Helvetia

United States· ArizonaUnknown

Contained Copper

2.0 Mt

Average Grade

0.55%

Deposit Type

Porphyry Cu-Mo

Discovery Year

1880

Overview

Exposed.

Geological Context

Host Rock: quartz latite porphyry, quartz monzonite, skarn (56-62)

Resources & Operations

Operator: 1875

Production Start: 1903

Data Provenance

Source: USGS MRDS

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