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Unmanned Spaceflight.com _ MRO 2005 _ CRISM finds opal

Posted by: marsbug Oct 29 2008, 11:36 AM

http://www.sciencedaily.com/releases/2008/10/081028163653.htm, there may be some expensive necklaces come from this discovery...

Posted by: djellison Oct 29 2008, 11:51 AM

Thread title wrong ( you said HiRISE, not CRISM - I've edited it for you).

Wrong forum ( Mars Express for some reason, not MRO - I've moved it for you)

Posted by: marsbug Oct 29 2008, 12:07 PM

My bad Doug, it was very rushed. Thanks for fixing it for me!

Posted by: tty Oct 29 2008, 07:53 PM

Opal is after all just a variety of hydrated silica and most of it is definitely not gem quality. It is even secreted by microorganisms and grass (not that I suggest that this is the origin of Martian opal).