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Post by toiv0 on Feb 1, 2016 21:10:22 GMT -5
In the For Sale section there has been some Montanas, I found this one laying in a drawer. The diamonds are actually white Here is a piece of black jade and I think hemitite from California
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723
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Post by Fossilman on Feb 1, 2016 21:27:23 GMT -5
That agate is killer!!!!!!!!!!!!
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Post by 150FromFundy on Feb 2, 2016 16:48:28 GMT -5
The Montana agate looks typical with the exception of those diamond-shaped crystals which I have never seen in a Montana before. Must learn more.
Darryl.
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Post by rockjunquie on Feb 2, 2016 17:12:51 GMT -5
That MT is radical as hell!
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Post by toiv0 on Feb 2, 2016 20:05:12 GMT -5
The Montana agate looks typical with the exception of those diamond-shaped crystals which I have never seen in a Montana before. Must learn more. Darryl. I have no idea what the diamond shapes are, I guess I could scratch one to see the hardness. I got this from a friend.
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micellular
has rocks in the head
Rock fever is curable with more rocks.
Member since September 2015
Posts: 640
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Post by micellular on Feb 2, 2016 21:04:27 GMT -5
Whoa...reminds me of the cross-sections of Turkish Stick agates.
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Post by jakesrocks on Feb 2, 2016 21:47:56 GMT -5
Just a guess. I'm thinking the diamonds were at one time fluorite crystals which dissolved as the agate was forming. The fluorite was replaced with clear agate. The included crystals would be a pseudomorph, agate after fluorite. I wouldn't go any further with that agate until I found out just how rare it is. You may have a museum piece there.
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70karmann
starting to spend too much on rocks
Member since February 2011
Posts: 190
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Post by 70karmann on Feb 3, 2016 23:44:34 GMT -5
I have a similar Montana agate but with only two diamonds in white. I will try and post pictures.
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Post by Toad on Feb 4, 2016 6:17:45 GMT -5
Wild, as with many of the others, I've never seen the like...
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Feb 4, 2016 14:38:26 GMT -5
Im gonna agree with don. Agate after flourite or flourite itself. Hard to believe it could actually be carbon.
Magnetite/jade. The magnetite will gold plate making an awesome cab. Google it
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Post by Pat on Feb 4, 2016 14:50:39 GMT -5
Hmmm, think I'll clean out a few drawers! : )
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