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Tri-State and Viburnum Trend Districts.

From: Rocks & Minerals  |  Date: 11/1/1997  |  Author: LASMANIS, RAYMOND

Some of the largest concentrations of lead and zinc are located in the midwestern states of the US. The Tri- State district of Oklahoma, Missouri and Kansas and the southeastern Missouri Viburnum Trend share several geological similarities, which have not only produced the minerals mentioned above but museum-quality examples of sphalerite, calcite and galena.

AN OVERVIEW

The Midwest contains two of the greatest concentrations of zinc and lead in the world. These are the Tri-State ...

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