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Neltneriidae and Holmiidae (Trilobita) from Morocco and the Problem of Early Cambrian Intercontinental Correlation
although their absolute chemical composition is dependent on the physical and chemical properties of the usually granular-crystalline material providing an electrically and thermally conductive dissipation network for lightning-facilitated energy transfer
Positive /Negative specimen
WEIGHT: 312
J05 - Astonishing Dendritic Allargentum Silver after Dyscrasite in Matrix Hybodus Neltneriidae and Holmiidae (Trilobita) fromAllargentum Silver after Dyscrasite" refers to a mineral specimen from the Bouismas Mine in Bou Azer, Morocco, where native silver and allargentum (a silver antimony mineral) have replaced the original dyscrasite crystals. These specimens are prized for their aesthetic, dendritic formations and lustrous, dark gray to silver colors. Location: The specimens come from the Bouismas Mine in the Bou Azzer district of Morocco. This is part of the Draa
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US$ 137.50