[Rockhounds] Mineral ID

[pmodreski at aol.com]

Those are mica group minerals; formulas analogous to phlogopite, which is

KMg3AlSi3O10(OH)2? only with Na and Ba instead of K, and F instead of OH.

Oh, you want the NAMES too?? Well, I don't have those at the tip of my tongue, probably someone else will supply them!

Sorry for only the partial answer...

Pete


-----Original Message-----
From: Lawrence Rush <larryrush at worldnet.att.net>
To: Rockhounds at lists.drizzle.com
Sent: Fri, 7 Mar 2008 2:11 pm
Subject: [Rockhounds] Mineral ID



Does anyone know the mineral species associated with the following 
aluminosilicate oxyfluorides? I have no reference work in which to find these.

The numbers following the formulas are the crystallographic pdf numbers 
..................

NaMg3AlSi3O10F2 - 25-0842
BaMg3Al2Si2O10F2  - 19-0117



Thanks......Larry Rush

"Noel Coward thought work was more fun than play,  but he never, ever worked in 
the mines"

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