Plagioclase is a continuous solid solution series of albite anorthite, but its crystal structure is in continuous, which can be divided into several feldspar areas with different structure and attachment.

With technics mineralogy,the technology flowsheets of lead-first zinc-second flotation and zinc raw-concentrate regrinding were studied and confirmed by the characteristic analysis of intergrowth and single separation degree detection of synthesizing open-circuit experiment.

The existence of fine intergrowth of low Fe epidote and clinoepidote in the glaucophane schist from Mulan Mountain, Hubei province has been confirmed by the analytical data from electron probe microanalysis (EPMA) and optical microscopic (OM) analysis.

The formation of the orientation adhesion and dendritic crystals of ZnO,BaTiO 3,La 2/3TiO 3 and Fe 2O 3 nanocrystallites was studied.

This paper introduces briefly the points of similarity between mineral crystals and buildings,and explicates mainly the use of crystal forms in design of external forms of buildings, such as mountain crystal-form building,beryl-form building,tourmaline-form building,twin-crystal-form building,overgrowth-form building, parallel intergrowth-form building,and inlay-form building.

This paper studies the joint-life status and last-survivor status of two column life random variables under the assumption of independent but non-identical distribution,and gets the ordering relationships of the multiple-life.

The joint-life status and the last-survivor status are two special cases.