[Rockhounds] Question

[DonH]

Carolyn Reynard wrote:

> To the List:   Has anyone any information about Plumbo-Orthoclase
> from the Pinnacles Mine, Broken Hill, NSW, Australia?


Funny you should mention that... I just analyzed some.  What do you want 
to know about it?  FYI, the precise term is "plumbian orthoclase." 
There were a few articles written about it.


Solubility and behavior of lead in green orthoclase (amazonite) from 
Broken Hill, New South Wales, Australia.  Murakami, Hideki; Takashima, 
Isao; Nishida, Norimasa; Shimoda, Susumu; Matsubara, Satoshi.  Research 
Institute of Materials and Resources, Faculty of Engineering and 
Resource Science, Akita University, Akita,  Japan.  Ganko  (2000), 
95(3),  71-84.

Green lead-containing orthoclase.   Cech, F.; Misar, Z.;  Povondra, P. 
  Fac. Sci.,  Charles Univ.,  Prague,  Czech.    Tschermaks 
Mineralogische und Petrographische Mitteilungen
(1971), 15(3), 213-31.