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Rubellite to Mica pseudo

Posted by Jacob Zonderman  
Jacob Zonderman July 31, 2012 06:31PM
This was part of a large rock and mineral collection that was given to me by a lady I do a lot of yard work for. It came unlabelled but I am pretty certain is if rubellite pseudomorphing into mica, presumably from Brazil (that is the most well known locality for these that I know of). It does have some nice gemmy portions to it. I am uncertain of terminations due to the pseudomorphing. If anyone can be more exact on locality to go along with a potential value that would be of great help. Thanks.

Dimensions are approx--5 x 3 x 2 cm
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Rock Currier August 01, 2012 01:54PM
I think the value of your tourmaline would be less than 100 dollars.

Rock Currier
Crystals not pistols.
Jacob Zonderman August 01, 2012 02:16PM
Thats still more than I expected. Thanks.
Rob Woodside August 01, 2012 06:43PM
Rock you are too kind. Without a locality, a lot less than $10.
Tim Jokela Jr August 07, 2012 02:30PM
I'd want to examine it for cutting rough first. Good facet grade pink tourmaline is valuable. Facet grade meaning decent enough sized areas within in that are colorful, transparent, and free of flaws. Any decent facetor could tell you if it's cutting quality in a minute.

If it's at all a decent, attractive pink color, on a nice white background,I'd label it tourmaline from Brazil and put $20 on it, chicks love pink.
Steve Hardinger August 07, 2012 04:48PM
I'm not sure its a pseudomorph. Instead it looks to me that the tourmaline and muscovite are just intergrown. The tourmaline-to-mica pseudomorphs that I have collected in the Pala District in southern California have all had very fine-grained to massive mica. In your case the mice crystal size is too large.
Tim Jokela Jr August 08, 2012 08:35PM
Good point Steve. Prolly not a pseudo. Also not rubellite, of course, which isn't a mineral, but elbaite.
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