Red Rock expects output improvements at Colombia mine
It said the emphasis has been on improving grade following a visit by management and consultants at the beginning of June.
It says that between 8-14 June, the the grade of ore into the plant improved to 11.9 grams per ton, which compares with levels between 6.5 g/t and 8.1 g/t in the five preceding weeks. The mine has operated a six-day week for each of the last two weeks, and produced 54.6 tons per day in the week ending 14 June.
The mill has operated a 6.5 day week in the last two weeks, and processed at the rate of 50 tpd.
Gold sold from 1 June to 9 June was 3.03 kg (97.4 oz).
The company also said it had applied for two licences in the Rift Valley in Kenya with with prospectivity for rare earths.
The Ol Karia licence application of 308 sq km covers the Ol Karia rhyolites, a series of fluorite-phyric rhyolite glasses.
Fluorite is only rarely a magmatic phenocryst mineral and its presence is potentially significant. Here the fluorite has a relatively flat rare earth element (REE) pattern but with a maximum at Gadolinium.
The Dysprosium heavy rare earth (HREE) contents of the fluorite is according to the academic literature highly elevated at >2000x chondrite.
The Kilombe licence application covers 164 sq km of the Kilombe volcanic.
There is evidence in rocks produced from the Kilombe volcano of a REE-rich carbonatite complex at depth.
The minerals identified by researchers include RE fluorcarbonates, eudialyte (HREE), monazite (REE and P), pyrochlore (Nb, Ta, U and REE) and thorite (Th, U REE).
At 2:13pm: [LON:RRR] share price was +0.06p at 7.5p
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