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That Same Look Of Gold Ore

how to test ore or rock for gold content,sep 15, 2016 it is advisable first of all to examine the ore for visible gold and silver, the presence of which might influence the choice of a method of treatment. if no gold or native silver can be seen in the rock, take a representative sample of about 300 grams and grind it up to pass a no. 30 sieve. weigh out 250 grams and carefully pan down until most.facts about gold,gold is only 2.5 on the mohs scale of hardness - about the same as a fingernail. pure gold is so soft and malleable that a strong man can squeeze it and shape it. therefore, gold could be used by artisans around the world for as far back as time can tell. first, geologists use geology maps to look for favorable areas to explore. ore.

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