I'd look at some of the radioactive heavy elements. For example Berkelium, Californium, and Americium.
A city or town don't exist but if you want retain the names Californium and Lawrencium.
Berkellum
Berkelium has been named after Berkeley,CA
The elements berkelium and californium are named after the University of California. Note that the latter element is named for the state of California as well as the University itself.
Element named after a US state: Californium. This is the only element named after a US state. But, there is also Americium. Americium is named after America.
Californium is a metallic element named after California.
Cf in the periodic table is named after the University of California, Berkeley, where the element was first discovered in 1950. The element californium was named after the state of California in the United States where the university is located.
The element Silicon
Well, there's Berkelium, which was named after the city of Berkeley, CA (indirectly... it was actually named after the University of California at Berkeley, which was itself named after the city). That's about as close as it gets.
There is an Arkansas City in Califormia near Oakland, California.
The city is named after Washington Irving's book Tales of the Alhambra.
Burbank