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 Rey de Espana, 17th mission. Father Lasuen named this mission in honor of King Ferdinand III of Spain in 1797. Located 25 miles north of Los Angeles in the San Fernando Valley, the convento is the largest freestanding adobe in California, and was originally used as a hospice for travelers.