indigo copper

13 LETTERS · STARTS WITH I

indigo copper is a valid 13-letter word worth 20 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1D2I1G2O1C3O1P3P3E1R1

1 + 1 + 2 + 1 + 2 + 1 + 0 + 3 + 1 + 3 + 3 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does indigo copper mean?