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The spinel group of minerals, found in all the economic units in the area, is the most important group here. Locally, franklinite is the principal member of the group and is the primary and dominant oxide mineral in both orebodies. Franklinite, magnetite, jacobsite, and gahnite all occur within the orebodies; magnetite occurs also within the Furnace Magnetite Bed; and spinel is common and hercynite is rare in the Franklin Marble. The locally-occurring members of the spinel group 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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