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a strange material
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Author:  MADADIDIERITE [ Thu Dec 27, 2018 6:41 am ]
Post subject:  a strange material

Looks nice, looks like lapis lazuli or larimar.

Attachments:
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20181227_121333.jpg
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20181227_121312.jpg
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Author:  Stephen Challener [ Fri Dec 28, 2018 2:19 am ]
Post subject:  Re: a strange material

Cool. It's definitely not lapis or larimar as I'm sure you know, but it does have some interesting form to it. Is it something you've spotted locally? I wonder what it could be.

Author:  MADADIDIERITE [ Fri Dec 28, 2018 6:35 am ]
Post subject:  Re: a strange material

I don't know what it is. But i am sure it is a natural material from Toliara, Madagascar

Author:  Barbra Voltaire, FGG [ Fri Dec 28, 2018 8:49 pm ]
Post subject:  Re: a strange material

Kinda reminded me of Mossy Creek Glassy Furnace Slag or Leland Blue.

With a little research I discovered the Molo Graphite Project, Green Giant Project and the Toliara Mineral Sands Project all of which have active refineries in Toliara, Madigascar.

Possible blue slag?

Author:  Jason Barrett [ Sat Jan 05, 2019 7:23 pm ]
Post subject:  Re: a strange material

I wonder if the cabochons have just a blue skin, like the rough pieces do, or if they're blue through and through?

Author:  Stephen Challener [ Sat Jan 05, 2019 7:44 pm ]
Post subject:  Re: a strange material

Jason Barrett wrote:
I wonder if the cabochons have just a blue skin, like the rough pieces do, or if they're blue through and through?

The rough appears to have a tan skin over solid blue.
The patterning doesn't have the wavy flow lines I think of in leland blue. But it is odd.

Author:  MADADIDIERITE [ Fri Jan 11, 2019 3:40 am ]
Post subject:  Re: a strange material

another photo

Attachments:
strange.jpg
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Author:  Barbra Voltaire, FGG [ Sat Jan 12, 2019 1:59 pm ]
Post subject:  Re: a strange material

I suggest you break off a small bit and send it to Stephen for a once over.

Author:  Icehut [ Thu Jan 17, 2019 12:38 pm ]
Post subject:  Re: a strange material

Start with some basic tests, H, SG, reaction to acids. Do you know anything about exactly where it came from? Any pieces with matrix or associated minerals?

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