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在各种不同成分和不同年代的侵入岩中,与同一岩石的其他暗色矿物相比,辉石的含金量是比较低的。下列岩石中辉石的平均含金量如下:超基性岩中—(0.7和4.3)·10~(-7)％,基性岩中—(8.5—17.2)·10~(-7)％,酸性岩中—4.1·10~(-7)％,花岗岩类侵入体的接触交代岩中—(6.9—7.4)·10~(-7)％。当侵入岩的辉石发生自交代绿泥石化作用时,蚀变的辉石亚种中金的平均含量减少1.5—2倍。与侵入岩中的辉石相比,花岗岩类侵入体的镁、钙夕卡岩中的辉石,金的平均含量增高到2—3倍。这一点证实金属可能是在侵入体形成过程中的流体阶段富集的。金在侵入岩和交代岩的辉石中的富集只在其热液蚀变亚种中见到(K2.2—7.2)
In intrusive rocks of various compositions and ages, the pyroxene gold content is relatively low compared to other dark-colored minerals from the same rock. The average gold content of pyroxene in the following rocks is as follows: - (0.7 and 4.3) · 10 -7% in ultrabasic rocks, - (8.5-17.2) · 10 -7% in basic rocks, -4.1 · 10 ~ (-7)% in the rocks, and the contact of granitic intrusions was - (6.9-7.4) · 10 ~ (-7)%. When pyroxenes from intrusive rocks are self-crossed for chloritization, the average content of gold in the altered pyroxene subspecies is reduced by 1.5-2 times. Compared with the pyroxenes intruded into the rocks, the average content of pyroxene and gold in granite intruded magnesia and calcium skarn increases to 2-3 times. This confirms that the metal may be enriched during the fluid phase of the invader formation. Gold is enriched in intrusive and metamorphic pyroxenes only in their hydrothermal alteration subspecies (K2.2-7.2)