Overview
Stage | Production |
Mine Type | Underground |
Commodities |
|
Mining Method |
- Longhole open stoping
- Cemented backfill
- Paste backfill
|
Production Start | ...  |
Mine Life | 2033 |
The second largest zinc mine in the world, the Rampura Agucha Mine stands apart as a massive world-class ore body with zinc-lead reserve grade averaging 13.4%. |
Latest News | Austmine, Vedanta partner up for ore transportation May 23, 2023 |
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Hindustan Zinc Limited (HZL) owns and operates a fully integrated zinc-lead business. HZL is one of the world's largest integrated zinc-lead producer by volume. Vedanta Limited, an India-listed susidiary of Vedanta Resources Limited, owns 64.9% of the share capital of HZL, while the Government of India remains an equity partner and holds a 29.5% stake. HZL is listed on Indian stock exchanges (NSE and BSE).
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Summary:
Rampura Agucha is a stratiform, sediment-hosted Lead Zinc deposit, occurs in Pre-Cambrian Banded Gneissic Complex and forms a part of Mangalwar complex of Bhilwara geological cycle (3.2-2.5 billion years) of Archean age and comprising of magmatites, gneisses, graphite mica schist, pegmatite and impure marble. The rocks have been subjected to polyphase deformations and high-grade metamorphism. The deposit lies in the contact zone of Mangalwar - Sandmata complex and along the major NE trending Delwara lineament and predominantly covers southeast plain of Ajmer and Bhilwara.
The deposit has been broadly domained into four discrete zones, referred to as; ‘south ore’ (zone 1); ‘core ore’ (zone 2); and ‘north ore’ (zones 3 and 4). The basis of the zones is the reasonably distinct variations in the zinc grades along strike. Furthermore, the relationship between lead and silver between the northern and southern zones shows a markedly different regression profile.
The graphite-mica-sillimanite schist hosts the economic mineralization in the Rampura Agucha deposit. The economic minerals in order of decreasing abundance along with their ranges are:
• Sphalerite (15-20%)
• Pyrite (15-18%)
• Pyrrhotite (12-14%)
• Galena (1-2%)
• Sulphosalts (0.1-0.2%)
The deposit extends over 1,550 m along strike and has now been intersected to a vertical depth of 1,100 m below surface. The horizontal thickness varies between a few metres to 80 m, ........

Mining Methods
- Longhole open stoping
- Cemented backfill
- Paste backfill
Summary:
Rampura-Agucha underground (RAUG) Mine development work commenced in year 2010 and started ore production through underground stoping operation from August 2013 onwards. As planned, Underground mine operated concurrently with the open pit mine till March 2018, and after completion of open pit operation, open pit area is being used to support underground mine operation in terms of material (ore and waste) handling, and infrastructure requirement like ventilation, dewatering, etc.
Lateral development (ramps, footwall drives and stope cross cut drives) activities in underground mine are being carried out through drilling holes in the rock by using development drill machines. Charging of holes is being carried out by conventional method with cartridge explosives and as well as mechanized method with bulk emulsion. Perimeter or pre-split techniques are also considered on case to case basis, in development drives to minimise over break and damage to surrounding rock. After drilling and blasting operation, the blasted rock materials are transported through mechanized means using appropriate capacity equipment like LHDs (Load Haul Dump) and LPDTs (Low Profile Dump Truck) / Mine trucks. Vertical development activities in mine are being carried out by conventional method like drop raise technique and also by mechanized means with raise borer machine.
Stoping
Stope blocks within ore body formed through development between upper and lower levels shall be drille ........

Source:

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Flow Sheet:
Summary:

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Reserves at March 31, 2022:
The Mineral Resources Table 16 and Table 17 are reported at a ZnEQ COG of 3.46% for the Main Zone, and a PbEQ COG of 3.68% for the Galena Zone.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
47 Mt
|
Zinc
|
11.8 %
|
5,559 kt
|
Proven & Probable
|
47 Mt
|
Lead
|
1.3 %
|
629 kt
|
Proven & Probable
|
47 Mt
|
Silver
|
44 g/t
|
67,012 koz
|
Measured & Indicated
|
10.3 Mt
|
Zinc
|
14.7 %
|
1,517 kt
|
Measured & Indicated
|
10.3 Mt
|
Lead
|
2.2 %
|
227 kt
|
Measured & Indicated
|
10.3 Mt
|
Silver
|
64 g/t
|
21,304 koz
|
Inferred
|
17.6 Mt
|
Zinc
|
6 %
|
1,060 kt
|
Inferred
|
17.6 Mt
|
Lead
|
3.6 %
|
638 kt
|
Inferred
|
17.6 Mt
|
Silver
|
97 g/t
|
55,174 koz
|
Total Resource
|
28 Mt
|
Zinc
|
9.2 %
|
2,578 kt
|
Total Resource
|
28 Mt
|
Lead
|
3.1 %
|
865 kt
|
Total Resource
|
28 Mt
|
Silver
|
85 g/t
|
76,578 koz
|
Type | Material | Diameter | Length | Description |
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