rubellite

The red variety of tourmaline, used as a gemstone.

A red or pink variety of tourmalin found on the island of Elba, in Siberia, in Brazil, and at Paris in Maine. The ruby in the imperial crown of Russia is believed to be a rubellite.

A variety of tourmaline varying in color from a pale rose to a deep ruby, and containing lithium.

a red to violet variety of tourmaline used as a gemstone