Dazzling Opalescent Ammonite Fossil For Sale
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Dazzling Opalescent Ammonite Fossil


One of the most beautiful fossils known to man; ammonites from the Bearpaw Formation occasionally turn into an astonishing multicolored gemstone. The colour and preservation of this example mark it out as exceptional. This remarkable display piece shows one side of the ammonite, Placenticeras costatum, within a rocky matrix, dating to the late Cretaceous, around 75 million years ago. The nacre within the shell of this prehistoric creature has turned into a dazzling multicolored stone, sometimes referred to as Ammolite. The beautiful, iridescent colour, changing with the light, is a unique phenomenon found in fossils of the Bearpaw Formation, Alberta, Canada. These ammonites are often regarded as being the most beautiful of all fossils, with this being a particularly pleasing example in terms of its shape, color, size and preservation. A wall bracket is attached at the back for mounting. Measures: Height 17 1/2 inches in matrix. Width 22 1/2 inches in matrix.


  • Production Time
    Available Now
  • Place of Origin
  • Date of Manufacture
    15th Century and Earlier
  • Diameter
    22.5 in. (57.15 cm)
  • Seller Location
    London, GB
  • Reference Number
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About the Seller

5 / 5
1stdibs seller since 2014
Located in London, GB
LAPADA - The Association of Arts & Antiques Dealers
International Confederation of Art and Antique Dealers' Associations
The British Antique Dealers' Association
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