Nepheline Syenite
Nepheline syenite from the Transvaal, So. Africa. Red CL is albite. Light blue CL is K-feldspar. Yellow CL is sodalite. Courtesy of Dr. Anthony Mariano.
For a larger view, click on the corresponding photo.
Nepheline syenite from the Transvaal, So. Africa. Red CL is albite. Light blue CL is K-feldspar. Yellow CL is sodalite. Courtesy of Dr. Anthony Mariano.
For a larger view, click on the corresponding photo.