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The grade is simply the proportion of rock that consists of payable. material, i.e: recoverable metals of value such as Ni, Cu. Co. Because different ores ... www.amebc.net/docs/71919F0D659B770F.pdf - Similar pages
pay stands for payable
Eman Sawan Egypt Local time: 17:44 Native speaker of: Arabic
Historic work further concludes that while none of the metals is present in the shales in sufficiently high concentrations to be a “pay” metal by itself, the metals collectively represent sufficient in-situ value on a combined basis to place the two shales, especially the Second White Speckled Shale, within reach of economic viability.
Arnold007 Canada Local time: 11:44 Specializes in field Native speaker of: French PRO pts in category: 102