Depending upon the conditions, either nucleation or growth may be predominant over the other, and as a result, crystals with different sizes and shapes are obtained (Control of crystal size and shape constitutes one of the main challenges in industrial manufacturing, such as for pharmaceuticals).
For the region, see San Fernando Valley. San Fernando is a city located in the San Fernando Valley, in the northwestern region of Los Angeles County, California. It is completely surrounded by the City of Los Angeles.
U.S. Census Bureau. The San Fernando Valley is a geographical area that is not defined by jurisdictional boundaries. As such, no data exist for the Valley as an entity. The San Fernando Valley Economic Research Center collects Valley-specific data from a wide variety of primary sources and we sincerely appreciate their efforts and cooperation.