Rodinia Minerals Inc. Reports Phase II Sample Results at Diablillos With Brines Up to 1000 mg/L Lithium and 11000 mg/L Potassium

TORONTO, ONTARIO--(Marketwire - April 20, 2010) - Rodinia Minerals Inc. ("Rodinia" or the "Company") (TSX VENTURE:RM)(OTCQX:RDNAF), is pleased to report that it has received positive phase II sample results from its auger drill exploration program on its Salar de Diablillos lithium-brine project in Salta, Argentina ("Diablillos"). The Company believes the phase II results may be indicative of high concentrations of lithium and potash, and are encouraged to see results that exceed the initial sample results (see Press Release dated March 1, 2010). The phase II sample results were taken at depths between 3 and 5 metres below surface, whereas the previously reported results were taken between 1 and 3 metres below surface.

Results from the phase II sampling of brines have returned lithium ("Li") values of up to 1,000 milligrams per litre ("mg/L") and favourable magnesium ("Mg") to lithium ratios. The samples, all taken from within aquifers on the Diablillos property, averaged 895 mg/L Li with ratios of 4.44 Mg:Li, and 5.22 SO4:Li. These samples are from the aquifer that will be the focus of subsequent exploration programs and will be used to assess the feasibility of production in the future. The results represent the first batch of deep auger drilling samples currently being performed on a 300 metre by 300 metre grid over the Diablillos project. The Company expects more results over the next few months. The results from phase II aquifer sampling are summarized in the table and figure below.