Friday, May 27, 2011

Gemstone of the Week: Petoskey Stone

("Valdete" by Handmaden Designs)

Alright, while Petoskey Stone isn't technically a gemstone, but actually a fossil it is still a gorgeous rock and I thought I'd include it anyway.  Petoskey Stone is a fossilized coral that is found only on the beaches of Michigan.  It has a beautiful hexagonal turtle-shell like pattern.  Their value ranges greatly so is very difficult to give an idea as too what they are worth.  As with any stone, it depends on their size, quality, and colour. Some Petoskey stones are so pale you can barely see the stones pattern, these are among the rarest Petosky stones found as they don't have any impurities.  Other Petoskey stones have been found with black centers, this is due to oil impurities in the stone. 

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