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Post by toiv0 on Nov 30, 2016 15:43:51 GMT -5
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Thomsonite
Nov 30, 2016 18:21:13 GMT -5
via mobile
Post by orrum on Nov 30, 2016 18:21:13 GMT -5
Very good smithing and stones too, they r unusual!
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Post by Jugglerguy on Nov 30, 2016 18:29:55 GMT -5
Those are great. Is that last one thomsonite and agate in the same stone?
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Post by toiv0 on Nov 30, 2016 18:46:45 GMT -5
Those are great. Is that last one thomsonite and agate in the same stone? the middle is actually green thomsonite and the pink is not agate though it has fortification lines. But all thomsonite.
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Post by Jugglerguy on Nov 30, 2016 20:19:23 GMT -5
I didn't realize that thomsonite could have fortification lines. I have only see it with eyes. I guess I learned something new today.
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ziggy
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Post by ziggy on Nov 30, 2016 22:07:29 GMT -5
I didn't realize that thomsonite could have fortification lines. I have only see it with eyes. I guess I learned something new today. I guess we're all being educated. I got to looking and found this photo of some thomsonite. Look at the one left middle. Looks a lot like his I would say. His green one does not have the typical chlorastrolite (the name for green thomsonite or greenstone) turtle shell look though. If it was more contrasting it would be more typical and even more valuable. Still, portions of it do look like pale colored greenstone and the copper inclusions are a positive and not unusual to be found in association with thomsonite of either variety.
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Deleted
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Post by Deleted on Nov 30, 2016 22:39:57 GMT -5
I agree that the pendant doesn't look much like thomsonite. Thomsonite (no "p") and chlorastrolite/pumpellyite (aka, Isle Royale Greenstone) both form within amygdules or fractures in vesicular basalt and both can have radiating (acicular) forms that produce the eyes in thomsonite and the turtleback pattern in chlorastrolite. However, they are 2 different minerals. I have seen thomsonite with intrusions of both agate and quartz, so that fits for the ringstone. The eyes aren't really fortification, just how it looks when 2 sprays of acicular crystals intersect. I'm wondering if the pendant might be some copper-stained quartz, agate or breccia, or a copper-complex material like campbellite? Or perhaps it is heavily included (with native copper, etc.) "garden" datolite similar to this piece:
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Post by toiv0 on Dec 1, 2016 5:03:34 GMT -5
I agree that the pendant doesn't look much like thomsonite. Thomsonite (no "p") and chlorastrolite/pumpellyite (aka, Isle Royale Greenstone) both form within amygdules or fractures in vesicular basalt and both can have radiating (acicular) forms that produce the eyes in thomsonite and the turtleback pattern in chlorastrolite. However, they are 2 different minerals. I have seen thomsonite with intrusions of both agate and quartz, so that fits for the ringstone. The eyes aren't really fortification, just how it looks when 2 sprays of acicular crystals intersect. I'm wondering if the pendant might be some copper-stained quartz, agate or breccia, or a copper-complex material like campbellite? Or perhaps it is heavily included (with native copper, etc.) "garden" datolite similar to this piece: it is too soft to be quartz, It came out of the same rough piece the other came out of. Not to say you couldn't have 2 different materials out of the same rock.
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Post by toiv0 on Dec 1, 2016 5:15:54 GMT -5
I just looked up campbellite which is from Bisbee Az, I had never heard of it before. It looks very similar to some of the material and obviously is a copper complex mineral. One article said it fluoreces which is rare in a copper mineral. If I was to check this would I just pull out my old black light? Would be interesting to see. Some of the images of it under the light were awesome.
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NDK
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Post by NDK on Dec 1, 2016 15:30:32 GMT -5
These pieces are fantastic, and I'm getting some "schoolin" along the way!
Nice job sir!
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Deleted
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Post by Deleted on Dec 1, 2016 16:46:51 GMT -5
If these are indeed thomsonite, you should be able to detect the radiating crystal structure, either with the naked eye or under a loupe or microscope. Here are quick shots of a couple of polished thomsonite cabs (sorry for the artificial light, but it's cloudy today): Note how the crystal needles go at right angles through the banding. If you can't see the needle/ray structure, then what you may have is something else that is copper included. I just couldn't detect any acicular spray structure in your photos, so decided that photos might do better than me trying to explain.
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Post by toiv0 on Dec 1, 2016 17:38:16 GMT -5
I looked for the other half of the stone in the ring, its here somewhere. The pendant stone is gone and it was the whole stone. Like I mentioned these stones came out of the same matrix along with the stone I am posting now. This stone you can see the radiating crystals from the eye, then they disappear and there is some pink translucent mineral. Looks like the pink translucent was there first (unless it ate part of the thomsonite iris) as the radiating crystals stop before its round. So you think its not thomsonite? There is another eye on the other side.
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Post by toiv0 on Dec 1, 2016 17:46:43 GMT -5
If these are indeed thomsonite, you should be able to detect the radiating crystal structure, either with the naked eye or under a loupe or microscope. Here are quick shots of a couple of polished thomsonite cabs (sorry for the artificial light, but it's cloudy today): Note how the crystal needles go at right angles through the banding. If you can't see the needle/ray structure, then what you may have is something else that is copper included. I just couldn't detect any acicular spray structure in your photos, so decided that photos might do better than me trying to explain. On the top photo where the spray structure is in the pink and green the pink and green has no spray structure which looks real similar to the pendant without the spray stucture. Kind of curious what kind of copper complex it actually is. Looks like it might also have been there before the sprays at least in while still in liquid form.(unless the thomsonite ate the copper complex mineral) Would that be concidered a psuedomorph it replaced it? Either the spray replacing the copper complex mineral or in my last picture the copper complex mineral replacing the thomsonite. WHEW my brain is about to explode too much to think about.
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Deleted
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Post by Deleted on Dec 1, 2016 21:37:56 GMT -5
Super cool thread. With super smart people.
Enjoying from afar.
Thanks everyone!!
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ziggy
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Post by ziggy on Dec 1, 2016 22:17:45 GMT -5
I looked for the other half of the stone in the ring, its here somewhere. The pendant stone is gone and it was the whole stone. Like I mentioned these stones came out of the same matrix along with the stone I am posting now. This stone you can see the radiating crystals from the eye, then they disappear and there is some pink translucent mineral. Looks like the pink translucent was there first (unless it ate part of the thomsonite iris) as the radiating crystals stop before its round. So you think its not thomsonite? There is another eye on the other side. That one looks like thomsonite I also wanted to complement you on your metalwork.
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Post by toiv0 on Dec 1, 2016 23:32:25 GMT -5
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Post by wigglinrocks on Dec 3, 2016 21:53:59 GMT -5
Thomsonite or not , very eye pleasing and great on them
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metalsmith
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Post by metalsmith on Dec 23, 2016 8:24:11 GMT -5
Super-cool stones beautifully set
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icatz
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Post by icatz on Dec 25, 2016 8:15:20 GMT -5
Don't know the stone but I love the settings.
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Fossilman
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Post by Fossilman on Dec 26, 2016 10:37:56 GMT -5
Very nice looking maerial......Great work with the incorporation,,,.....
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