Ammonite & Ammolite: a Fossil & a Gemstone

Ammonites and Ammolites: fossil variations on the spiral.

Wikipedia: A variety of ammonite forms, from Ernst Haeckel’s 1904 Kunstformen der Natur (Art Forms of Nature) Haeckel Ammonitida Scientific IllustrationFossils of Ammonite shells found in museums and shops in Wales and Canada.A fossil ammonite in the Cardiff Museum, WalesFossils of Ammonite shells in the Cardiff Museum, WalesNautilus Shell FossilFossil nautilus shell in a gem store in BanffAn ammonite sliced in half.Ammonite fossil at the Beaty Biodiversity Museum at UBC, VancouverPolished ammonite fossil rock purchased as a souvenir in Morocco. The smallest ones are often used in jewelry.Polished ammonite fossil rock purchased as a souvenir in MoroccoSome ammonite shells originally contained a ‘nacre’, the pearly substance that causes the colour play you see on this modern close relative, the Nautilus shell.Nautilus Shell The fossils retain these opalescence.Fossils of Ammonite shells in the Cardiff Museum, WalesFrom Wikipedia: Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America, made of the fossilized shells of ammonites.

On fossilized ‘ammolites’, this nacre turns brilliant green, blue, red and gold. This fossil Ammolite was found in a shop in Banff, Canada.
Ammonite fossil in a gem store in Banff

Ammonite Art

A collage of Ammonite in the Buxton Museum in England.
Buxton Museum Ammonite Art CollagePen & ink with watercolour sketch of fossil hunting in the slate in the Okanogan overlaid in Photoshop with spiral ammonite fossil image.Pen & ink with watercolour sketch of fossil hunting in the slate in the Okanogan overlaid with ammonite fossil imageMore on Cee’s Fun Foto Challenge: Two ‘M’s in the Word.

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