Home > Laskowski Ⅷ – September 21 > MS1966 Parabutlerite with butlerite

Parabutlerite with butlerite

Butlerite and parabutlerite are dimorphous hydrous iron sulfates. Lausen (1928) named butlerite after Dr. G. Montague "Monty" Butler (1881-1961), Dean of the College of Mines and Engineering at University of Arizona. When Bandy (1938) found a mineral similar to butlerite, he appended the original name with Greek root para for near. Bariand et al. (1977) describe the sulfate minerals at this locality.

Parabutlerite forms brown tablets to 3 mm while butlerite forms an underlying crystalline crust. This locality is the best of species occurrence for parabutlerite. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.

Price: $400

Item code: MS1966

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