- More
SPECTACULAR "GEM" AMMONITE . Placenticeras costatum. Late Cretaceous. Bearpaw Formation. Alberta, ...
Click the image to load the highest resolution version.$10,000 or more
$10,000 on February 20, 2021
View Recent Offers on Sold Items in this category
Description
SPECTACULAR "GEM" AMMONITEPlacenticeras 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.
Auction Info
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.
This item cannot be shipped using standard methods. Please contact us for more information. Sales Tax information
Terms and Conditions | Bidding Guidelines and Bid Increments | Glossary of Terms
Floor auctions
Open for bidding: (View All)Fine Art
Ends on 03/05/2021
Jewelry & Timepieces
Ends on 03/05/2021
US Coins
Ends on 03/08/2021
Photography
Ends on 03/10/2021
Fine Art
Ends on 03/11/2021
Decorative Art
Ends on 03/11/2021
Fine & Rare Wine
Ends on 03/12/2021
Western & Texas Art
Ends on 03/12/2021
Comics & Comic Art
Ends on 03/13/2021
US Coins
Ends on 03/15/2021
Decorative Art
Ends on 03/16/2021
US Coins
Ends on 03/17/2021
Fine Art
Ends on 03/17/2021
Sports Collectibles
Ends on 03/18/2021
Nature & Science
Ends on 03/19/2021
World & Ancient Coins
Ends on 03/21/2021
US Coins
Ends on 03/22/2021
Fine Art
Ends on 03/24/2021
World & Ancient Coins
Ends on 03/25/2021
Comics & Comic Art
Ends on 03/25/2021
Movie Posters
Ends on 03/27/2021
Currency
Ends on 04/04/2021
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
- Past Auction Values (prices, photos, full descriptions, etc.)
- Bid online
- Free Collector newsletter
- Want List with instant e-mail notifications
- Reduced auction commissions when you resell your
winnings
- Cash Advances
- More Bidders
- Trusted Experts
- Over 200,000 Satisfied Consignors Since 1976
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.View More Testimonials
HA.com receives more traffic than any other auction house website. (Source: Similarweb.com)