Keg Deposits and Other Charges. There is a $30 deposit for every keg (regardless of size), $60 deposit for every tap, and $30 deposit for every bucket. Taps and buckets are due back within three (3) days from the date of sale, Late returns will be assessed a $2 per day (per item) late fee.eg Deposits and Other Charges. There is a $30 deposit for every keg (regardless of size), $60 deposit for every tap, and $30 deposit for every bucket. Taps and buckets are due back within three (3) days from the date of sale, Late returns will be assessed a $2 per day (per item) late fee.
Chalcopyrite is a common mineral and is found in almost all sulfide deposits. Fine crystals of chalcopyrite have a unique character and can add to anyone's collection. As an ore of copper, the yield of chalcopyrite is rather low in terms of atoms per molecule.
The most successful copper heap leaching operations have been those processing copper oxides and secondary copper sulphides (Table 1). Chalcocite (Cu2S) is the main copper sulphide mineral mined at bioleaching operations. Some of the chalcocite heap operations began as oxide (chemical) leach operations and were converted to bioleach (oxidative) operations by heap aeration and/or inoculation, when the oxidised ore was depleted.