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Magma, Arizona – Sulphide Zonation

Sulphides are zoned from

arsenical copper sulphides

typical of high-sulphidation

mineralisation through

intermediate sulphidation to low

sulphidation.

Gold has an affinity with the

distribution of bornite.

It should be noted that the high-

/ low-sulphidation mineralogy

should not be taken to imply a

degree of wall-rock reaction

common to those epithermal

deposit styles.

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