Show THE importance OF ASSAYING there are a few characters of ore which ar are e pronounced so need in their appearance that it if is not at all difficult to deter determine mine approximately the value of their metallic contents in this list may be included galena and ana a i few varieties of lead ores n native silver ores gray copper native copper and peacock copper and ores which will pan free gold still there are other ores as rich which to all appearances are worthless with some of the fabulously rich ores of goldfield nevada it is necessary to first make fth ah assay tto sho show that the ore possesses any value whatever at bullfrog in the same county and state the talc which is so rich in its gold contents was thrown over the dump before it was ais discovered covered by a chance assay that it was the highest grade of ore to be found in the shoshone mine and in almost every camp in the west it has found that ore which was believed to be practically valueless has proven by assay test to be the best to be found in the property producing it As a matter of fact it has sometimes been eventually discovered that the ore that has for years been thrown over the dump was of more value than was the ore that was being regularly mined and shipped the trouble with almost every prospector is that he is eternally searching for son something lethig that looks good to him and it js is safe to say that he passes up ten bonanza propositions for everyone that he finds and for the reason that unless he is able to see the mineral in the rock he pays no attention to it when if he was wa sonly only in position to make determinations on fhe he ground he would be able to demonstrate the value of rock which to the eye eke gives no indication of Pos possessing metallic value it is the same way with individuals and mining companies who in the development of mining properties fall fail to make frequent assays essays and pushing along in ignorance of the true value of every character of ore or rock encountered perform work that is unnecessary and fall fail to prove up the richest portions of the properties in which they are interested instances having been known where really valuable mines have been abandoned as worthless for this cause alone it will be seen therefore how necessary it is to have assay tests made from every portion of a mine no matter how lean or starved the ore or rock may look for it is thal thai the poorest material is the best ore to be found in the mine |