MRG Metals (ASX:MRQ) initiated sighter metallurgical test work on a phosphate bulk sample from phosphate target area 1, located within the Shawa carbonatite mining licenses in Zimbabwe, according to a Friday filing with the Australian bourse.
The test work will examine the efficiency of the bulk sample in producing a potentially economic concentrate grade of 30% phosphate, the filing said.
Shares fell 20% in midday trade Friday.