Yes, talc is a Scrabble word!
...and is worth 6 points in Scrabble, and 8 points in Words with Friends
talc
Verb
1. Apply talcum powder to (one's body)
Noun
1. A fine grained mineral having a soft soapy feel and consisting of hydrated magnesium silicate; used in a variety of products including talcum powder
What Scrabble words can I make with the letters in talc?
3 Letter Words
2 Letter Words