Porphyroblastic andalusite-cordierite-staurolite-biotite-garnet schist
Macroscopic: Mega-porphyroblastic andalusite, cordierite, staurolite, biotite, garnet schist. Relict bedding, cross bedding or graded bedding may be apparent in some samples. Mineral zone: staurolite-andalusite. Microscopic: Large garnet phenocrysts within a very fine grained matrix containing biotite. Thin section pictures in XPL unless otherwise noted in the title of the picuture. Thin sections are 3mm across.
Western Minerals, Inc.
Number of Thin Sections