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Chatoyant Stone

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Author Topic: Chatoyant Stone  (Read 12646 times)
ScarlettoSara
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« Reply #15 on: October 02, 2009, 03:36:48 pm »

MarraMumba - Piece de Resistance:)
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ScarlettoSara
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« Reply #16 on: October 02, 2009, 03:39:21 pm »

Bronzite
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ScarlettoSara
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« Reply #17 on: October 02, 2009, 03:49:03 pm »

Labradorite - dang it you cant really see all the fire in this piece. that white upper right spot is full of light:)
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« Reply #18 on: October 02, 2009, 04:59:31 pm »

Beautiful MarraMumba !
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akansan
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« Reply #19 on: October 08, 2009, 08:52:28 pm »

Here's another example of AZ Tigers Eye.  Not as lovely as Shane's example, but you can see the resemblance to tiger's eye a bit more:

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Mark
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« Reply #20 on: October 09, 2009, 03:42:03 am »

Connie, nice cab.  I had heard of Tiger Eye from AZ and a few other places, but had never seen it.  Its definitely a nice stone.  Binghamite from the Cayunga Iron Range of Minnesota is also know as American Tiger Eye.

Mark
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gjones
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« Reply #21 on: October 11, 2009, 09:16:19 pm »

a couple of years ago I took a photo of African Pietersite through a mircoscope here are the photos.


* rock1.jpg (307.15 KB, 2776x2074 - viewed 54 times.)

* rock3.jpg (302.89 KB, 2776x2074 - viewed 55 times.)
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« Reply #22 on: October 11, 2009, 10:57:15 pm »

I recognize the one pic from the landing page of your site..

Nice pics... !
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Mark
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« Reply #23 on: October 12, 2009, 07:48:07 am »

Cool Pics.  I love really busy Pietersite with swaths of color here and there.  The bright gold colors just glow and jump out at you.  Someday I am going to get a piece of the mostly golden stuff, that is cabbable.  I have a few small golden pieces, but they are rather misshapen and really hard to work with.

Mark
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« Reply #24 on: October 12, 2009, 08:31:40 am »

  Hey Sara,  i'm cabbing a slab of Labradorite that looks very similar to yours. It's been sitting in my slab box for months and nows it's on the stick. There's lotsa flash and it carves like butter. Anybody know if this material takes a polish?    


* labradorite slab.JPG (44.39 KB, 640x480 - viewed 45 times.)
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bobby1
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« Reply #25 on: October 12, 2009, 09:45:11 am »

Here is a photo of a pietersite cab that I did about a year ago.
Bob
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Mark
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« Reply #26 on: October 12, 2009, 10:03:36 am »

Now that's the Golden Pietersite I was talking about.  Exquisite cab Bob.  About half Gold and half Blue.

Mark
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ScarlettoSara
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« Reply #27 on: October 16, 2009, 07:42:12 pm »

Hey Jon Jon:) Get it cabbed...LOL
your labradorite has more fire than mine and I cant wait to see how it turns out.
I saw a setting one time in a brushed silver pendant blank and it was fantastic.
I will send you one of the blanks if you havent done anything with it yet. I think you will like it:)

Bobby:) Is there no end to the magnificence and magnitude of your treasure trove??? Yet another breath taking design and stone.
I love this place I get to see all these fantastic stones I would have never seen otherwise. I love these natural rocks much more than anything I see in diamonds.
Diamonds are boring comparded to what yall show us:)
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Freeform
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« Reply #28 on: October 19, 2009, 02:20:09 pm »

just to keep debates alive. and not to say anyones wrong. But Labradorite produces what is called a "Pleiocortic" effect, and it not consider "Chatoyant", or have Chatoyancey"  

Pilocortic effect has to do with a similar idea as Chatoyant, and in essese is about crystal formation on a small level. Which has a effect on the play of light.  But if you look closely, Stones that are chatoyant have fibers to them, or are generally fiberous looking. Stones that have the pleocrotic effect have more tables of color, similar to opals.

Now, my spelling is terrible and i can only find one gem reference to the term "pleocrotic", but it is a known effect in feldspar based stones. IN which Labradorite is part of that family. As is moonstone, sunstone, Nummite, Larinite, spectrolite and more im sure.
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Mark
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« Reply #29 on: October 19, 2009, 02:32:16 pm »

Shain you are right.  As with many other ways of classifying rocks, people tend to place stones in groups with other similar stones.  Like you said, the effects are similar, but they are caused by different things.  To the rock specialist, that would be a no no, but to most of the rest of us amateurs, that is what we do.  I tend to think of Nuumite as being rather fibrous.  It seems to be made up of dark fibers that are interspersed with the reflective an kind of iridescent green, gold, or silver metallic fibers.

Mark
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