Page View
Bureau of Mines / Minerals yearbook 1990
(1990)
Potter, Michael J.
Feldspar, nepheline syenite, and aplite, pp. 423-430
Page 423
![[page image]](http://images.library.wisc.edu/EcoNatRes/0004/0001/M/0431.gif)
As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright




