Chemistry and whiteness of talc-bearing rocks in Helgeland, northern Norway. Appendix to report 99.068.

XRF-chemistry and whiteness for talc-bearing rocks reported in report 98.068 are described. The major element distributions are more or less typical for talc-carbonate assemblages. But some of the samples have higher CaO-content than normal, due to contents of tremolite/actinolite; some have low LOI due to sparse amounts of carbonates.