- Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth’s crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth’s atmosphere.
- Haller Lake, Seattle (Wikipedia)
Haller Lake (Lushootseed: sisaɬtəb) is a small lake and neighborhood in north central Seattle, Washington, named for Theodore N. Haller, who platted the neighborhood in 1905. His father, Granville O. Haller, was one of Seattle’s early settlers, an army officer who amassed a large estate in the region.