再次报道了花垣铅锌矿床中黑色萤石的地质、矿物学特征。详细的研究结果表明，黑萤石是在其结晶过程中，混入有大量演化程度较高的烃类物质所造成的。它的发现同时表明：矿体位置与烃类物质富集位置是吻合的；矿床形成过程中确有有机质参与。 Again reported the geological and mineralogical characteristics of black fluorite in Huayu Pb-Zn deposit. The detailed research results show that black fluorite is caused by a large amount of hydrocarbon materials with high degree of evolution in its crystallization process. Its discovery also shows that the location of the ore body coincides with the location of hydrocarbon enrichment; and there is indeed organic matter involved in the formation of the deposit.