Aragonite Crystals Ankylosaurus have been found in the

have been found in the Sterkfontein area

These marine sediments date back to the Mississippian Age (Late Osagean - 340 million years ago) when crinoids reached their peak

Our research team has discovered several dozen pieces of an Ankylosaurus

Time: Middle Eocene

Only in oblique light do the Haarlem specimen's feather imprints show up at all

Aragonite Crystals Ankylosaurus have been found in theNOTE THAT YOU WILL RECEIVE A SPECIMEN OF EQUAL OR BETTER QUALITY THAN THE ONE SHOWN Aragonite is a carbonate mineral, one of the two common, naturally occurring polymorphs of calcium carbonate, CaCO3. The other polymorph is the mineral calcite. Aragonite's crystal lattice differs from that of calcite, resulting in a different crystal shape, an orthorhombic system with acicular crystals. Repeated twinning results in pseudo hexagonal forms. Aragonite