mines, balbalan, kalinga - Bali Fokus

1. Gaang Amalgamation vs. Philippine Hg-Free MethodAreas ofComparisonTime/duration(number of hoursused inprocessing 3loads of grindedore)Equipment andmaterials usedRecoveryefficiencyAmalgamation(current miningmethod practicedin Gaang)Small sluiceSmall launderMercuryBoraxCharcoalFurnaceSluicing and panning(mercury-free methodintroduced by BanToxics)Remarks7 hours 4 hours • The time spent foramalgamation was based onthe feedback given by theparticipants• The time spent for sluicingwas based on the result ofthe training documentationImproved sluice boxLaunderBoraxDetergent soapCharcoalFurnace• The difference in the processand materials used comesafter the grinding of the ore1.2 grams/load 3.2 grams/load • Based on the seven loads ofore from the same sourceGold quality/karat 14.3 15.9 • Based on feedback from theparticipants from the testsconducted in Baguio City