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The largest star sapphire in the world is the Star of Adam
Above: Copper Crystal specimens hanging out on a Permian sedimentary slab formed around the same time (geologically speaking)
it can oxidize during the cooling process to form a thin layer of film
New York: Nova Science Publishers
Dimetrodon Spine Sail Fragments Size:Classic Riker Box Specimen The largest star sapphire inWith a fearsome jaw and reptilian appearance, Dimetrodon is often mistaken for a dinosaur. However, this family of Early Permian Period species falls into a disparate taxonomic clade known as synapsids which includes mammals. This specimen is a fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail is unknown, though speculation ranges from thermoregulation and locomotion.
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