Bradda Head boosted by 'highly encouraging' metallurgical test results
Bradda Head Lithium Limited (AIM:BHL, OTCQB:BHLIF, TSX-V:BHLI) has announced what it described as “highly encouraging” metallurgical test results on samples taken from the Jumbo exploration target at the company’s project in the San Domingo District, Arizona.
The explorer said the test results were better than expected, albeit preliminary, with contractor SGS able to produce a "sellable" Li-oxide concentrate product through a dense media separation process - with a measured head grade of 3.05% from high grade sample material, 1.03% from medium grade and 0.34% from lower grade material.
Metallurgical test work has now paused, pending further samples from the company’s newer drilling.
“To produce an 'in spec' sellable gravity concentrate reflecting over 50% recovery to the concentrate from a sample grading 1.03% Li2O on first pass test work is simply mouth watering,” executive chair Ian Stalker said in a statement.
“Gravity concentration, in this case, otherwise referred to as dense media separation, is a standard, low cost, simple process with a small, relatively non-invasive foot print.”
Stalker added: "It is the kind of process operation that is quick to design and install, and yet can deliver very attractive economic returns.
“We are therefore highly encouraged, and when the next phase of drilling at San Domingo is complete and sufficient sample material is available, we will revert quickly to SGS with a more detailed test work and study programme to further the above objective."
It comes as Bradda is delivering a second drilling programme at the San Domingo pegmatite district, where around 75% of the planned work is now complete.