“…Preliminary experiments were conducted to find out whether any detectable surface alteration would be produced on pollucite upon exposure to synthetic groundwater containing (in terms of mg·dm- 3 ) 0.400 NHt, 117 Na+, 4.99 K+, 10.3 Mg 2 +, 42.6 Ca2+, 0.501 Mn2+. 2.00F-, 95.1Cl-, 252HC03, 15.0SOL 38.0 Si08, 0.100 NO;, 0.500 NOs-, 0.100 PO!-and presenting an alkalinity of pH 8.8.…”