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Crush pillars (1) |
Geomechanical conditions (1) |
Impala Platinum (1) |
Merensky Reef pillars (1) |
Metallurgy (1) |
Metals (1) |
Mineralized pegmatoidal pyroxenite (1) |
Mines (1) |
Pillar behaviour (1) |
Pillar bursts (1) |
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