海南定安富文金矿床矿石特征

从不同标高、不同品位的矿石选矿试验研究入手,论述了富文金矿矿石的物质组成、矿物成分、结构构造、金的赋存状态等。研究表明,该金矿为中型特高硫化物含金石英脉型金矿床,矿体严格受断裂裂隙控制。矿石的有用组分多样,有害杂质少,金矿物主要为自然金。主要金属矿物为黄铁矿、毒砂,同时也是主要的载金矿物;非金属矿物为石英、碳酸盐矿物。矿石多具自形、半自形、他形粒状结构,以脉状、浸染状构造为主。自然金形态为尖角粒状、角粒状、长角粒状,赋存状态以裂隙金为主,其次为粒间金,包裹金占16.9%,自然金为细粒金。矿石类型为富金银多金属硫化物含金石英脉型。

Ore Character of Fuwen Gold Deposit in Ding'an, Hainan Province

Based on ore examination tests in different levels and grades,the composision,mineral component,texture,structure and Gold occurrence of Gold ore in Fuweng are discussed.It shows that the Fuweng Gold deposit in Ding'an is a middle scale quartz-type Gold deposit with high-sulfide.The ore body is controlled strictly by the fracture.The useful composition in the ore is multiplicity,the harmful composition is lack and the major mineral is nature Gold.The major metallic minerals and also the major Gold carrier minerals are pyrite and arsenopyrite. The nonmetallic minerals are quartz and carbonate mineral.The automorphic,hypidiomorphic and xenomorphic granular textures are the main ore textures,and vein and disseminated structures are the main ore structure.The forms of nature Gold are granular and long-granular.Gold occurs mainly in the shape of fissures, the secondly in interparticles,and inclusion Gold takes only about 16.9%.The native Gold is in microsize.The major ore type is Gold-bearing quartz type with poly-metal sulfide containing abundant bullion and much.