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.
Nonmetallic Luster. There are a number of different nonmetallic lusters. A. Vitreous. Also called glassy. Examples include quartz and tourmaline. B. Resinous. Minerals that look like resin (a little bit like the look of plastic). Examples include sulfur and sphalerite. C. Pearly. Minerals with a pearl-like, iridescent luster. Talc is a good example.