Brazil and the United States
is an extremely complex borosilicate that occurs in more
than 100 colors. It is hard and durable and very well suited
for jewelry. It is a pyroelectric mineral, meaning that
when warmed, it attracts dust and other lightweight particles.
It wasn't introduced into Europe until the early 1700's,
when it was imported from the east. Shortly thereafter it
was declared a stone of the Muses, inspiring and enriching
the creative processes. It was a talisman for artists, actors
and writers. Today,it is mined extensively in South America,
East Africa and in Southern California.