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Deb in Seattle
 #1 

Hi, All. I recently returned from a trip to La Trinidad, Queretaro State, MX. I purchased a bit larger than softball sized rock which has quite a few fire opals in the matrix. I live in MX during the winter and will be returning to the US at the end of April, and would like to have the rock inspected to see if there is enough material to have a few opals cut and polished. I am enclosing a photo via Imgur of the specimen. It is from the Carbonea Mine outside of La Trinidad in Tesquisquiapan. 

Comments and concerns appreciated! I will be bringing the specimen back with me to the US.

Regards,

Deb in Puerto Vallarta, MX

http://i.imgur.com/eholFXg.jpg

Bob Johannes
 #2 
One thing that will need to be done prior to cutting, is allow the stone to dry out.  Mexican Opals have the unfortunate tendency to crack as they dry out.  The only way to know if the opals in your stone will do that, is to allow it to dry out.

It could be cut before drying, but the stone cut will then dry out and may or may not crack.  It would be unfortunate to cut a nice stone and then it drys out and cracks.

Bob Johannes
The Amethyst Rose
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