MinRD offers three series of products : MinTalc�® 97- & 97C series are made of best crude ore with guaranteed brightness and purity. MinTalc�® 92-serie is a similar quality & high brightness, but guarantee levels are lower. All these talc products consist of 95-99% talc, with small portions of chlorite and carbonate only. Again, all products are free of asbestos and silica .