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It is conserved in its natural matrix of sandstone
This is a complete vertebra of this very rare giant fish of filter feeder diet
The matrix and the cephalon have small glued and restored (filled) fractures
External nostrils at the posterior end of its snout and an internal naris in its pterygoid indicated a habit of hunting while swimming with the top of the head above the water
able to swim as well as walk on land
04991 - Well Crystallized Acicular Brochantite with Quartz from South Morocco Morocco It is conserved in itsBrochantite is a sulfate mineral, one of a number of cupric sulfates. Its chemical formula is Cu4SO4(OH)6. Formed in arid climates or in rapidly oxidizing copper sulfide deposits. Crystals of brochantite can range from emerald green to black green to blue green, and can be acicular or prismatic. Brochantite is often associated with minerals such as malachite, azurite, and chrysocolla, and may form pseudomorphs with these minerals. Brochantite is a
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