Yes, FEIJOA is a Scrabble word!

Letter values in Scrabble US: F 4, E 1, I 1, J 8, O 1, A 1.

Is it a valid word?

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

South American shrub having edible greenish plumlike fruit
dark-green kiwi-sized tropical fruit with white flesh; used chiefly for jellies and preserves

Also: feijoa bush, pineapple guava.