Reserves/Resources
La Parrilla Silver Mine - 43-101 Resources dated September, 2011
UNDERGROUND PROVEN AND PROBABLE RESERVES
| Mineralization | Category | Tonnes | Grade | Recoverable Silver (1) | ||||
|---|---|---|---|---|---|---|---|---|
| Type | Gold g/tonne | Silver g/tonne | Lead, % | Zinc, % | Silver Only (1) | Silver Equiv (2) | ||
| Oxides | Proven | 241,800 | 0.00 | 210.72 | 0.80 | 0.11 | 1,065,000 | 1,090,200 |
| Oxides | Probable | 895,100 | 0.06 | 210.16 | 0.18 | 0.04 | 3,931,300 | 4,024,800 |
| Sulfides | Proven | 397,800 | 0.00 | 247 | 1.71 | 0.96 | 2,595,000 | 3,025,000 |
| Sulfides | Probable | 3,727,200 | 0.01 | 195 | 1.32 | 1.87 | 19,175,700 | 24,889,100 |
| Oxides + Sulfides | Proven+Probable | 5,261,900 | 0.02 | 202 | 1.13 | 1.41 | 26,767,000 | 33,029,100 |
(1).-Recoverable Silver= Ag -Recovery (65%-oxides; 82%-sulfides)-S&R charges (Oxides=0.005%; Sulfides=0.05%); Payable Pb=39 g/t-Eq Ag; Zn = 2 g/t-Eq Ag.
(2).- Oxides = Silver(Met recov=65%)-Smelter & Ref (0.995) + Payable Gold=5 g/t-Eq Ag
(2).-Sulfides = Recoveries Ag (82%; payable 95%); Payable Pb=39 g/t-Eq Ag; Zn = 2 g/t-Eq Ag (Vacas 97.8 g/t-Eq Ag).
(*) Reserves are exclusive of Resources
OPEN PIT PROVEN AND PROBABLE RESERVES (1)
| Mineralization | Category | Tonnes | Grade | Recoverable Silver (1) | ||||
|---|---|---|---|---|---|---|---|---|
| Type | Gold g/tonne | Silver g/tonne | Lead, % | Zinc, % | Silver Only (1) | Silver Equiv (2) | ||
| Oxides | Proven | 505,600 | 0.00 | 114 | 0.00 | 0.00 | 1,196,200 | 1,277,400 |
| Oxides | Probable | 1,268,600 | 0.00 | 98 | 0.00 | 0.00 | 2,583,600 | 2,787,500 |
| Oxides | Proven + Probable | 1,774,200 | 0.00 | 102 | 0.00 | 0.00 | 3,779,800 | 4,064,900 |
(1).- Oxides = Silver(Met recov=65%)-Smelter & Ref (0.995) + Payable Gold=5g/t-Eq Ag; Cutoff = 33 g/t-Ag only.
UNDERGROUND MEASURED AND INDICATED RESOURCES
| Mineralization | Tonnes | Grade | Contained Silver "In Situ" (1) | |||||
|---|---|---|---|---|---|---|---|---|
| Type | Category | Gold g/t | Silver g/t | Lead, % | Zinc, % | Silver only (1) | Silver equiv (2) | |
| Oxides | M & I | 250,000 | 0.01 | 153 | 1.91 | 1.49 | 1,229,000 | 1,269,100 |
| Sulfides | M & I | 837,100 | 0.03 | 143 | 1.88 | 5.46 | 3,860,500 | 6,807,500 |
| TOTAL UNDERGROUND | M & I | 1,087,100 | 0.03 | 146 | 1.89 | 4.54 | 5,089,500 | 8,076,600 |
(1) Contained Silver "In Situ" only. No recoveries are considered in the Resources. Rounded totals.
(2).-Contained Silver Equivalent "In Situ"= Oxides Ag + Payable Au=5 g/t-Eq Ag. Sulfides = Payable Pb=39 g/t-Eq Ag; Zn = 2 g/t-Eq Ag (Vacas 97.8 g/t-Eq Ag).
UNDERGROUND INFERRED RESOURCES
| Mineralization | Tonnes | Grade | Contained Silver "In Situ" (1) | |||||
|---|---|---|---|---|---|---|---|---|
| Type | Category | Gold g/t | Silver g/t | Lead, % | Zinc, % | Silver only (1) | Silver equiv (2) | |
| Oxides | Inferred | 1,605,600 | 0.04 | 206 | 0.31 | 0.14 | 10,653,500 | 10,905,800 |
| Sulfides | Inferred | 6,447,600 | 0.00 | 170 | 1.26 | 1.59 | 35,105,200 | 46,033,500 |
| TOTAL UNDERGROUND | Inferred | 8,053,200 | 0.01 | 177 | 1.02 | 1.30 | 45,758,700 | 56,939,300 |
(1) Contained Silver "In Situ" only. Rounded totals. No recoveries are considered. Rounded totals.
(2).-Contained Silver Equivalent "In Situ"= Oxides Ag + Payable Au=5 g/t-Eq Ag. Sulfides = Payable Pb=39 g/t-Eq Ag; Zn = 2 g/t-Eq Ag (Vacas 97.8 g/t-Eq Ag).
OPEN PIT INFERRED RESOURCES
| Mineralization | Tonnes | Grade | Contained Silver "In Situ" (1) | |||||
|---|---|---|---|---|---|---|---|---|
| Type | Category | Gold g/t | Silver g/t | Lead, % | Zinc, % | Silver only (1) | Silver equiv (2) | |
| Oxides | Inferred | 1,293,600 | 0.00 | 99 | 0.00 | 0.00 | 4,100,400 | 4,308,300 |
| TOTAL UNDERGROUND | Inferred | 1,293,600 | 0.00 | 99 | 0.00 | 0.00 | 4,100,400 | 4,308,300 |
(1) Conatined Silver "In Situ" only. Rounded totals.
(1).-No recoveries are considered in the Resources
(2).-Contained Silver Equivalent "In Situ"= Oxides Ag + Credits Au=5 g/t-Eq Ag. Cutoff grade Ag-33g/t only.
To download the entire La Parrilla 43-101 Technical Report - Click here to view (PDF, 8.7 MB)
San Martin Silver Mine - 43-101 Resources dated January 2009.
Total Proven + Probable Mineral Reserves (Mineable Reserves) (1, 2, 3, 4, 5)
| Category | Tonnes | Grade | Metal Contained | |||
| Silver g/tonne |
Lead % |
Zinc (4) % |
Silver only oz. |
Silver (oz.) including Lead Credit |
||
| Proven Reserves (Oxides) |
527,373 | 273 | 4,636,211 | 4,805,765 | ||
| Probable Reserves (Oxides) |
243,091 | 276 | 2,154,571 | 2,232,727 | ||
| Total Proven and Probable Reserves |
770,464 | 274 | 6,790,782 | 7,038,492 | ||
Total Measured + Indicated Resources (2, 3, 5)
| Category | Tonnes | Grade | Metal Contained | |||
| Silver g/tonne |
Lead % |
Zinc (4) % |
Silver only oz. |
Silver (oz.) including Lead Credit |
||
| Measured Resources (Oxides) |
122,404 | 233 | 915,774 | 955,128 | ||
| Measured Resources (Sulfides) |
415,771 | 97 | 0.87 | 2.07 | 1,292,213 | 1,292,213 |
| Indicated Resources (Oxides) |
294,361 | 288 | 2,729,201 | 2,823,840 | ||
| Indicated Resources (Sulfides) |
670,684 | 116 | 0.94 | 1.64 | 2,498,639 | 2,498,639 |
| Total Measured and Indicated Resources (Oxides plus Sulfides) |
1,503,220 | 154 | 0.91 | 1.80 | 7,435,827 | 7,569,820 |
| Proven and Probable Reserves Plus Measured and Indicated Resources |
2,273,684 | 195 | 0.91 | 1.80 | 14,226,609 | 14,608,312 |
Total Inferred Resources (2, 3, 5)
| Category | Tonnes | Grade | Metal Contained | |||
| Silver g/tonne |
Lead % |
Zinc (4) % |
Silver only oz. |
Silver (oz.) including Lead Credit |
||
| Total Inferred Resources (Oxides plus Sulfides) |
8,200,000 | 185 | 1.40 | 1.60 | 48,900,000 | 50,037,365 |
- Estimated Reserves are exclusive of Resources.
- Cut Off estimates as 146 g/tonne Ag for oxides, and 87 g/tonne Ag for dump recovered; Ageq=Au/Pb credits= 10g/tonne Ag
- Metal prices at $708/oz-Au, $12.00/oz-Ag, $0.75/lb-Pb, $0.50/lb-Zn.
- Mine dilution is included at a minimum mining width of 2.00m. Estimates do not include mining recovery.
- Base metals, Lead and Zinc are not recovered due to low market prices.
La Encantada Silver Mine - 43-101 Resources dated January 2009.
Total Proven + Probable Mineral Reserves (Mineable Reserves) (4)
Category |
Tonnes |
Grade |
Metal Contained (3) |
|||
Silver |
Lead |
Zinc (5) |
Silver only |
Silver (oz.) including Lead Credit |
||
Proven Reserves |
683,992 |
354 |
2.23 |
0.92 |
7,777,602 |
8,261,401 |
Probable Reserves |
4,511,686 |
186 |
2.45 |
2.54 |
26,936,651 |
27,287,462 |
Total Proven + Probable Reserves |
5,195,677 |
208 |
2.42 |
2.33 |
34,714,253 |
35,548,863 |
Total Measured + Indicated Resources (4)
Category |
Tonnes |
Grade |
Metal Contained (3) |
|||
Silver |
Lead |
Zinc (5) |
Silver only |
Silver (oz.) including Lead Credit |
||
Measured Resources |
445,650 |
399 |
4.15 |
0.65 |
5,710,055 |
6,025,271 |
Indicated Resources |
4,931,103 |
156 |
1.15 |
0.87 |
24,774,263 |
27,082,017 |
Total Measured + Indicated Resources |
5,376,753 |
176 |
1.40 |
0.85 |
30,484,318 |
33,107,288 |
Total Proven and Probable Reserves plus Measured and Indicated Resources (9) |
10,572,000 |
192 |
1.90 |
1.58 |
65,199,000 |
68,700,000 |
Total Inferred Resources (1, 2, 3, 4)
Category |
Tonnes |
Grade |
Metal Contained (3) |
|||
Silver |
Lead |
Zinc(5) |
Silver only |
Silver (oz.) including Lead Credit |
||
Total Inferred Resources (5, 9) |
2,557,000 |
220 |
1.00 |
1.00 |
18,226,765 |
20,034,145 |
- Cut Off Grade (COG) estimated as 250 g/tonne Ag only; and 228g/tonne Ag eqv net of Pb credit.
- Estimated Reserves are exclusive of Resources.
- Silver equivalent includes Pb credit, at prices US$12.00/oz-Ag, US$0.75/lb-Pb. Pb credit=22 g/tonne-Ag.
- Mining dilution is included at over 2.00m width. Estimates do not include mining recovery.
- Zinc is not recovered.
- Dump stockpile is considered as Measured Resource because the average grade is below COG -- 203 g/tonne Ag only and 186 g/tonne Ag eqv however with pre-screening may be processed.
- La Morena sulphide deposit requires additional metallurgical test work to prove its economic recovery. La Encantada mill does not have an operating zinc circuit at this time.
- Tailings are included within the Indicated Resources due to required additional test work and grade below Cut-off grade - 111 g/tonne Ag.
- Rounded figures
To download the entire La Encantada 43-101 Technical Report - Click here to view (PDF 21.7MB)
Del Toro Silver Mine - 43-101 Resources estimate dated October 8, 2008
Category |
Tonnes |
Grade |
Contained Silver Eqv. Ounces |
||
Silver |
Lead |
Zinc |
|||
Measured + Indicated - Oxides |
728,444 |
194 |
2.45 |
2.71 |
2,947,000 |
Measured + Indicated - Sulphides |
649,528 |
353 |
7.20 |
7.14 |
17,996,000 |
Total Measured + Indicated Resources |
1,377,972 |
269 |
4.69 |
4.80 |
20,943,000 |
Total Inferred Resources |
1,831,738 |
306 |
5.77 |
5.94 |
35,970,000 |
- Resource estimated "in situ"
- Price considerations $12.70/oz Ag, $0.90/lb-Pb and $0.85/lb-Zn.
- Mill recovery estimated: Oxides -- Ag 65%: Sulphides -- Ag 85%, Pb 85% and Zn 80%.
- Minimum mining width -- 2.00 m.
- Rounded figures.
| La Luz Silver Project | - 43-101 Mineral Resources Estimate dated July 25, 2008 |
| Update Resource Calculation November 10, 2008 |
| Category | Grade | Metal Contained (2, 5) | |||
| Tonnes (6,7,8) |
Silver g/tonne (3,4) |
Lead % |
Zinc % |
Silver Oz. |
|
| Measured Resources (oxides) | 2,656,428 | 222 | 0.08 | 0.06 | 18,938,779 |
| Indicated Resources (sulphides) | 1,052,170 | 316 | 0.73 | 0.74 | 10,675,742 |
| Measured in Tailings | 1,403,233 | 90 | 4,075,305 | ||
| Total Measured and Indicated Resources | 5,111,831 | 205 | 0.27 | 0.25 | 33,689,826 |
Total Inferred Resources
| Category | Grade | Metal Contained (2, 5) | |||
| Tonnes | Silver g/tonne |
Lead % |
Zinc % |
Silver Oz. |
|
| Total Inferred Resources | 1,854,963 | 220 | 0.22 | 0.17 | 13,097,701 |
- Estimated are exclusive of Resources.
- Metal contained is Silver only.
- Grade capping at 605 g/t Ag for oxides and 1500 g/t Ag for sulphides.
- Cut Off Grade (COG) estimated as 100 g/tonne Ag.
- Metal contained not include credits derived from the lead and zinc.
- Mining dilution is included at over 1.50 m width. Estimates do not include mining recovery.
- The datebase for resource estimate consist of diamond drilling (surface grid 50 x 50 m-underground) and surface channel sampling.
- Method; polygons maximum radius 50 m.