Chiastolite Cabochon

HIGHLY POLISHED

SEMI HIGHDOME

TREATMENT - NONE

READY TO BE SET IN JEWELLERY

Science & Origin of Chiastolite

Chiastolite, also known as Cross Stone, is a very rare variety of Andalusite, an aluminum nesosilicate mineral with crossed shaped inclusions of black Graphite and Carbon. The cross can only be seen when this mineral is sliced, though it does run throughout the entire stone. This mineral was first mentioned in a 1648 book, De Gemmis et Lapidibus, but was officially recorded in 1754 by José Torrubia. Chiastolite only has three active localities which include central Massachusetts in the United States, Asturias, Spain, and the Bimbowrie Conservation Park in Olary Province, South Australia, Australia.

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