a naturally-occurring sulphide of zinc

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Englisch - Englisch

Definition von a naturally-occurring sulphide of zinc im Englisch Englisch wörterbuch

A naturally-occurring sulphide of zinc.
blende

The procedure up here with ordinary local zinc blende had been straightforward—first you got the sulfur to go off by roasting the blende to zinc oxide, and then you reduced the oxide to zinc metal.

a naturally-occurring sulphide of zinc
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