Volume 10, 1877
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Auriferous Quartz.—Tuapeka (from the Blue Spur.)
A mass of quartz, schistose, and other pebbles, mixed with much water-worn shotty gold, cemented together by a chloritic base.
Presented by Mr. Nichol.
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In the form of minute globules, mainly more or less hidden away in the crevices. The dark veins contain, in addition to mercury, both copper and sulphur.