[Rockhounds] Columbite

[DonH]

edwardjwagner at bellsouth.net wrote:

> To Misters Turner, Modreski and Currier: Gentlemen, I stand corrected. I seem to have been re-stating an article by Bob Jones in Rock and Gem Mag, circa 1995 or '96. Bjut, let's keep the scientists in the fore. EW

I'm just curious regarding what is the original reference for using 
Levinson modifiers to designate the primary transition metal cation in a 
mineral.  I must say it does make good sense if used properly, but I 
don't know if anyone has ever written up and standardized this type of 
usage.

Don