Green orthoclase feldspar from Vietnam

Brenden M. Laurs1, George R. Rossman2, James E. Shigley1

1GIA  Research Laboratory
Carlsbad, CA 92008, USA

Division of Geological & Planetary Sciences
California Institute of Technology, Pasadena, CA 91125-2500, USA


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