** Sheffield Resources SFX.AX rises 5% to a one-week high of A$0.210; set for biggest intraday pct gain since March 21

** Mineral sand developer logs record Zircon concentrate shipments in March quarter at its Thunderbird Mineral Sands Mine

** Stock sees busiest session since February 11, with ~462,518 shares traded - 3.1x the 30-day avg

** SFX gains 35.5% YTD

(Reporting by Jasmeen Ara Shaikh in Bengaluru)

((JasmeenAraIslam.Shaikh@thomsonreuters.com;))