Pseudomorphic Ammonite Reliquary - Fossil Pyritized Ammonite in Bronze or Silver

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Pseudomorphic Ammonite Reliquary - Fossil Pyritized Ammonite in Bronze or Silver

from 74.00

Seasons turn, colors fade, worlds are lost to time. But nature's memory is deep and bountiful, guarding ancient works of art such as these, transformed and immortalized by her miraculous alchemy. The complex autumn hues of fossil ammonite spiral into the mirror-sleek metallic-black limonite. Some of these are just partially morphed so you can see the natural fossil woven through it, while others look like chambered black mirrors. These are our smallest fossils, about the size of a coin, but epic in their history and detail.

These rare fossils are beautiful examples of a multi-stage pseudomorphism. Millions of years ago, these little mollusks were buried in a low oxygen environment and probably began to fossilize normally, until rising levels of iron and sulfides caused the fossils to partially pseudomorph into pyrite, and then rising oxygen levels transformed the pyrite into the black-metallic limonite. Several seasons of the earth are recorded in these fascinating little spirals.

Ammonites are prehistoric mollusks which lived during the Jurassic and Cretaceous periods, roughly 200 to 66 million years ago. They are the ancient ancestors of cephalopods such as nautilus, octopus, and squid. Its Greek name is ammonis cornua, "The Horn of Ammon," for the spiral shape of their shells resembles the coiled horns of a bull or ram, like those which adorned the ancient Egyptian sun god Ammon.

Each Ammonite is a unique relic of ages past, an aeon-forged treasure from another time and another world. Each is cradled in a spiraling cage of cast bronze. On its reverse side, behold the glorious Fibonacci sequence, The Golden Spiral, the one of the most sacred geometric forms in art and nature.

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