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