** Shares of Chrysos Corporation C79.AX fall as much as 5.8% to A$7.980
** Mining technology co says co's substantial shareholder Commonwealth Scientific and Industrial Research Organisation (CSIRO) completed block trade for sale of 10.75 mln shares in co
** Following sale, CSIRO stake reduces to 9% in company, from 18.5% as per LSEG
** Near 11 mln shares change hands, 47.4x the 30-day average volume
** Stock has risen 61.9% this year, including the session's moves
(Reporting by Roshan Thomas in Bengaluru)
((Roshan.Thomas@thomsonreuters.com;))