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Lot 8301
Large Iridescent Ammonite
3 December 2006, 11:00 PST
Los AngelesSold for US$21,510 inc. premium
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Find your local specialistLarge Iridescent Ammonite
Placenticeras meeki
Late Cretaceous
Bearpaw Formation, Southern Alberta, Canada
The flashing red-to-green iridescent colors of an exceptionally well preserved 70 -75 million-year-old ammonite are produced not by opalization as is often thought, but by the ammonite’s own mother-of-pearl layer which has been fossilized. The resulting brilliant material is known as ammolite and is considered a gemstone. Offered with a wooden stand. Measures 15 x 15 x 2in
Late Cretaceous
Bearpaw Formation, Southern Alberta, Canada
The flashing red-to-green iridescent colors of an exceptionally well preserved 70 -75 million-year-old ammonite are produced not by opalization as is often thought, but by the ammonite’s own mother-of-pearl layer which has been fossilized. The resulting brilliant material is known as ammolite and is considered a gemstone. Offered with a wooden stand. Measures 15 x 15 x 2in

