ancient Coins
    Opens about 03/28/2021

    Decorative Art
    Opens about 04/06/2021

    Decorative Art
    Opens about 04/08/2021

    Currency
    Opens about 04/12/2021

    Illustration Art
    Opens about 04/09/2021

    Decorative Art
    Opens about 04/09/2021

    Entertainment
    Opens about 04/12/2021

    Luxury Accessories
    Opens about 04/12/2021

    Jewelry & Timepieces
    Opens about 04/02/2021

    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
    Only 5 days left to consign to the 2021 May 20 Silver & Vertu Signature Auction - Dallas!

    Learn about consigning with us

    Thank you for all that you did to make the auction sale of my silver and art glass consignment a tremendous success.
    H. W. ,
    Memphis, TN
    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