The word vermiculites 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: 24
Highest Scoring Words With Friends™ Play In The Letters vermiculites
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Seven Letter Word Alert: (68 words)
ceriums, cluster, cultism, culvert, cursive, elicits, elitism, elusive, emetics, emulsic, evilest, itemise, lecture, leisure, leucism, leucite, limiter, lucites, lustier, melters, mercies, metrics, metrise, miscite, misrule, mistier, mustier, recites, recluse, rectums, reemits, relives, remelts, reslice, resmelt, restive, retiles, retimes, reviles, revisit, revuist, revulse, rivulet, rutiles, service, servile, servlet, sievert, siltier, slimier, sluicer, smelter, smilier, sterile, stimuli, stivier, surveil, svelter, tumeric, tumesce, utilise, uveitis, veilers, veilier, vermeil, vesicle, victims, virtues