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Post by puppie96 on Sept 15, 2007 17:11:59 GMT -5
This is supposed to be chrysocolla -- all I know is it is really a beautiful rock. That deep blue that's almost purple looks like azurite maybe? Top and bottom views: This one is polished and other than splash was photographed dry. I thought this was a wood, just unusual. The vendor agreed it looked like wood to him, and was sold to him as wood, but that others have told him it isn't. It's a great looking rock, whatever it is.
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darrad
fully equipped rock polisher
Member since September 2006
Posts: 1,636
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Post by darrad on Sept 15, 2007 18:56:30 GMT -5
The blue/green/purple one looks like it has veins of malachite in it as well. I am probably wrong but it sure is nice!
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Post by puppie96 on Sept 16, 2007 10:31:25 GMT -5
I've been hoping for some commentary. This is such a big piece I was surprised to get it for a price -- I thought this stuff would have been more expensive. I have no idea what to do with something like this so I guess it will be a display rock unless/until I get more experience.
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SteveHolmes
fully equipped rock polisher
Member since July 2009
Posts: 1,900
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Post by SteveHolmes on Sept 16, 2007 10:51:31 GMT -5
Wow...those are gorgeous Pup. I really like the blue and green one. I'd say the purplish in it is Azurite, green is Malachite and the turqouise color is probably Chrysocolla. Don't what the bottom one is, but I don't think it's wood. Nice stuff none-the-less! Steve
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Post by sandsman1 on Sept 16, 2007 12:39:10 GMT -5
your gonna get some real nice slices and cabs from that first one pup thats a great lookin rock
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Post by puppie96 on Sept 16, 2007 13:01:35 GMT -5
The first rock is really pretty. As you can see, it is vuggy and irregular. I wouldn't know how to touch it with a saw, and also, isn't the blue hard to get to polish? I'm clueless about how to work with it. BTW I wondered whether it had some kind of stabilizer on it or something, but the old timer who sold it said this is how it came out of the ground.
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erbojones
has rocks in the head
Member since October 2006
Posts: 659
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Post by erbojones on Sept 16, 2007 13:59:38 GMT -5
Definitely think the first one has malachite involved - I thought Azurite was a more vivid Royal blue?? Not sure though - the second one is very interesting almost breccia-like in its looks but I don't really know what I'm talking about so I'll just skulk off again.......................:-)
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stonesnbones
spending too much on rocks
Member since September 2007
Posts: 255
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Post by stonesnbones on Sept 16, 2007 15:57:49 GMT -5
Opinions are like noses everyone has one ;D so here is mine.First of all it is a copper morph.You appear to have Malachite,chrysocolla,azurite and cuprite all rolled into one.The viens and vugs being the chrysocolla.You have what appear to be hard and soft areas......possibly hard,soft and crumble area.This means your stones could undercut and possibly orange peel until there is no tommorow.That being said,if it were mine I would make the first slice right down the middle.Using the first photo,it is triangular in shape.I would cut from the tirangle bottom to the tip.Frankly it is possible that there is nothing but matrix inside.If thats the case it will show you what areas you can procede on.No matrix it will allow you to take slabs and still have a display specimen if desired.I personally feel your stone is better as a polished specimen than to try to grab cabs out of it.
It is a humdinger either way.
Brad
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Post by puppie96 on Sept 17, 2007 1:50:34 GMT -5
This is really great feedback from you guys. Brad, I totally agree about the composition of the rock; it looks like hard & soft areas & possible crumble. I wondered whether it might be all matrix inside but I have no experience with these. When I've found small pieces of malachite they have always crumbled away on me. I will have to think a long time before cutting into it at all because I agree that it is lovely as a stand-alone. You said "polished" specimen; it isn't polished now and I wouldn't know how???
Erbojones, I had the same thought that this looked like some kind of breccia, though I don't exactly think I'm much of an authority either! Isn't brecciated wood possible, though? If it were already petrified or partially so, and there was some kind of force that caused brecciation (doesn't it result from major forces like earthquakes, volcanoes, meteor impact), the petrified wood could break apart and later be resealed. On that basis I thought not to rule out wood. The center cavity is an interesting feature, too. Just looking at it again, it is hard for me to believe it isn't some kind of life form.
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