Royal Standard Mine
Extract from: The New Zealand Mines Record, Vol 1 August 1897. No.1
A parcel of 3½ tons of ore from the Royal Standard, Wharekiraupunga, has just been tested by the cyanide process at the Thames School of Mines. Mr. F. B. Allen, the Director, reports that the ore assayed £5 1s. per ton, and of this 93 per cent. of the value was extracted by potassium-cyanide. The ore which passed through his hands was well adapted to the process, being free from base minerals injurious to cyanide, and carrying gold in a state of fine division.