S343 - Top Huge Quartz Matrix coated with Azurite Crystals + Sulfides (Pyrite & Chalcopyrite) Mosasaur bones and in a minor proportion

and in a minor proportion as POP (porphyritic olivine and pyroxene)

surviving the K-Pg extinction event

Acheroraptor likely preyed on smaller animals

Item number: 143937927336

Beautiful tooth of a cartilaginous sawfish

S343 - Top Huge Quartz Matrix coated with Azurite Crystals + Sulfides (Pyrite & Chalcopyrite) Mosasaur bones and in a minor proportionThis huge specimen mainly displays incredibly blue azurite along with aggregations of vivid shining sulfides coating a quartz matriz. Most of this specimens azurite are formed in fibrous, fan like projections. The contrast of the azurite surrounding the quartz matriz together with the Pyrite and Chalcopyrite sulfides, give the specimen a truly unique and colorful appearance. The size its Museum Grade. Azurite and also malachite are known to form in