Eagle Star Minerals Corp.

Eagle Star Minerals Corp.

June 14, 2012 12:20 ET

Eagle Star Minerals Identifies a High Grade Phosphate Zone Associated With Rare Earth Element (REE) Mineralization at Samba, Piaui, Brazil

VANCOUVER, BRITISH COLUMBIA--(Marketwire - June 14, 2012) - Eagle Star Minerals Corp. (TSX VENTURE:EGE)(PINKSHEETS:ELGSF)(FRANKFURT:E6R) ("Eagle Star" or "the Company") is pleased to announce the identification of an area within the Samba Project that combines high grade phosphate with Rare Earth Element (REE) mineralization.

To date, the follow up sampling program at Samba helped define three areas (Samba North, Samba West and Samba South) of high potential.

The newly discovered high grade phosphate and REE zone is located within the Samba North area where a thorough analysis of the best P2O5 results (up to 26%) revealed a combined mineralization with total REE of up to 0.5%, a grade which is considered to be excellent in world class Paleoplacer REE deposits.

To view Samba concessions map please click on the following link: http://media3.marketwire.com/docs/EGE0614.pdf


The topographic pattern of the Samba North area is characterized by an elongated, north-east oriented ridge that reaches up to 250 m in elevation and has approximate dimensions of 7km by 1.5km. The excellent results obtained to date are located in the northern limit of the ridge and therefore the mineralization is open laterally along the ridge.

The rock types mapped are the purple siltstone, phosphorite layers (locally brecciated) and sandstones. The field evidence suggests a repetitive intercalation of the siltstone and sandstone, which seem to vary in thickness from 10 to 20 meters. The phosphorite layers occur within the siltstone packages and host high-grade phosphate and REE mineralization. The phosphorite layers reach up to 40cm in thickness and are found on three different topographic levels suggesting a repetitive nature. The brecciated type is probably related to lineaments (faults). Highlights of the chip sample results from the Samba North area are shown below:

Point ID AAO05 AAO06 AAO08
Sample ID 80309 80310 80313
Elev 289 274 259
P2O5 % 14.32 26.34 21.10
SiO2 % 21.70 8.70 19.40
Al2O3 % 7.49 3.46 7.58
Fe2O3 % 28.20 18.90 16.10
CaO % 16.9 34.2 26.6
MgO % 1.06 0.36 0.85
TiO2 % 0.57 0.42 0.46
Na2O % 0.22 0.53 0.48
K2O % 1.01 0.81 1.18
MnO % 0.17 0.15 0.03
TREO% 0.47 0.44 0.47
HREO% 45% 50% 46%
Ce2O3 ppm 1132 957 1121
Dy2O3 ppm 259 222 223
Er2O3 ppm 109 128 140
Eu2O3 ppm 53 41 36
Gd2O3 ppm 235 199 187
Ho2O3 ppm 43 43 43
La2O3 ppm 358 313 448
Lu2O3 ppm 8 14 16
Nd2O3 ppm 757 637 670
Pr2O3 ppm 141 117 137
Sm2O3 ppm 212 176 160
Tb2O3 ppm 39 32 31
Tm2O3 ppm 12 16 18
Y2O3 ppm 1274 1399 1323
Yb2O3 ppm 70 106 129
TREO - Total Rare Earth Oxides as %
HREO - Heavy Rare Earth Elements and % of TREO
LREEs Light REEs
*Although collected to be representative of the sampled unit, due to the nature of regional rock sampling they do not form specific widths and should be considered grab samples. Consequently, they may be to some degree selective and may not be representative of mineralized units.

The bordering area of the Samba North ridge is a siltstone with P2O5 grades of up to 5% (based on channel samples of 1 meter taken at surface from outcrops). The area is relatively flat and the mineralization is open to depth. The best channel sample results to date are listed below (REE results are pending):

*All channel samples are taken from outcropping material
SND07 51153 284 CHANNEL 0.80 SLT 4.97 58.30 11.40 6.76 7.31 3.48
SND07 51154 285 CHANNEL 1.00 SLT 5.24 59.00 8.44 12.10 7.19 2.53
SNG01 51015 326 CHANNEL 0.70 SLT_B 3.29 55.30 9.80 16.10 5.28 4.13
SBF-01 80116 212 CHANNEL 0.50 SLT_R 3.93 49.40 16.30 10.8 6.06 4.54
FDT-01A 80021 159 CHANNEL 1.20 SLT_C 2.72 47.80 17.80 11.40 4.30 5.85
STA03A 80045 196 CHANNEL 0.90 SLT_R 5.11 56.70 11.60 8.97 6.97 3.41


Detailed mapping will be conducted at the Samba North area to define the stratigraphic sequence, estimate the thickness of each rock type package and map the phosphorite layers. Additional sampling of the phosphorite layers and of the sandstone will be carried out to verify the solubility of the phosphate. Description of thin sections will define the phosphate and REE mineral bearing phases (Xenotime, Britholite, Monazite).

A total of 28 pulps were selected to run REE analysis (results are pending). The samples were chosen based on the rock type and the geochemical parameters shown in the table below:

Element Lowest Highest Average
Th(ppm) 20 641 173
Y (ppm) 40 1001 249
U (ppm) 21 452 179
P2O5 (%) 1.2 17.8 5
La (ppm) 30 181 64
Li (ppm) 10 79 24


The Samba South area is dominated by grey and purple siltstone rock types. Chip samples taken to date returned grades of up to 4.8% P2O5 (REE results are pending).

The Samba West area is dominated by the purple siltstone rock type. Phosphorite lenses in this area are seen to be more restricted however they have returned values of up to 17% P2O5 (REE results are pending).

In order to further evaluate the potential of these areas, mapping and additional sampling is required and will be carried out upon conclusion of the work program at Samba North.

Analytical work was conducted by SGS Geosol Laboratórios Ltda. in their Vespasiano facility in Brazil. SGS Geosol is an ISO certified laboratory and as part of the SGS group of laboratories is widely recognized as an expert in geochemical analysis and assaying.


The sampling program conducted over the original landmass claimed during the regional investigation was highly successful as it assisted Eagle Star in identifying the most promising areas to be detailed and evaluated by way of drilling.

In addition to confirming the presence of phosphate with samples returning high-grade results of up to 26% P2O5, the Rare Earth Elements (REE) mineralization presents an additional attractive opportunity to be developed.

World class REE deposits associated with Paleo-placers (for example the Bold Mountain in the USA and the Elliot Lake in Canada) are typically formed by consolidated and cemented rock types, similar to the ones that occur at Samba North. According to the British Geological Survey (Mineral Profiles, Rare Earth Elements, 2011), major resources of this type of deposit typically vary from 10 to 100Mt in size and average >0.1% REO in grade.

"The work performed at Samba to date has yet again delivered excellent results," commented Dr. Guimarães Campos, Eagle Star's expert on phosphate and a member of the Company's board. "In addition to proving the presence of P2O5 at potentially large volumes in Samba, we were also pleasantly surprised with the strong REE sample results. The combination of these minerals with phosphate could ultimately shape Samba into a unique mining opportunity beyond our initial expectations." Added Dr. Guimarães Campos. "We now look forward to receiving official permits from the DNPM to allow for a more detailed exploration to include drilling of the best potential areas in Samba."

John Harrop, P.Geo, FGS, of Coast Mountain Geological Ltd., a qualified person under NI 43-101, reviewed and approved the technical disclosures of this press release on behalf of the Company.

About the Company

Eagle Star Minerals Corp is a publicly listed company focused on the acquisition, exploration and development of agro-mineral properties in Brazil. Over the past two years, Eagle Star Minerals has strategically grown its' presence in Brazil and continues to focus on maximizing shareholder value by acquiring assets located in geological areas known for proven phosphate mineralization, coupled with good logistics in close proximity to agriculture.

The Company's shares are publicly traded on the TSX Venture Exchange under the symbol EGE, on the OTC Pink Sheets under the symbol ELGSF and on Frankfurt Stock Exchange under the symbol E6R.

On behalf of the Board of Directors


Eran Friedlander, President

Neither the TSX Venture Exchange Inc. nor its Regulation Service Provider (as that term is defined in the policies of the TSX Venture Exchange Inc.) accepts responsibility for the adequacy or accuracy of this press release.

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