Glossary of Mining Terms
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H
Hallmark
Hanging Wall
Haulage/Haulageway
Headframe
Head Grade
Heap Leaching
Hedging
High grade/grading/grader
Hoisting
Horse
Host Rock
Hydraulic Mining
Hydrometallurgy
Hydrothermal
Hypogene
A mark or impression made on gold or silver jewellery by an authorised Assayer which states the purity of the particular item.
About Precious Metals.com 2005
