Green orthoclase feldspar from
Vietnam
George R. Rossman1,
James E. Shigley2
1Division of Geological &
Planetary Sciences
California Institute of Technology, Pasadena, CA 91125-2500, USA
2GIA Research Laboratory
Carlsbad, CA 92008, USA
Abstract
A report presents information about
green orthoclase obtained from a pegmatite near Minh Tien,
south of Luc Yen in Yen Bai Province, Vietnam. As the case
with all green and blue orthoclase and microcline feldspars (amazonite)
this feldspar contains a minor amount of lead.
A fragment of green orthoclase from Vietnam