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Clinopyroxenes are common in the Franklin-Sterling Hill area. The Mg-dominant species, diopside, is found throughout the Franklin Marble, and diopside and the Mn-, Fe-, and Zn-dominant species are found within and near the Franklin and Sterling Hill orebodies. The pyroxenes have been little studied, but are abundant and are the preferred host for Mg in the high-temperature calcium-silicate assemblages.
Sixty years ago, the distinctions among the pyroxenes were unclear. Some names in use then, which were based on minor chemical differences, such as leucaugite and others (Palache, 1935), have since been relegated to the synonomy. The locally-occuring pyroxenes are listed below.
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| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
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Link
to homepage
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This
page created: January 13, 2001 |
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