1. Minerals of Texas
  2. Minerals Listed by Texas County

Ellis County

Mineral specimens found in Ellis County, Texas.
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  • Pyrite, Ellis County, Texas

    Pyrite, Ellis County, Texas

    Pyrite, an Iron Sulfide Locality: Ellis County, Texas (probably from the Txi Industries Cement Quarry in Midlothian) Chemical Formula: FeS2 Crystal System: Isometric Specimen size: 3 in x 2.75 in 2.5 in Specimen weight: 103 grams In the Arthur E. Smith Collection, on display at Wheaton College, Wheaton, Illinois.

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