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Spinel standards

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JohnF:
I am looking for a spinel (MgAl2O4) epma standard. Anyone have something to share?

Probeman:

--- Quote from: JohnF on January 02, 2015, 03:30:27 PM ---I am looking for a spinel (MgAl2O4) epma standard. Anyone have something to share?

--- End quote ---

Hi John,
I have a lot of this wollastonite:

http://probesoftware.com/smf/index.php?topic=222.msg997#msg997

Good for major silicon and aluminum.

JohnF:
I think you meant Si and Ca (no Al in wollastonite, CaSiO3)

John Donovan:

--- Quote from: JohnF on January 04, 2015, 03:25:09 PM ---I think you meant Si and Ca (no Al in wollastonite, CaSiO3)

--- End quote ---

Yes, sorry. I ain't no darn geologist!

But that does remind me: I'd love to find a super pure end member aluminum silicate, such as sillimanite.

Gseward:
JohnF and I discussed this off-line. We discovered this:

http://www.mtixtl.com/mgal2o4spinel.aspx

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