Assertion: chalcocite | /r/HasProperty | given by kesler et al
Facets:
Source sentences:
text: Thus, the data for Au in chalcocite given by Kesler et al.  are significant, with maximum values of 4.24 ppm and 13.0 ppm reported for the chalcocite in the Batu Hijau and Skouries porphyry deposits, respectively.