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An iridescent ammonite from Alberta, Canada, with dominant blue and green shimmering tones, gemmologically classified as ammolite. The aragonite shell shimmers like a gemstone with fine wave-iris effects.
inkl. MwSt., zzgl. Versand
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An iridescent ammonite from Alberta, Canada, with dominant blue and green shimmering tones, gemmologically classified as ammolite. The aragonite shell shimmers like a gemstone with fine wave-iris effects.
Ammolite is, alongside pearl and amber, the third biogenic gemstone variety in mineralogy. It originates from the aragonite shell of Upper Cretaceous ammonites of the genus Placenticeras. These were deposited approximately 75 million years ago in the sediments of the Bearpaw Formation in Alberta.
The blue and green color fields of this piece indicate particularly well-preserved aragonite lamellae that refract light in the corresponding wavelengths. Blue-green ammolite varieties are in the premium class and particularly prized gemmologically.
The deposit on the Saint Mary River is under strict control of the Blackfeet indigenous people, whose land covers large parts of the occurrence. Mining is limited to a few certified operators, which characterizes the finite nature of the material.
A collector's item with paleontological depth and gemmological classification, suitable for display in a showcase alongside other biogenic gemstones.
Unsere Fossilien stammen aus Fundstätten, mit denen wir seit Jahren zusammenarbeiten. Jedes Stück wird behutsam geborgen und in Handarbeit präpariert.
Die Menschen, die diese Arbeit machen, werden fair entlohnt. Wo ein Fund herkommt und wie er ans Tageslicht kam, lässt sich für jedes Stück nachvollziehen.
Wie das vor Ort aussieht, zeigen wir in einem Film, der bei uns im Museum läuft.
Sensitive. Protect from impact, acid, and prolonged UV radiation. Polished pieces are usually stabilized with a synthetic resin layer, yet no water bath.
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