Ammolite
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Ammolite is an organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is commonly unearthed by natural erosion or through the process of various mining p
Unprocessed sample of ammolite; a "dragon skin" pattern is apparent
An iridescent ammonite from Madagascar
Korite's mechanized mining operations are fairly basic, involving the excavation of shallow pits with backhoes.
Another view of Korite's open-pit mining operations in Alberta, Canada.
Ammonoidea
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Ammonoids are extinct, typically coiled-shelled cephalopods composing the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish than they are to nautiluses, whi
Ammolite
…of various mining practices, within the perimeter of an ancient sea bed called the Western Interior Seaway. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. It is one of…
Pleuroceras solare, Little Switzerland, Bavaria, Germany
A variety of ammonite forms, from Ernst Haeckel's 1904 Kunstformen der Natur (Art Forms of Nature)
Fossil of Parapuzosia seppenradensis, one of the largest known ammonites
Oppelia in association with its aptychi plates