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Can't figure out what this stone is!

Posted by amanda  
Can't figure out what this stone is!
August 19, 2012 06:50PM
Could anyone identify this from these pictures? Any help is greatly appreciated!

avatar Re: Can't figure out what this stone is!
August 19, 2012 07:57PM
Could be many things, blue stuff can be from chalcedony to turquoise and black material from a metallic oxide to a dark silicate.
Please give some data: size, origin, hardness...

avatar Re: Can't figure out what this stone is!
August 21, 2012 01:50AM
Jose is correct Amanda; it could be many things, and ID from photos is one of the hardest things to do. My initial thought is blue chalcedony, but without more information about the specimen, it is purely a guess.

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