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Post by stardiamond on Jul 31, 2015 13:54:41 GMT -5
I found the piece in one of my boxes. It was a heel and all broken up except the face which was boring. I must have got it cheap years ago. I took a cut to get it somewhat even and then another which broke apart. On the third cut the rock came off the board. Blade wasn't damaged and the second cut almost completed to the fracture point. Slab at the bottom. I can probably get a few cabs.
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Post by rockpickerforever on Jul 31, 2015 14:03:44 GMT -5
IDK, but from the photo, I think it could be Pietersite?
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Post by stardiamond on Jul 31, 2015 14:17:12 GMT -5
I thought of that also. I have cut very little tiger eye or Pietersite. You could be right. Most of the piece was not very chatoyant.
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Don
Cave Dweller
He wants you too, Malachi.
Member since December 2009
Posts: 2,616
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Post by Don on Jul 31, 2015 14:36:51 GMT -5
Looks like Pietersite to me.
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Post by orrum on Jul 31, 2015 16:40:32 GMT -5
Chatoyant rocks require study, observation of others cutting technique, prayer, luck, perhaps stump hole likker, significant money to buy more so as to adequately study slabbing orientation.....
I.E. if that's Pietersite you probably cut it wrong. I have taken others saw scrap Chatoyant rocks that were too small to slab and used the 80 grinding wheel to change the face angle in order to get the flash to show well.
Remember with Chotoyant stones a pendant hang versus a ring or bracelet lying flat requires different orientation.
OK that sounds all together too knowledgeable and professional, almost like I know what I am talking about....let's dress that down a little.. .
Aww pardner when cutting them flashy rocks ya gotta get that rock to talk to you. It's easy. Go outside, eat three sprigs of grass, pee on the neighbors bushes, pass gas, say man that's a relief and go back inside. Then hit the stump hole likker another sip, throw the dang rock in the vise oriented to make clamping easiest and cut it, whack it, slab that bad boy!!! It will work I promise, just keep sipping outa that quart mason jar and the world will SHINE!!! Get it SHINE, you know made in the moon shine? Come on people white lightning, Tennessee drain cleaner, stump hole likker, Alabama peach brandy, corn squezzins, silo juice, radiator blind eye, MOONSHINE!!!
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Don
Cave Dweller
He wants you too, Malachi.
Member since December 2009
Posts: 2,616
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Post by Don on Jul 31, 2015 16:43:34 GMT -5
Chatoyant rocks require study, observation of others cutting technique, prayer, luck, perhaps stump hole likker, significant money to buy more so as to adequately study slabbing orientation..... I.E. if that's Pietersite you probably cut it wrong. I have taken others saw scrap Chatoyant rocks that were too small to slab and used the 80 grinding wheel to change the face angle in order to get the flash to show well. Remember with Chotoyant stones a pendant hang versus a ring or bracelet lying flat requires different orientation. OK that sounds all together too knowledgeable and professional, almost like I know what I am talking about....let's dress that down a little.. . Aww pardner when cutting them flashy rocks ya gotta get that rock to talk to you. It's easy. Go outside, eat three sprigs of grass, pee on the neighbors bushes, pass gas, say man that's a relief and go back inside. Then hit the stump hole likker another sip, throw the dang rock in the vise oriented to make clamping easiest and cut it, whack it, slab that bad boy!!! It will work I promise, just keep sipping outa that quart mason jar and the world will SHINE!!! Get it SHINE, you know made in the moon shine? Come on people white lightning, Tennessee drain cleaner, stump hole likker, Alabama peach brandy, corn squezzins, silo juice, radiator blind eye, MOONSHINE!!! Please dress down all of your future posts. Also, I would like to subscribe to your newsletter.
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Post by orrum on Jul 31, 2015 16:45:59 GMT -5
Thanks Don. The newsletter is oneleggedcowboy.wordpress.com
We discuss important stuff there....
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Post by stardiamond on Jul 31, 2015 17:34:53 GMT -5
The orientation was predetermined by who cut it first. Cutting it a 90 degrees one have produced 1/2 or less strips. I can still do that with the piece in the upper left and that is less than 1/2 " wide. I can see the chatoyancy there on that edge.
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Post by MrP on Jul 31, 2015 17:48:35 GMT -5
I think it is Hawk's Eye with some matrix that is cut in the wrong direction, unless I am wrong..................MrP
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Post by stardiamond on Jul 31, 2015 18:10:08 GMT -5
I'm still thinking it is Pietersite. Pietersite, Boulder opal, Howardite, quality Morrisonite, Bruneau and others are too expensive more me to buy to cab. I have some good Morrisonite that I got a long time ago. I will occasionally gamble on some flawed material if I can get a real bargain. Here's a Pietersite slab I picked up. Not great.
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gemfeller
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Member since June 2011
Posts: 4,027
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Post by gemfeller on Jul 31, 2015 18:37:00 GMT -5
Yep, Pietersite. Although the saw angle's off you'll still get some great cabs. Nice find.
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rockroller
spending too much on rocks
Be excellent to each other.
Member since October 2013
Posts: 359
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Post by rockroller on Jul 31, 2015 21:58:36 GMT -5
Pietersite is blue tiger's eye is what I have been told.
~Roland
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gemfeller
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Member since June 2011
Posts: 4,027
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Post by gemfeller on Jul 31, 2015 23:43:27 GMT -5
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Post by pghram on Aug 1, 2015 10:49:22 GMT -5
I agree that you can still get some nice cabs from those slabs.
Rich
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Post by woodman on Aug 1, 2015 11:24:32 GMT -5
I have these two chunks of what I have always thought of as tiger eye, they are both about 2 1/2 lbs. Now I am not sure what they are. Help!
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Post by orrum on Aug 1, 2015 13:22:47 GMT -5
Tiger eye. Cut them by study outside.
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Post by stardiamond on Aug 1, 2015 13:45:46 GMT -5
I defer to orrum as master of chatoyancy. It looks like they need to be cut at another angle.
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gemfeller
Cave Dweller
Member since June 2011
Posts: 4,027
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Post by gemfeller on Aug 1, 2015 15:10:02 GMT -5
They're tiger's-eye from South Africa. It can have natural color variations such as streaks of blue, red and even green (variegated Tiger's=eye); or occur in single hues, most commonly yellow-brown or blue. Most red tiger's-eye is yellow-brown material that's been heated to change its color but natural red material also occurs. The long-fibered pure blue material is called Hawks-Eye. Pietersite differs in both source and structure. It's presently found mainly in Namibia, not South Africa; and in China. As I posted previously it usually has a brecciated structure: a jumble of pieces that appear to have been shattered somehow, then rejoined in a patchwork of pieces, often of different colors. Look at the image link I posted and I think you'll see the difference. This is a yellow-blue Tiger's-eye cab from South Africa (not a great one!) for comparison:
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Post by pghram on Aug 1, 2015 21:53:51 GMT -5
Woodman, I would call that tiger eye, Pietersite tends to be brecciated, but I'm not an expert.
Rich
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rockroller
spending too much on rocks
Be excellent to each other.
Member since October 2013
Posts: 359
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Post by rockroller on Aug 2, 2015 10:16:34 GMT -5
I have these two chunks of what I have always thought of as tiger eye, they are both about 2 1/2 lbs. Now I am not sure what they are. Help!
Looks like some of the wood I have picked up in Texas. ~Roland
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