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Prionocheilus obtusus
Acanthopyge granulosa
The majority of collected material occurs as 2-5 cm
This is a complete vertebra of this very rare giant fish of filter feeder diet
Impressive natural association of 3 huge vertebrae of this species of Elasmosaurus in its phosphatic matrix
20914 - Beautiful Red Vanadinite Crystals on Manganese Oxide Mibladen Mining District, Morocco Goniatites Prionocheilus obtususVanadinite is a mineral belonging to the apatite group of phosphates, with the chemical formula Pb5(VO4)3Cl. It is one of the main industrial ores of the metal vanadium and a minor source of lead. A dense, brittle mineral, it is usually found in the form of red hexagonal crystals. It is an uncommon mineral, formed by the oxidation of lead ore deposits such as galena. First discovered in 1801 in Mexico, vanadinite deposits have since been unearthed in
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