Pyritized ammonite

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Pyritized ammonite

The pyritized ammonite from Ulyanovsk, in Russia's Volga region, is an exceptional fossil dating back approximately 150 million years, from the Late Jurassic seas. During fossilization, the ammonite's shell was gradually replaced by pyrite, an iron sulfide with metallic golden reflections. Some specimens are also associated with magnificent crystals of yellow calcite (simbircite), creating a remarkable contrast between the metallic luster of the pyrite and the warm transparency of the calcite.
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ammonite pyritisee am_p150 taille cabochon 49x24x8 mm
Pyritized ammonite, AM_P126, cabochon cut, 48x26x6 mm
ammonite pyritisee am_p145 taille cabochon 42x27x10 mm
Pyritized ammonite, AM_P145, cabochon cut, 42x27x10 mm
ammonite pyritisee am_p150 taille cabochon 49x24x8 mm 1
Pyritized ammonite, AM_P150, cabochon cut, 49x24x8 mm
ammonite pyritisee am_p153 taille cabochon 38x31x7 mm
Pyritized ammonite, AM_P153, cabochon cut, 38x31x7 mm
ammonite pyritisee am_p155 taille cabochon 34x20x8 mm
Pyritized ammonite, AM_P155, cabochon cut, 34x20x8 mm
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ammonite pyritisee am_p174 taille cabochon 44x44x7 mm
Pyritized ammonite, AM_P174, cabochon cut, 44x44x7 mm
Ammonite pyritisée, AM_P178, taille cabochon, 55x34x10 mm
Pyritized ammonite, AM_P178, cabochon cut, 55x34x10 mm
ammonite pyritisee am_p179 taille cabochon 48x38x7 mm
Pyritized ammonite, AM_P179, cabochon cut, 48x38x7 mm
ammonite pyritisee am_p182 taille cabochon 41x28x8 mm
Pyritized ammonite, AM_P182, cabochon cut, 41x28x8 mm
Ammonite pyritisée, AM_P195, taille cabochon, 52x32x8 mm
Pyritized ammonite, AM_P195, cabochon cut, 52x32x8 mm
ammonite pyritisee am_p205 taille cabochon 45x27x7 mm
Pyritized ammonite, AM_P205, cabochon cut, 45x27x7 mm
ammonite pyritisee am_p214 taille cabochon 29x23x9 mm
Pyritized ammonite, AM_P214, cabochon cut, 29x23x9 mm
ammonite pyritisee am_p242 taille cabochon 39x37x8 mm
Pyritized ammonite, AM_P242, cabochon cut, 39x37x8 mm
ammonite pyritisee am_p261 taille cabochon 37x19x7 mm
Pyritized ammonite, AM_P261, cabochon cut, 37x19x7 mm
ammonite pyritisee am_p264 taille cabochon 43x21x9 mm
Pyritized ammonite, AM_P264, cabochon cut, 43x21x9 mm
ammonite pyritisee am_p269 taille cabochon 42x29x8 mm
Pyritized ammonite, AM_P269, cabochon cut, 42x29x8 mm
ammonite pyritisee am_p280 taille cabochon 34x28x7 mm
Pyritized ammonite, AM_P280, cabochon cut, 34x28x7 mm
ammonite pyritisee am_p292 taille cabochon 47x24x7 mm
Pyritized ammonite, AM_P292, cabochon cut, 47x24x7 mm
ammonite pyritisee am_p298 taille cabochon 37x33x7 mm
Pyritized ammonite, AM_P298, cabochon cut, 37x33x7 mm
ammonite pyritisee am_p302 taille cabochon 47x28x8 mm
Pyritized ammonite, AM_P302, cabochon cut, 47x28x8 mm
ammonite pyritisee taille cabochon 45x24x9 mm 15 8g am_p072
ammonite pyritisee taille cabochon 45x24x9 mm 15 8g am_p072
Pyritized ammonite, tAM_P072, cabochon cut, 45x24x9 mm; 15.8g;
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