A striking example of natural artistry, this pyritized ammonite from Russia displays the classic spiral form of these ancient marine mollusks, preserved through the replacement of its original shell with gleaming pyrite. The metallic luster enhances the ribbed coil pattern, while the fossil’s base shows remnants of the surrounding matrix. Ammonites lived during the Mesozoic era and are prized both for their scientific importance and their aesthetic appeal. This specimen captures the fascinating process of mineralization, where organic material is transformed into enduring stone and metal over millions of years.
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11.484 grams / 29.5 x 20.1 x 15.7 mm
Estimate: $215 - $225
