(Table 6-4) Mk values of other heavy minerals according to grain size classes...

Other heavy mineral grains exclude opaque minerals, garnet and amphibole. For a definition/derivation of the Mk value see article.其余重矿物颗粒不包含不透明矿物、石榴石及角闪石。有关Mk值（Mk value）的定义与推导方法，请参阅相关文章。