The Benefits Of Employee Training and Development. Employee training and development is an organizational activity in human resource management aimed at impacting the employees with skills aimed at bettering the performance of both the individual and the organization.
Figure 4. (a) Diamond has an adamantine luster. (b) Quartz is not sparkly and has a vitreous, or glassy, luster. (c) Sulfur reflects less light than quartz, so it has a resinous luster.
Some words to describe luster are: 1  DULL / EARTHY - very dull, mainly minerals that are porous eg kaolinite, orthoclase. 2  WAXY - like the surface of a candle, like wax paper eg opal, chalcedony.  GREASY / OILY - a little bit shiny eg nephaline.