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双王金矿是产于西秦岭泥盆系地层中的一个大型低品位角砾岩型金矿。对其主要载金矿物黄铁矿进行的标型特征研究表明,五号矿体(KT5)中黄铁矿以含金较好的{111}和{hk0}习性为主,占75%,{100}习性占25%。晶体形态分值图反映出KT5黄铁矿含金性为西高东低,有向79线以西延伸的趋势。黄铁矿热电系数变化主要集中在﹣250～250μV/℃范围内,整个矿区主要以N-P混合型黄铁矿为主,P型率在矿体西部向下有增大的趋势。头晕元素Sb、Ba从上到下为先降后增,在75线和71线间出现明显头晕反转现象,并且总体有向79线以西富集的趋势。近矿晕元素Cu、Pb、Zn由上到下有向75线以下、79线以西富集的趋势。尾晕元素Bi由上到下呈现降低的趋势,且在57～65线之间与近矿晕元素Pb有明显的叠加,指示KT5在此区间接近矿化底端。而Mo、Co元素在73～77线之间富集,且与前缘晕共存,指示深部可能有盲矿体。
Shuangwang Gold Mine is a large low-grade breccia-type gold deposit produced in the Devonian strata of the Western Qinling. The study on the standard features of its main gold-bearing pyrite shows that the pyrites in the No.5 ore body (KT5) are dominated by {111} and {hk0} with good gold content, accounting for 75% 100} habits account for 25%. The crystal morphology score chart shows that the gold content of KT5 pyrite is westward and eastward low, extending westwards to the 79th directed line. The thermoelectric coefficient of pyrite mainly concentrates in the range of -250 ~ 250μV / ℃. The main mining area is dominated by N-P mixed pyrite, and the P-type rate tends to increase downward in the western part of the ore body. The dizziness elements Sb and Ba decreased first and then increased from top to bottom, with apparent dizziness reversal between the 75th and 71th lines, and there was a general tendency toward enrichment to the west of line 79. Nearly mineral elements Cu, Pb and Zn are concentrated in the direction of 75 lines below and 79 lines west. The tail halo element Bi showed a downward trend from top to bottom, and obviously overlaps with the near-mineral halo element Pb between lines 57 and 65, indicating that KT5 approaches the mineralization bottom in this interval. However, elements Mo and Co are enriched between 73 and 77 lines and coexist with the front halo, indicating that there may be a blind ore body in the deep part.