This note describes changes found useful in staining methods for differentiation oi K-feldspar and plagioclase, and adaptations of the changes for use in the field. The method used is the hydrofluoric acid etch and staining of K-feldspar with sodium cobaltinitrite.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.