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protore

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protore [′prōd‚ōr]
(mining engineering)
A primary mineral deposit which, through enrichment, can be modified to form an economic ore.
A deposit which could become economically workable if technological change occurred or prices were increased.


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The breccia matrix bears 8-10% fine grained, limonite casts and medium grained boxwork suggesting mixed massive sulfides as protore.
Iron carbonated dominate oxidized areas and pyrite is a common denominator in protore and is normally the main gold carrier.
The best grades are encountered above the base of oxidation suggesting supergene enrichment of leaner protore.
 
 
 
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