| 19424: Copper and Gypsum - $24 Mission pit, Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona Small cabinet - 8.8 x 6.3 x 1.5 cm 81 grams Fluorescent (SW) Specimen status: Reserved Send an email with specimen number to order Many collectors are familiar with
specimens of bright, arborescent copper in clear gypsum
from the Mission pit. This Mission pit specimen is unusual in
that it is abundant sheet copper on an opaque gypsum
matrix. The back side of the matrix displays bright orange
fluorescence under shortwave UV.
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