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GSCI 320L - Petrology Lab
Fort Hays State University
Spring 2011

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Lab #14

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Sample ID Rock Name Highest Barrovian Index Mineral
14-A staurolite schist staurolite
14-B garnet schist garnet
14-C sillimanite gneiss sillimanite (var. fibrolite)
14-D kyanite schist/gneiss kyanite
14-E chlorite schist/gneiss chlorite
14-F biotite phyllite biotite
14-G staurolite schist staurolite
14-H garnet schist garnet (may be microscopic silimanite)
14-I garnet schist garnet
14-J garnet/biotite schist garnet (trace)

Low Grade : E (chlorite) -> F (biotite) -> J (biotite/garnet)-> H/B/I (garnet) -> A/G (staurolite) -> D (kyanite) -> C (sillimanite) : High Grade

Sample ID Plane Light X-Polarized Light Most similar
to Hand Sample
image_0314 image_0315 14-A
image_0320 image_0321 14-D
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GSCI 320L - Petrology Lab
Dr. Ron Schott, Assistant Professor of Geology
Fort Hays State University - Geosciences Dept.
600 Park Street, Hays, KS  67601-4099
Phone: (785)628-5348  Fax: (785)628-4096
E-mail: rschott@fhsu.edu
Web: http://hays.outcrop.org/schott/
Page content last revised on: 27 April 2011