Metal prices are as follows (there may be variations): Zinc...

Metal prices are as follows (there may be variations): Zinc priced at US$1.0265 per lb (not troy)
lead priced at US$1.1278 per lb "
silver priced -US$36.86 per troy ounce.

32.1507466 troy ounces in a kilogramme.
2.2046lbs (not troy lbs) in a kilogramme.

Zinc = US$2,263 per tonne (metric)
Lead = US$2,486 per tonne "
Silver = US$1,185,324 per tonne

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Guess-estimate is 7,060 tonnes of silver resources, 128,614 zinc and 69,550 lead - from drilling so far.

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Will have to do a lot more work on small mine costings to guess future possibilities. The silver side looks more promising than first thought.