Event Title

Pet Mineral Project: Plagioclase

Presenter Information

Calvin Wight, Colby CollegeFollow

Location

Parker-Reed, SSWAC

Start Date

1-5-2014 1:00 PM

End Date

1-5-2014 2:00 PM

Project Type

Poster

Description

The mineral plagioclase is a silicate mineral in the feldspar family. Its name is a derivative of the Greek term for oblique fracture which refers to the two cleavage planes, which are a basic physical feature of the plagioclase. Mineralogist Johann Freidrich Christian Hessel named the mineral in 1826 in Germany, as a description of the two prevalent angles of cleavage expressed in plagioclase. The composition of plagioclase exists as a mixture of NaAlSi3O8 (albite) and CaAl2Si2O8 (anorthite).

Faculty Sponsor

Tasha Dunn

Sponsoring Department

Colby College. Geology Dept.

CLAS Field of Study

Natural Sciences

Event Website

http://www.colby.edu/clas

ID

788

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May 1st, 1:00 PM May 1st, 2:00 PM

Pet Mineral Project: Plagioclase

Parker-Reed, SSWAC

The mineral plagioclase is a silicate mineral in the feldspar family. Its name is a derivative of the Greek term for oblique fracture which refers to the two cleavage planes, which are a basic physical feature of the plagioclase. Mineralogist Johann Freidrich Christian Hessel named the mineral in 1826 in Germany, as a description of the two prevalent angles of cleavage expressed in plagioclase. The composition of plagioclase exists as a mixture of NaAlSi3O8 (albite) and CaAl2Si2O8 (anorthite).

http://digitalcommons.colby.edu/clas/2014/program/99