The current mining setup of similar style deposit and similar...

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vertigo

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04/07/18

07:45

Post #: 34121916
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Originally posted by trtkjd1 ↑

Vert if you do enough reading it will surprise you. Even the great charter towers goldfield I have read ( and don,t quote me to find it as was an article I stumbled across while working out why CTO performed so poorly, and have never found it again.) required grade of 2 ounces to the ton to make profits due to the pod nature of the deposit. There is a private mine in Payne’s find that the owner says grades 2 ounces to the ton on hand sorted ore but the majors over here won’t touch it because it is only 10. - 20 cm thick and wont make payable grade when diluted to minimum mining widths and development costs. It’s not the same world now as a hundred years ago where mining deaths were common , ore was hand sorted cause labour was cheap , tailing could be disposed of wherever you like. Morning star may have closed many years earlier if they couldn’t,t dump there tailings in the river and had to dispose of it properly. Even Medusa mining in the Philippines struggled on exceptional grade ( haven’t followed it for years now so don,t know how it’s performing at the moment.) with low labour costs . SLR made some money out of daisy milano on 8 gram dirt but that was diluted grade for the mining width. But often had poor quarters when the grade slipped to 6. Tanimi gold used to have some great drill hits but only ever managed grades around 5 grams and eventually shut. So for on narrow vein I recon you will need 7 grams diluted on a consistent basis to make money if you have consistent veins to follow . Poddy unreliable and hard to mine deposits ( shoot me down in flames ) will imo require grades in excess of an ounce to the ton to make it work on a long term basis. A lot less if you you can source good tonnage .

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The current mining setup of similar style deposit and similar mining techniques at A1 show that it is 4g/t head grade.

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The current mining setup of similar style deposit and similar...

Top Stories

Recce scores $6.75M R&D rebate

CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch

Auric sniffs gold up to 12.1g/t through drilling at Spargoville prospects

Bigtincan's Board backs Investcorp offer: Why a NASDAQ listing could be game-changing

Blue Star Helium sees approval for five more wells at 'Galactica/Pegasus' project in Colorado

InhaleRX gains approval for clinical trial to test non-opioid therapy for cancer pain

Cyclone signs MOU with Vale for development of Iron Bear play

NT Gov't delivers environmental approval for Empire Energy's Beetaloo Carpentaria pilot gas play

Tyranna wraps up lithium drilling in Angola; says looking for other projects with different metals

To make modern missiles, you need 3D Printing. And in that gold rush, Amaero is selling shovels