elementary
fully equipped rock polisher
Member since February 2006
Posts: 1,077
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Post by elementary on Dec 9, 2012 22:13:55 GMT -5
When going through my shelves today I found a crystal that I inherited from my Grandparents. I believe it is from Colorado as my family had lived there and other specimens are listed as being from there. I'm an agate guy, so my guess is pure guesswork: Beryl? Amazonite? It has a slight green tint. I know the shot is not the best. Let me know if you need a better angle. Thanks. Lowell
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herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Dec 10, 2012 12:54:22 GMT -5
Hi Lowell, can you get a photo of it wet? It just kind of looks chalky in this photo.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Dec 10, 2012 13:32:39 GMT -5
The color does look like some Rocky Mt. beryl, but it doesn't look like a complete xtl, so cannot be sure. If you can rig up a specific gravity setup with your scale, you'll have more solid evidence for what it is (a scratch test using some known stones like quartz would also narrow down the possibilities—just don't press very hard when scratching).
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,456
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Post by Sabre52 on Dec 13, 2012 16:25:40 GMT -5
Does look a bit like a feldspar crystal to me so I would guess microcline feldspar which if blue or blue greenish would be amazonite....Mel
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Post by kap on Dec 13, 2012 17:03:28 GMT -5
I agree with Mel it looks like amazonite. to me. Keith
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Post by rockpickerforever on Dec 13, 2012 18:03:03 GMT -5
Feldspar was my first guess, too. And it is found in Colorado, widely spread through the Pikes Peak batholith. Although the Colorado amazonite images shown online are much more colorful. Jean
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