Yes, SCAPULARY is a Scrabble word!

Letter values in Scrabble US: S 1, C 3, A 1, P 3, U 1, L 1, A 1, R 1, Y 4.

Is it a valid word?

SCAPULARY is a valid word in the official Scrabble dictionary (US) and the UK Scrabble Dictionary, but not in Words with Friends (ENABLE).

garment consisting of a long wide piece of woolen cloth worn over the shoulders with an opening for the head; part of a monastic habit