Yes, SPICULE is a Scrabble word!

Letter values in Scrabble US: S 1, P 3, I 1, C 3, U 1, L 1, E 1.

Is it a valid word?

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

small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals