河南伊源玉矿床位于河南省栾川县陶湾三合村,矿体分布严格受地层层位和岩性控制,矿体出露于上元古界煤窑沟组上段白云质大理岩与辉长岩接触带中,矿体产状与原岩的层理产状基本一致。矿床规模较大,矿石矿物成分主要为透闪石,含量大于95%,莫氏硬度为5.7~6.4,玉质细腻,色泽丰富多彩,且以白玉为主,与我国最著名的新疆和田玉矿物成分相似。伊源玉易于雕刻,其雕品晶莹闪烁,形态优美,琢雕效果好,在国内外市场上竞争力较强,具有良好开发利用前景。%Abstrast:Yiyuan jade deposit locates in Taowan Sanhe village, Luanchuan county, Henan province. The ore distribution is strictly controlled by stratigraphic and lithologic characteris-tics. The orebody outcrops coal mines in upper Proterozoic upper segment Xiagou dolomitic marble in contact with gabbro zone. The orebody occurrence is basically consistent with the original rock. As a large deposit, the orebody composed mainly of tremolite more than 95%, Mohs hardness of it is 5. 7~6. 4, and jade is fine and smooth, bright and colorful, and mainly white,which is similar with ingredients like Xinjiang Hetian jade, our country's most famous jade. Yiyuan jade has strong competition in the domestic market with the feature of easy-carving, sparkling, beautiful shape and good cut carving effect, which will have good prospects for development and utilization.
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