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January 21, 2019, 08:30:25 am
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Tao MADE ME DO IT! - Sanora Sunrise Chrysocolla

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Author Topic: Tao MADE ME DO IT! - Sanora Sunrise Chrysocolla  (Read 4130 times)
theimage1
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« Reply #30 on: May 20, 2010, 11:43:46 am »

I can think of only one thing that might cause it ... if the Liver of Sulfur got acidified, then it would also have some sulfuric and/or sulfurous acid present, I think the acid would likely attack any carbonate and likely some of the oxides too.  Tenorite is simply CuO and Cuprite is Cu2O.  Of the two I would think the Curite would be the more soluble as the Cu+1 state of copper would rather become the more stable Cu+2.

One of the tests for tenorite is put a drop of acid on the mineral and then scratch it with an iron (fe not galvanized) nail. It should plate a little copper on the nail. The acid dissolves a little of the Cu to make a salt, and the iron reduces the Cu ion to Cu metal.

Malachite i well known for bad reactions around acid, and will often lose it's polish if put in contact with acetic acid (as in vinegar). It's possible to damage malachite with oil and vinegar salad dressing. Since Sonora Sunrise is a mix of Cu containing compounds I would think it would be quite susceptible to any acid treatments.

That would be my guess. Personally I would probably not use any acid based metal treatments on jewelry containing any metal oxides or carbonates. (OK, if you consider Si to be a metal, then silicates are the exception.) The use of acids on both types of compounds is known as "meta leaching" and is one of he prime methods of separating metals for refining.
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« Reply #31 on: May 20, 2010, 02:47:11 pm »

Thank you very much Ron ....

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« Reply #32 on: May 22, 2010, 05:36:40 pm »

The first pic shows the stone in a finished setting. Notice the change in color within the Azurite (blue) area. Actually added green and redish colors look beautiful !



The color has continued to change, probably from chems soaked into the stone. 
It has gotten darker and also lost the little bit of polish that I had put onto it the second time.  Still kinda cool though

This second pic showing the deteroration is a bit out of focus..  Looks pretty dramatic actually..

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thewrightthings
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« Reply #33 on: May 22, 2010, 10:02:26 pm »

George, did you make that pendant?  It's beautiful.  For someone who claimed to be new at this metalsmithing, you have come a very long way.  I am so totally impressed.
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« Reply #34 on: May 22, 2010, 10:49:25 pm »

George, did you make that pendant?  It's beautiful. 

I wish !

No.. Michael Johnson of Cosmic Folklore does this beautiful work. He pops in here from time to tme..

Here is his Cosmic Folklore site.
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thewrightthings
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« Reply #35 on: May 23, 2010, 07:29:23 am »


I wish !
Here is his Cosmic Folklore site.

Wish I had a friend like that who would just pop in and create gorgeous stuff, or show me how. 
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There is no try: only do and don't do. Yoda


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« Reply #36 on: August 02, 2011, 06:56:11 pm »

It is really too bad that those same intense colors are not seen in any significant cabbing area.   

YI think you made out pretty good with that piece of rough. Really nice looking slabs.

You have green areas that the piece I have does not.

This may be a good time to straighten out my perception of what Chrysocolla is.

It is a mineral to itself, correct? Yet I have for what ever reason been thinking that examples like these are a mix of Azurite, Cuprite, and what ever the black area is. Then too some metallic veins.  By the way when you get to polishing this, you will see the metallic veins.

Maybe I am half right? These examples do have actual Chrysocolla within them (or at least the seller believes), but mixed with the others.

If Chrysocolla is a crystal then in reality there is little true Chrysocolla within the Sanora Sunrise. Not that it matters greatly, because it is a pretty group of minerals.

Maybe I should simply ask....... What part of this Sanora Sunrise makes it more Chrysocolla than a mix of Azurite, Cuprite and others?

Sometimes I think I tend to ID some of my cabs as Chrysocolla when they really look like a mix of the above mentioned.


yes chrysocolla is a mineral unto itself.  it is a very pretty light blue.   Think of gem silica which is chrysocolla in chalcedony.

the black, I believe is tenorite.      (Google knows all)  lol
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Stay healthy in 2011.  .  .  . and don't forget to eat some dark chocolate!

Gregor

MrsWTownsend
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« Reply #37 on: August 03, 2011, 05:10:26 am »

I just love that stuff!
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