Photos of the Dacite Cliffs Mine in the Superstition Mountain Wilderness

Dacite Cliffs Mine in the Supersitions Dacite Cliffs Mine in the Supersitions Dacite Cliffs Mine in the Supersitions Dacite Cliffs Mine in the Supersitions Dacite Cliffs Mine in the Supersitions Dacite Cliffs Mine in the Supersitions Dacite Cliffs Mine in the Supersitions
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Dacite Cliffs Mine in the Supersitions
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Dacite is an igneous, volcanic rock that is usually light gray.

Old mines can be dangerous with accumulations of poisonous gas and other hazards. Bats nest in these shafts and it's important that they not be disturbed.

There are two workings, one at the base of the cliffs at about 2,460 ft elevation, and the second in the cliffs at about 2,985 ft elevation.

- The upper working explores a vein of quartz, calcite, barite, chrysocolla, and malachite. It assayed 0.01 oz gold per ton, 0.9-oz silver per ton, 1.3 percent copper, and
1.5 percent lead.

- The lower working follows a vein composed of quartz, barite, and calcite. The entire working is in daclte agglomerate with no metallization observed.

The above info came from:Mineral investigation of the Superstition Wilderness and Contiguous Rare II Further Planning Areas, Gila, Maricopa, and Pinal Counties, Arizona
U.S. Bureau of Mines Mineral Land Assessment
MLA 136-82 1982
By Jinks, J.E.
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