ID 560655
Lot 700 | Irisidescent Ammonite
Estimate value
€ 6 000 – 9 000
Canada.
Date: Late Cretaceous period, Bearpaw-Formation (75-72 million years).
Maker/Designer: Placenticeras costatum.
Measurement: Ca. 76x61cm.
Condition B.
Provenance:
Christie's, London, 2017.
The opal-like iridescence of these ammonites from Alberta, Canada, is called ammolite and has had gemstone status since 1981. The shimmering, metallic colors were formed by the combination of millions of years of compaction and mineralization of iron, copper and silica precipitated from volcanic ash.
| Place of origin: | Canada |
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| Auction house category: | Early Works of Art |
| Place of origin: | Canada |
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| Auction house category: | Early Works of Art |
| Address of auction |
VAN HAM Kunstauktionen GmbH Hitzelerstr. 2 50968 Köln Germany | ||||||||||||||
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