The general shape and stability of six common clastic heavy minerals of garnet, zircon, rutile, apatite, tourmaline and titanite are discussed based on their physical properties and chemistry. 摘要结合矿物物理化学特征解释了沉积岩中常见的稳定重砂矿物石榴石、锆石、金红石、磷灰石、电气石和榍石的碎屑形态和稳定性；
The Sn granites are characterized by biotite and titanite as Sn-bearing minerals, which suffured hydrothermal alteration, leading to tin leaching and subsequent crystallization of cassiterite. 前者以黑云母、榍石为典型含锡矿物，它们在流体富集阶段，经热液蚀变作用，导致锡的淋滤和结晶富集作用；
