金的赋存状态及粒度特性
矿石中可见金及次显微各占一半,游离金占总金量的47.66%,赋存于黄铁矿中的金占50.98%,赋存于脉石中的金占1.36%。次显微金的富集矿物为黄铁矿,金在其中呈不均匀分布。自然金与黄铁矿密切共生、其次为石英及黄铜矿。金在黄铁矿、石英中主要以包裹金存在,在黄铜矿中以包裹金和裂隙金形式存在。
自然金在矿石中呈包裹金、裂隙金、粒间金3种形式嵌布,以包裹金为主。据镜下分析结果:包裹金占61.01%,裂隙金占27.43%、粒间金占11.55%,金的粒度范围为0.2~0.005 mm,其中粗粒金(O.295~0.074mm)占14.76%,中粒金(0.074~0.037mm)占27.20%,细粒金(0.037~0.O1mm)及微粒金(<0.01mm)占58.04%。
Occurrence and grain size characteristics of gold
矿石中可见金及次显微各占一半,游离金占总金量的47.66%,赋存于黄铁矿中的金占50.98%,赋存于脉石中的金占1.36%。次显微金的富集矿物为黄铁矿,金在其中呈不均匀分布。自然金与黄铁矿密切共生、其次为石英及黄铜矿。金在黄铁矿、石英中主要以包裹金存在,在黄铜矿中以包裹金和裂隙金形式存在。
Ore in each half of visible gold and sub micro and free gold accounted for 47.66% of the total amount of gold, hosted in pyrite in gold accounted for 50.98%, occurrence of gold gangue accounted for 1.36%. The enrichment of the gold in the gold is pyrite, and the gold is distributed unevenly. Natural gold and pyrite close symbiosis, followed by quartz and chalcopyrite. Gold in pyrite and quartz inclusion gold mainly exists, exists in the form of inclusion gold and fissure gold in pyrite.
自然金在矿石中呈包裹金、裂隙金、粒间金3种形式嵌布,以包裹金为主。据镜下分析结果:包裹金占61.01%,裂隙金占27.43%、粒间金占11.55%,金的粒度范围为0.2~0.005 mm,其中粗粒金(O.295~0.074mm)占14.76%,中粒金(0.074~0.037mm)占27.20%,细粒金(0.037~0.O1mm)及微粒金(<0.01mm)占58.04%。
Natural gold in the ore was covered with gold, fracture gold, gold particles between the 3 forms of cloth to cover the main gold. According to the microscopic analysis results: inclusion gold accounted for 61.01% and fissure gold accounted for 27.43%, intergranular gold representing 11.55%, gold particle size range of 0.2 ~ 0.005 mm, which accounted for 14.76% of coarse grained gold O.295 ~ 0.074mm, accounted for 27.20% grain gold (0.074 ~ 0.037mm), gold <0.01mm particles and fine gold (0.037 to 0.O1mm) accounted for 58.04%.