Cabinet sized Barite mineral specimen ? a classic from the Blackwell Pit, Tiff, Washington County, Missouri

Barite – A classic specimen from a mined-out, classic location! Blackwell Pit, Tiff, Washington County, Missouri - This large cluster of “bladed” barite has the typical dark reddish color of specimens from this district. The specimens weather out of the late Cambrian age Potosi Formation and are found in dark reddish clay. ex Collection of H.C. Coburn 927 grams