Overview
Status | Inactive / Suspended |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Processing |
- Agitated tank (VAT) leaching
- Merrill–Crowe
- Cyanide (reagent)
|
Commercial production at the former Monique mine began in February 2013 and the mine ceased operations in January 2015, after producing 51,488 ounces of gold. |
Latest News | Monarch Gold Completes Sale of Monique Property to Probe Metals March 24, 2020 |
Source:
March 24, 2020, Monarch Gold Corp. has completed the previously announced sale of its Monique property to Probe Metals Inc.
Summary:
The Monique mineralized zones have been defined from surface to a depth of 400 m (in the G and J zones). Their orientation varies from 270° to 300°, with a dip of 55° to 80° to the North. They vary in width from less than 1 m to almost 20 m (G Zone). Most of the known gold zones are still open at depth. Laterally, they extend over a few hundred metres.
The G and J mineralized zones, which were mined with the open pit, lie on mining lease 1012, as do the A and B mineralized zones.
The Monique property is characterized by a volcanic sequence belonging to the Jacola Formation of the Malartic Group. The general orientation of the units is N270°E to N292°E, with a steep dip to the north.
Two main volcanic domains are interpreted on the property, the north domain and the south domain. The first one is composed mainly of basalts with interlayered ultramafic flows, while the second one is formed of andesitic flows and pyroclastics. Units of both domains are cut by dioritic dykes and felsic dykes. Several deformation zones cross the property in an east-west direction, roughly parallel to the stratigraphy. They are characterized by the development of a strong foliation with quartz-carbonate veining. Variable alteration in chlorite, silica, sericite and albite is associated with these deformations zones.
Several fault zones with gouge can be seen in place, however, they are not particularly associated to the mineralization events.
Gold mineralization on the Monique property is mainly associated with three deformation zones that cross the property with an orientation of 280° and a 75° - 80° dip to the north. Gold mineralization is defined by a network of quartz/tourmaline/carbonate veins and veinlets, measuring 1 cm to 10 cm, with disseminated sulphides in the altered wall rocks. Free gold is frequently observed in the veins. A total of 12 gold zones have been observed on the property over the years, the most promising being the A, B, G and J zones.
The mineralized zones have been defined from surface to a depth of 400 m (in the G and J zones). They vary in width from less than 1 m to almost 20 m. Mineralized lenses extend laterally over few hundred metres. Gold is generally associated with 1% to 5% finely disseminated pyrite, and visible gold is common in the quartz and carbonate veins and veinlets. Albite and fuschite alteration are locally observed.
Summary:
Ore and waste separation was done using blast hole assay results. On the first 2 benches, almost all the blast hole cuttings were sampled (average of 7 kg per sample) and sent to ALS laboratory in Val d’Or, Quebec. Areas of ore and waste are delineated using the gold assay results and a cut-off of 0.85 g/t gold. As much as possible, ore and waste blocks were blasted separately in order to reduce dilution. A capping of 8 g/t of gold has been used for blast hole results. On the other benches, blastholes were sampled only in the mineralized areas.
Processing
- Agitated tank (VAT) leaching
- Merrill–Crowe
- Cyanide (reagent)
Source:
Summary:
Open pit mining was completed at the end of January 2015. Stockpiled ore was processed at the Camflo Mill in 2015.
The Camflo Mill, with a rated capacity of 1,200 tonnes per day, is a Merrill-Crow conventional type mill with circuits for crushing, grinding, gold cyanidation and precipitation using zinc powder.
Recoveries & Grades:
Commodity | Parameter | 2016 | 2015 | 2014 | 2013 |
Gold
|
Recovery Rate, %
| ......  | ......  | ......  | ......  |
Gold
|
Head Grade, g/t
| 2.31 | 2.37 | 2.71 | 2.35 |
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Production:
Commodity | Units | 2016 | 2015 | 2014 | 2013 |
Gold
|
oz
| 1,165 | 16,580 | 23,675 | 4,274 |
All production numbers are expressed as metal in doré.
Operational Metrics:
Metrics | 2016 | 2015 | 2014 | 2013 |
Tonnes processed
| 16,063 t | | | |
Tonnes milled
| | 224,673 t | 283,009 t | 60,536 t |
Reserves at July 25, 2019:
Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
Inferred
|
In-Situ (OP)
|
5,583,200 t
|
Gold
|
1.71 g/t
|
307,000 oz
|
Inferred
|
In-Situ (UG)
|
3,543,300 t
|
Gold
|
3.11 g/t
|
354,400 oz
|
Inferred
|
Total
|
9,126,500 t
|
Gold
|
2.25 g/t
|
661,400 oz
|
Commodity Production Costs:
| Commodity | Units | 2016 | 2015 | 2014 | 2013 |
Cash costs (sold)
|
Gold
|
CAD
|
|
|
|
1,290 / oz
|
Cash costs (sold)
|
Gold
|
CAD
|
1,182 / oz†
|
779 / oz†
|
907 / oz†
|
|
All-in sustaining costs (sold)
|
Gold
|
CAD
|
|
|
|
2,304 / oz
|
All-in sustaining costs (sold)
|
Gold
|
CAD
|
1,186 / oz†
|
795 / oz†
|
955 / oz†
|
|
† Net of By-Product.
Financials:
| Units | 2015 | 2014 | 2013 |
Revenue
|
M CAD
|
26.3
|
32.7
|
3.96
|
Mine Management:
Job Title | Name | Profile | Ref. Date |
.......................
|
.......................
|
|
Jan 22, 2020
|
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