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  • Hornfels - Mining Fundamentals
    Article - 6 Jun 2014
    Hornfels are a type of metamorphic rocks having a dense, compact and fine grained structure. The formation of these rocks is the result of contact metamorphism of shales and basalts.
  • Hematite - Mining Fundamentals
    Article - 6 Jun 2014
    Hematite is a heavy and relatively hard ferric oxide mineral which crystallizes in a rhombohedral system. The mineral has derived its name from the Greek word for blood as it often observed in red...
  • Heap Leaching - Mining Fundamentals
    Article - 23 Apr 2014
    Heap leaching is an industrial mining process of separating precious metals, copper and other minerals from ores. It involves a series of chemical processes through which the mineral ores are piled in...
  • Gyratory Crusher - Mining Fundamentals
    Article - 23 Apr 2014
    A gyratory crusher is an ore processing machine that crushes the ore between an eccentrically mounted cone and a crushing throat that is fixed. In mining, the most important criteria for effective...
  • Grab Sample - Mining Fundamentals
    Article - 29 Apr 2014
    A grab sample is a sample taken from a rock outcrop that is being assessed for the presence of valuable elements. While taking the grab sample the best looking rock deposit is chosen. The grab sample...
  • Greenstone Belt - Mining Fundamentals
    Article - 29 Apr 2014
    Greenstone belts are geographical zones that are made up of metamorphosed sedimentary and volcanic rocks that are commonly found in continental shields. Greenstone belts are characterized by varying...
  • Gossan - Mining Fundamentals
    Article - 29 Apr 2014
    Gossan refers to the rust-colored capping or staining of a mineral deposit, which is mostly formed due to the oxidation or alteration of iron sulfides.
  • Glacial Striations - Mining Fundamentals
    Article - 6 Jun 2014
    Glacial striations are lines or scratches that occur on a smooth rock surface caused by glacial abrasion.
  • Geophysical Survey - Mining Fundamentals
    Article - 6 Jun 2014
    Geophysical survey is a method of collecting information about the physical properties of the rocks and sediments. This method is also increasingly applied for mineral exploration activities.
  • Gangue - Mining Fundamentals
    Article - 29 Apr 2014
    Gangue refers to substances that are extracted along with desired minerals or ores due to their close association, and are considered commercially worthless in mining.

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