MATRIX OF GOLD AT THE THAMES
(by mb. skey, govebnment analyst.)
I was not able to observe any other matrix, than quartz, or highly quartzosed rocks, where gold at least was in paying quantity. These veins or quartzose rocks generally run through a white or grey tufaceous granular rock, which, as also the quartz is generally pyritous. In two cases the pyrites was separated from a quantity of some of this tufaceous rock, free from all appearance of quartz veins, and these when separately assayed, gave no positive indication of gold. In another, some iron pyrites from the Long Drive claim, selected with the greatest care, so as to avoid anything like a quartz vein, gave distinct traces of this metal when analysed. Both samples occurred in the same kind of grey granular rock as previously cited.
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Bibliographic details
Thames Guardian and Mining Record, Volume I, Issue 60, 15 December 1871, Page 3
Word Count
137MATRIX OF GOLD AT THE THAMES Thames Guardian and Mining Record, Volume I, Issue 60, 15 December 1871, Page 3
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