Lindian will report a JORC resource "before mid-year", with grades reported being 50% Al2O3 or more from surface over intervals of up to 9m.
Gaoual is in north west Guinea directly adjacent to two world class bauxite projects, including Alliance Mining Commodities' advanced Koumbia pre-development asset.
Following an option deal agreed to last year, Lindian has until July 23 to decide whether to acquire up to a 75% interest in Gaoual by expenditure on the project and the issuing of shares to the vendors.
The vendors are related parties to Lindian's non-executive chairman Asimwe Kabunga.
Lindian started the quarter with just over A$1 million cash.
Earlier this month Lindian suffered a setback when a court in Malawi ruled against it in a case regarding a rare earths project. However, Lindian maintains it still has a strong case.
Shares in Lindian were up 36% to 1.5c in afternoon trade, capitalising nearly $9 million.