Changning jade, a new member of jade family, occurs in Changning county, Hunan and mineralogically it consists of diopside, very fine in grain size, homogeneous in texture, bright and hard.
常宁玉是产于湖南省常宁县的一种玉石新品种，属透辉石质玉。
Changning jade, a new member of jade family, occurs in Changning county, Hunan and mineralogically it consists of diopside, very fine in grain size, homogeneous in texture, bright and hard.
常宁玉是产于湖南省常宁县的一种玉石新品种，属透辉石质玉。
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