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.
san fernando valley. The San Fernando Valley is one of the most diverse areas in the world. It is the northern section of Los Angeles, north of the Hollywood Hills. Much of the Valley is within Los Angeles city proper, but some independent cities include San Fernando, Glendale, Burbank, and Calabasas.