The Peloncillo mining district in the Black Hills has a solid history of producing pumice and scoria as well as being a unique site for collecting fire agates.
The Black Hills are at the northern end of the Peloncillo Mountains in Cochise County. Scenic access is from the 21-mile stretch of road known as the Black Hills Back Country Byway, formerly called the old Safford-Clifton Road.
This article Mine Tales: Black Hills in Peloncillos known for pumice, fire agate details the history of the road, the geologic history of the area, the process by which pumice is created, the history of mine ownership, and includes details about the fire agates found at the site.
Source:
Special to the Arizona Daily Star, William Ascarza. "Mine Tales: Black Hills in Peloncillos known for pumice, fire agate." Arizona Daily Star, The (Tucson, AZ), Web Edition ed., sec. Local, 8 May 2016. NewsBank. Accessed 18 Apr. 2018.
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