Glossary of Mining Terms
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L
Lamprophyre
Land/Land Holding
Lava
Layback
Leaching
Lead
Leader
Level
Lode/Deposit
London 'Good Delivery' List
Longwall
Low Grade
The amount of waste rock that must be mined to achieve a safe working angle of an open pit wall in order to avoid any dangerous landslides. see also Stripping Ratio.
About Precious Metals.com 2005