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Barite Shirley Basin, near Casper, Wyoming 5 x 5 x 3.5 & 5 x 4 x 3 cm Pair of barite blades self collected in the Shirley Basin area in central Wyoming. The barite blades can be found in small pockets along high cliffs of consolidated volcanic ash. I spent many weekends searching for these and only found one pocket in miles of cliff faces that were searched. (Author: Joseph D'Oliveira)

Barite
Shirley Basin, near Casper, Wyoming
5 x 5 x 3.5 & 5 x 4 x 3 cm
Pair of barite blades self collected in the Shirley Basin area in central Wyoming. The barite blades can be found in small pockets along high cliffs of consolidated volcanic ash. I spent many weekends searching for these and only found one pocket in miles of cliff faces that were searched. (Author: Joseph D'Oliveira)

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