Stone Hill

United States· AlabamaUnknown
Contained Copper
—
Average Grade
0.64%
Deposit Type
VMS — Bimodal-Mafic
Discovery Year
1874

Overview

Lenses, massive, 1-8 m thick, dissemination 6 m thick, surface gossans. Two samples carried 103 g/t Ag and 0.51 g/t Au. Composite samples carried 18.3% S, 0.13% Pb, 0.8% Zn. Three samples of gossan contained 0.6-2.0% Cu, 0.09-0.11% Zn, 0.08-0.18% Pb, 0.004% Co and 0.004-0.015% As.

Geological Context

Tectonic Setting: Pelite-mafic in mature oceanic backarc

Resources & Operations

Production Start: 1874

Data Provenance

Source: USGS MRDS

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