Based purely on atomic mass if the material was 100% carrollite as per the CuCo2S4 formula then weights would be 20.54% Cu, 38.05% Co and 41.41% S - this obviously lines up with your analysis above.
The SG of Carrollite is 4.5-4.8.
So let's take the lower end and say 4.5t/m3
At 20% Cu that is 0.9t and 0.38% Co that is 1.7t. At current metal prices we are talking about $140,000 of metal per m3.
Even if it's 10% carrollite in that 10m intersection we are talking about some insane numbers. Gulp....
NZC Price at posting:
25.0¢ Sentiment: Buy Disclosure: Held
