The word amblygonite is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 23
Highest Scoring Words With Friends™ Plays In The Letters amblygonite
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Seven Letter Word Alert: (58 words)
ailment, aliment, alimony, ambient, ambling, amenity, anytime, baloney, bayonet, beaming, beating, begonia, belting, bimetal, blaming, boating, boatmen, bogyman, bogymen, bolting, elating, elation, emoting, gelatin, geminal, genital, globate, gmelina, ignoble, lambing, laytime, magneto, malting, mangily, meatily, megabit, megaton, melting, mintage, mitogen, moating, molting, montage, netmail, niobate, notable, notably, obeying, tabling, tagline, tangelo, teaming, tenably, timbale, toenail, tombing, yealing, yelming