Yes, AUREOLE is a Scrabble word!

Letter values in Scrabble US: A 1, U 1, R 1, E 1, O 1, L 1, E 1.

Is it a valid word?

AUREOLE is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse
an indication of radiant light drawn around the head of a saint