John, Where is do you buy the rosin, is it bow rosin? 2009/1/10 John Delacour <JD at pianomaker.co.uk> > At 06:56 +0800 10/1/09, Bruce Browning - The Piano Tuner wrote: > > Talcum powder is the loose form of hydrated magnesium silicate, whereas >> French Chalk is calcium carbonate. >> > > Whiting, whitening, or line chalk as Ron describes it, is calcium > carbonate. French chalk is magnesium silicate whether in England or > America, as the dictionaries and any search on Google will confirm. > > JD > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090112/e2d75ab1/attachment.html>
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