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Lapidary / Gemstone Community Forum
March 26, 2019, 02:15:30 am
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ID help Metallics- Mohawkite and mystery stone???

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Author Topic: ID help Metallics- Mohawkite and mystery stone???  (Read 374 times)
ileney
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« on: July 10, 2015, 09:42:42 am »

Hi, I have a few metallic slabs or pieces of slabs. One is different from the others and I need help IDing it. I'd also like to verify that all the rest are Mohawkite in Quartz and any advice on safely cabbing either/both types of stones as I know metallics sometimes require extra safety precautions. There was a very large thread about Metallic stones I found from a few years ago and Mark and others contributed pictures of many stones and insight. The trouble is that many of the stones look very similar to me and I am still not sure.

All but that one of the slabs and finished cabs/jewelry are definitely made of the same material- I believe to be Mohawkite in quartz. The one small piece of slab that I have no idea on is much darker and more crumbly. It kind of looks like gold in hematite or marcasite to me or maybe even gold in some sort of Mica as the black shiny stuff is so crumbly. But maybe it isn't gold. And maybe it isn't marcasite. I have no idea how safe it would be to even try to cab it from a health perspective?  The odd stone out is the first and second picture, showing front and back, and I have also shown it next to what I think is the Mohawkite in quartz and slabs of the same material. In the fifth picture, the odd piece out is the small piece on the left. The last picture is just the Mohawkite in quartz pendant by itself.


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kennyg
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« Reply #1 on: July 10, 2015, 03:25:30 pm »

Covelite most probably from Butte Montana
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rocks2dust
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« Reply #2 on: July 10, 2015, 06:59:29 pm »

I was thinking "Josephine's Crown" from sw Oregon. IIRC, it's a mix of quartz, chalcopyrite, pyrite, with a bit of silver, gold and other rare metals thrown into the mix.

Pulsite  (mix of nickel, zinc, copper, manganese, silver and iron oxides) is a similar material from the same general area, but usually shows much less quartz.
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Mark
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« Reply #3 on: July 10, 2015, 08:07:53 pm »

I would also probably go with Josephine's Crown which is nickel based if i remember correctly.  Hard to tell from the pics, but one did look a bit like some Mohawkite i had too.  If you knew it came from OR, then i would go with JC, if from Canada and maybe more towards north of MN, I would think more like Mohawkite.  There is also some silver based stones around too. 

Mark
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ileney
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« Reply #4 on: July 11, 2015, 08:48:37 am »

Thank you for help with the ID!
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mirkaba
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« Reply #5 on: July 12, 2015, 11:28:16 am »

I am not sure but the first slab looks a lot like specular hematite. The yellow metal is interesting. Probably not gold but wouldn't it be neat if it was.
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Bob

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ileney
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« Reply #6 on: July 12, 2015, 02:45:45 pm »

Thanks. The first and second stone are actually the same stone, back and front. Then, I show it next to what I thought was mohawkite, just to show that the  metal in the other stones is much more brassy or coppery and much less goldish.
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Sheldon74
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« Reply #7 on: August 03, 2015, 06:38:54 pm »

Could it be nickeline?
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