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Post by rockjunquie on Sept 15, 2017 17:21:37 GMT -5
A few more from vegasjames's box. There's a ton of variety in there. I feel like I am getting addicted to cutting them just to see what's in them. This is, I assume, green dioptase. Nice weight and shine. I love the golden spiderwebbing. This one is far more attractive in person. I'm taking pictures under halogen which apparently washed out the chrysocolla lightning. The matrix is very light colored dolomite. This has a little of everything including chrysocolla and limonite. (I'm learning ) Very nice in person with bright color. And, last but not least - a large cab (57mm) of beautiful chrysocolla from a box I got from Rockhobbit. She was kind enough to put together a box of goodies for my trim saw. This was really hard and took a fabulous polish. I'm thinking this one is a keeper or a pendant. I worried about undercutting in the brown, but it didn't. It was all hard. Thanks for looking!
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Post by fernwood on Sept 15, 2017 17:49:31 GMT -5
Love the last one. All are beautiful, but that one........
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Post by orrum on Sept 15, 2017 18:06:03 GMT -5
Awesome!!! I lub dem blu n green rocks!
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,455
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Post by Sabre52 on Sept 15, 2017 18:58:15 GMT -5
Wow that last one is fantastic with all those crystals included. Are the crystals chrysocolla or malachite?....Mel
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Post by rockjunquie on Sept 15, 2017 19:12:25 GMT -5
Sabre52, they look like chrysocolla to me. The rough did, too.
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Post by Psycho on Sept 15, 2017 20:12:01 GMT -5
Vegasjames has some great materials, I go a box of chrysocolla that I am dying to get some more slabs cut and cabs made!
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Post by vegasjames on Sept 15, 2017 21:07:10 GMT -5
The lighter green in the first cab would be malachite. The darker, emerald green, is dioptase.
The third cab looks like a mix of malachite, dioptase, limonite, dolomite, The bright blue could be either chrysocolla or rosasite. Both are common in the area.
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Post by rockjunquie on Sept 16, 2017 14:51:52 GMT -5
The lighter green in the first cab would be malachite. The darker, emerald green, is dioptase. The third cab looks like a mix of malachite, dioptase, limonite, dolomite, The bright blue could be either chrysocolla or rosasite. Both are common in the area. Just so as I don't get confused... in the first cab, the veining looks yellow to me. Are you saying that it is malachite? I've not seen it that color. It's very pretty. I am hoping to come across some bigger pieces for a bigger cab. That was a test piece. I have never even heard of rosasite! Thanks- good to know.
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Post by drocknut on Sept 16, 2017 15:31:29 GMT -5
Nice cabs Tela. That last one is killer but the others ain't bad either.
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Post by vegasjames on Sept 16, 2017 18:14:00 GMT -5
The lighter green in the first cab would be malachite. The darker, emerald green, is dioptase. The third cab looks like a mix of malachite, dioptase, limonite, dolomite, The bright blue could be either chrysocolla or rosasite. Both are common in the area. Just so as I don't get confused... in the first cab, the veining looks yellow to me. Are you saying that it is malachite? I've not seen it that color. It's very pretty. I am hoping to come across some bigger pieces for a bigger cab. That was a test piece. I have never even heard of rosasite! Thanks- good to know. No, not the yellow. Not sure what the yellow is. Could be iron stained silica. There are two shades of green in the stone. A kind of forest green, which is malachite, and a darker emerald green that would be dioptase. Here is an example of rosasite, which is a copper zinc carbonate hydroxide: www.dakotamatrix.com/mineral-galleries/search?name=Rosasite#!prettyPhoto
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Post by rockjunquie on Sept 16, 2017 18:16:43 GMT -5
Just so as I don't get confused... in the first cab, the veining looks yellow to me. Are you saying that it is malachite? I've not seen it that color. It's very pretty. I am hoping to come across some bigger pieces for a bigger cab. That was a test piece. I have never even heard of rosasite! Thanks- good to know. No, not the yellow. Not sure what the yellow is. Could be iron stained silica. There are two shades of green in the stone. A kind of forest green, which is malachite, and a darker emerald green that would be dioptase. Here is an example of rosasite, which is a copper zinc carbonate hydroxide: www.dakotamatrix.com/mineral-galleries/search?name=Rosasite#!prettyPhoto OK, got it. Thanks. How often do you think that rosasite is confused for chrysocolla? Looking at rosasite, chrysocolla and some turquoise would have me scratching my head. eta just did an image search of rosasite. Very pretty!!
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Post by vegasjames on Sept 16, 2017 19:38:42 GMT -5
No, not the yellow. Not sure what the yellow is. Could be iron stained silica. There are two shades of green in the stone. A kind of forest green, which is malachite, and a darker emerald green that would be dioptase. Here is an example of rosasite, which is a copper zinc carbonate hydroxide: www.dakotamatrix.com/mineral-galleries/search?name=Rosasite#!prettyPhoto OK, got it. Thanks. How often do you think that rosasite is confused for chrysocolla? Looking at rosasite, chrysocolla and some turquoise would have me scratching my head. eta just did an image search of rosasite. Very pretty!! I think a lot of things get confused for chrysocolla. One of the problems is that chrysocolla is actually a specific mineral, copper silicate, but is also gets used as a generalized term for any unidentified copper ores. So people have learned to associate a lot of copper ores including rosasite and turquoise as chrysocolla. And many of these can occur together further adding to the confusion. For example in the cabs I showed you from the other mine both chrysocolla and rosasite are a few of the known copper minerals from the same mine. Turquoise can also be found with chrysocolla and since turquoise can come in about 70 shades of color and run from chalky to glassy a lot of people can easily confuse turquoise for chrysocolla just based on look and feel. I have shown some people raw turquoise and they did not even think it was turquoise because it did not have the hard plastic feel of the lower grade epoxy stabilized stuff they are so used to be exposed to. So there is a lot of guessing going on even among dealers because they cannot see the individual constituents of a rock like something like an atomic absorption spectrometer can. And they do not test things like chemistry of specific gravity, especially with each stone. And again look-a-like minerals can occur together.
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Post by pghram on Sept 18, 2017 16:38:12 GMT -5
Great coppery delicious-ness.
Peace, Rich
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grizman
freely admits to licking rocks
Member since July 2011
Posts: 878
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Post by grizman on Sept 18, 2017 21:50:44 GMT -5
I too, love the 3rd one. Wonderful color contrasts.
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Post by accidentalrockhound on Sept 18, 2017 23:42:13 GMT -5
rockjunquie, nice as always i think your out cabbing everyone 5 to 1 right know. Like a squirrel packing'um away for winter.
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Post by vegasjames on Sept 19, 2017 4:44:49 GMT -5
I grabbed some small random pieces of the same mine material out of the pile and free form cabbed them. 20170907_164710-1 by James Sloane, on Flickr
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Post by rockjunquie on Sept 19, 2017 8:29:35 GMT -5
I grabbed some small random pieces of the same mine material out of the pile and free form cabbed them. 20170907_164710-1 by James Sloane, on Flickr Yes! I have some like that, too. I love those greens. Lots of nice contrast and interest, too.
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