News

TriStar Completes Third Phase Drilling Campaign at Castelo de Sonhos Intercepts of 29.30 m at 1.92 g/t gold and 12.85 m at 3.45 g/t gold Updates Metallurgical Testwork

July 8, 2014

 

Houston, TX - TriStar Gold Inc. (the Company) is pleased to announce the remaining and final results  from the third phase diamond drilling program at the Company’s Castelo de Sonhos Gold Project (“CDS”) in the Tapajos region of Para state, Brazil. Results have been received for the last twenty nine (29) holes drilled at the Esperança South target. In addition, two holes drilled by Barrick Gold in 1996 were added to the data-bank after they had been precisely re-located and were re- logged, re-sampled and re-assayed.

The third phase drilling program at CDS comprised 51 holes for a total of 4,110 meters. To date, 144 holes totalling 16,213 meters have been drilled at Castelo de Sonhos by TriStar.   All drilling campaigns were conducted by Layne do Brasil Ltda.

Some holes (DH-95, 98,104,110 and 112), were re-entered and deepened when initial drilling bottomed in mineralization or when expected mineralized zones were missed. This deepening of the drill holes extended some of the mineralized zones with depth and located some of the missed mineralized zones.

Mark E Jones III, President and CEO of TriStar stated: "The current drilling at Esperança South only focused on 2.75 km of the 16 km strike length of outcropping conglomerates associated with strong gold-in-soil anomaly and extensive old surface garimpeiro workings.  We will continue our efforts to expand the mineralization along this trend as well as down-dip, to test for the presence of a larger mineralized basin. The positive metallurgy and good infrastructure in a free gold environment should provide a low cost setting.” 

The table below summarizes the most significant drilling intercepts from twenty nine new holes, two resampled Barrick holes and the new intervals from five deepened holes. 

Hole Intercept (Au) From (m) To (m) Final Depth (m)
CSH-95* 1.50 m at 1.50 g/t 77.70 79.20 (open) 79.20

CSH-104

Including

29.30 m at 1.92 g/t

5.75 m @ 4.31 g/t

54.70

64.50

84.00

70.25

91.25
CSH-110

1.65 m @ 4.49 g/t

1.50 m at 1.24 g/t

2.00 m at 1.03 g/t

3.30 m at 2.05 g/t

19.80

41.00

94.00

108.50

21.45

42.50

96.00

111.80

120.05
CSH-115 1.95 m at 1.27 g/t 17.45 19.40 120.65
CSH-116

2.00 m at 2.51 g/t

2.00 m at 1.57 g/t

26.00

34.00

28.00

36.00

70.00

CSH-118

Including

11.00 m at 2.22 g/t

2.00 m at 9.25 g/t

15.00

24.00

26.00

26.00

50.20

 

 

CSH-119*

9.00 m at 1.31 g/t

1.15 m at 2.05 g/t

3.90 m at 1.45 g/t

2.95 m at 1.83 g/t

4.50

20.00

30.00

89.00

13.50

21.15

33.90

91.95 (open)

91.95
CSH-121

4.00 m at 1.08 g/t

2.58 m at 1.76 g/t

4.20

20.65

8.20

23.23

70.90
CSH-122

1.50 m at 1.64 g/t

1.95 m at 2.31 g/t

36.20

92.05

37.70

94.00

100.70

CSH-127

Including

7.20 m at 4.30 g/t

2.10 m at 11.12 g/t

93.20

98.30

100.40

100.40

109.70
CSH-128

1.75 m at 1.31 g/t

4.00 m at 1.18 g/t

29.20

91.85

30.95

95.85

104.85
CSH-130

1.50 m at 3.29 g/t

4.00 m at 3.34 g/t

37.25

76.00

38.75

80.00

100.35
CSH-131 1.80 m at 4.78 g/t 84.60 86.40 110.30
CSH-132 2.15 m at 1.19 g/t 20.30 22.45 90.75
CSH-133 5.05 m at 1.74 g/t 51.50 56.55 70.40
CSH-135 3.70 m at 1.07 g/t 37.30 41.00 80.65
CSH-137 2.00 m at 3.68 g/t 80.00 82.00 110.15
CSH-138 6.26 m at 1.08 g/t 56.74 63.00 70.80
CSH-139 2.05 m at 2.54 g/t 88.20 90.25 100.25

CSH-141

Including

Including

12.85 m at 3.45 g/t

4.80 m at 7.53 g/t

0.80 m at 38.12 g/t

32.40

33.80

37.80

45.25

38.60

38.60

60.40
CSH-142 2.00 m at 1.18 g/t 99.20 101.20 110.20

CSBG -2A

(Barrick)

2.55 m at 1.57 g/t

4.00 m at 3.47 g/t

67.50

106.00

70.05

110.00

299.20

Holes CSH-95 and CSH-119 bottomed in mineralization.

“These latest drilling results demonstrate that mineralized intercepts at CDS are as wide as 29 meters with some holes still bottoming in mineralization. In a number of holes, higher grade intervals have been intercepted as well as several multi-mineralized intervals. The more we drill, the more confident we are that Castelo de Sonhos may contain a significant mineralized system. Seventy seven (77) of the102 holes that were drilled at Esperança South were positive and this attests to a good level of continuity of the mineralization at this target”, Vice President of Exploration Elton Pereira said.

A 2,750 meter long zone of mineralization has been the subject of this drilling campaign at Esperança South and along most of its length the final drilling sections are spaced 50 meters apart with drill holes spaced at 50 meters or less in each section.

The current drill program was designed to allow the Company to provide the necessary information to the Brazilian mining authorities for conversion of an exploration license to an exploitation license.

Preliminary metallurgical testing indicates promising high recovery rates. The test shows gravity recoveries of 73% and 88.6% for size fractions of respectively 80% passing 150 microns (100 mesh) and 80% passing 53 microns (270 mesh). Through cyanidation of the gravity rejects, the recovery was increased to 95.9% and 99.6% respectively for the two size fractions. Another test was performed on column cyanide leaching on 2 mm crushed samples with an average recovery of 78.7% which could indicate the possibility of recovery by heap leaching or vat leaching.

Castelo de Sonhos is a property where gold mineralization  is hosted in proterozoic conglomerates and  quartzites  similar  to  those  encountered  at  comparable gold deposits  such  as  Jacobina  in Northeastern Brazil and Tarkwa in Ghana (West Africa).

Sampling Procedures

The recovered HQ and NQ size cores were split in half by a standard rock saw. One-half was sent to the  laboratory  in  intervals  not  greater  than  2  meters  length  and  cut  depending  on  geologic parameters. The remaining half-core was stored on site. The samples were bagged and sent from the project site to the city of Parauapebas (Carajás), where SGS-Geosol Labs has a sample preparation facility.

All samples were dried at 60°C, 100% crushed to 95% minus 3mm and homogenized. A split of 1 Kg aliquot was taken and pulverized to 95% minus 150 mesh, from where a new split of 50g aliquot was taken to be analyzed by fire assay/atomic absorption. 

The pulps were airfreighted to be assayed at SGS-Geosol lab in Vespasiano, Minas Gerais state. In addition to the laboratory quality control, TriStar has added its own certified standard check samples each  12 samples.  The  results  of  this  checking  demonstrated  an  acceptable  quality  on  sampling preparation  and  analysis,  without  any  contamination  episode  and  with  adequate  precision  and accuracy.

Mr. Rodrigo Mello, FAusIMM, a qualified person as defined in NI 43-101, has read and approved the technical portions of this release.

About TriStar:

TriStar Gold is a gold exploration company focused on high-potential properties in Brazil. In addition to Castelo de Sonhos, TriStar holds another exploration project in the Tapajós district known as the Bom Jardim Property. The Company’s  shares are listed on the TSX Venture Exchange  under the symbol TSG-V. Further information is available at  www.tristarau.com

 

For further information, please contact:

TriStar Gold Inc.
Mark Jones III
Chairman and CEO
281-579-3400
 

Neither  TSX  Venture  Exchange  nor its Regulation  Services  Provider  (as that term  is defined  in the policies  of the TSX Venture  Exchange)  accepts  responsibility  for  the  adequacy  or  accuracy  of  this  release.  No  stock  exchange,  securities commission or other regulatory authority has approved or disapproved the information contained herein.

Forward-Looking  Statements

Certain  statements  contained  in this press  release  may constitute  forward-looking  statements  under  Canadian  securities legislation  which are not historical  facts and are made pursuant  to the "safe harbour"  provisions  under the United States Private  Securities   Litigation   Reform  Act  of  1995.  Such  forward-looking   statements   are  based  upon  the  Company's reasonable expectations and business plan at the date hereof, which are subject to change depending on economic, political and  competitive  circumstances  and  contingencies.  Readers  are  cautioned  that  such  forward-looking  statements  involve known and unknown  risks, uncertainties  and other factors that may cause a change  in such assumptions  and the actual outcomes  and  estimates  to  be  materially  different  from  those  estimated  or  anticipated  future  results,  achievements  or position expressed  or implied by those forward-looking  statements.  Risks, uncertainties  and other factors that could cause the Company's  plans to change include changes in demand for and price of gold and other commodities  (such as fuel and electricity)  and currencies;  changes or disruptions  in the securities markets; legislative,  political or economic developments in Brazil; the need to obtain permits and comply with laws and regulations and other regulatory requirements;  the possibility that  actual  results  of  work  may  differ  from  projections/expectations  or  may  not  realize  the  perceived  potential  of  the company’s  projects;  risks  of accidents,  equipment  breakdowns  and  labour  disputes  or other  unanticipated  difficulties  or interruptions;  the possibility  of cost overruns  or unanticipated  expenses  in development  programs;  operating  or technical difficulties  in connection  with exploration,  mining or development  activities;  the speculative  nature of gold exploration  and development,  including the risks of diminishing quantities of grades of reserves and resources; and the risks involved in the exploration,  development  and mining business. The Company disclaims any intention or obligation to update or revise any forward-looking  statements whether as a result of new information, future events or otherwise.