Yes, CURRAJONG is a Scrabble word!

Letter values in Scrabble US: C 3, U 1, R 1, R 1, A 1, J 8, O 1, N 1, G 2.

Is it a valid word?

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

widely distributed tree of eastern Australia yielding a tough durable fiber and soft light attractively grained wood; foliage is an important emergency food for cattle

Also: brachychiton populneus.