Margot in Nautical Flags. French names have similar origins to those of other old-world European nations. They are often derivations of place names or trade names, or have their basis in history, mythology, religion or nature. They may also be created names.
Umber is not one precise color, but a range of different colors, from medium to dark, from yellowish to reddish to grayish. The color of the natural earth depends upon the amount of iron oxide and manganese in the clay.
1 Erbium oxide has a pink color, and is sometimes used as a colorant for glass, cubic zirconia and porcelain. 2  The glass is then often used in sunglasses and cheap jewelry.rbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68.