tasmania releases out...., page-15

Piratexx tin is around US $22k a tonne
Sio2 (cassiterite) is around 70% the value of tin ie around $15.00 a kg
The ore is around 450gms a bmc = .45KG a bmc lets say the


so .45kg * 15 = $6.75 in revenue

$6.75 less 3.34 in costs =$3.41 cash

$3.41 * 150 tons hour = $512.00 an hour

$512 * 250 hours a month = $128K a month.

Per month thats The release states 100m3 or 220 tonnes an hour, improvements to 250m3 or 520 tonnes an hour.

I feel the 18K a month for concentrate you quote is far too high as the concetrate is SiO2 Dr Teale todl me to use a figure of 68% of the tin price for concentrate