Post by 1dave on Nov 7, 2022 11:43:20 GMT -5
I think the greatest waste in mining is not recognizing what you have found.
As the 1849'ers slowly gave up on California, they began trying their luck in Nevada, but there was a problem.
There was some damned blue-black mud that stuck to everything and made their lives miserable!
It stuck a foot thick to their boots, clothes, shovels, picks, wheelbarrows. They hated the stuff! . . . until they had it assayed.
Silver chloride! 75% SILVER. Suddenly they loved the stuff!
HERE IN UTAH in 1898, the largest gun manufacturer in Germany sent a representative to Colorado and Utah to purchase all he could find - following a rumor that uranium and vanadium had been found here.
The miners couldn't recognize them if they bit them on their big toes. The Rep showed samples, and the first uranium rush was on.
But they ignored the niobium, tantalum, beryllium, etc. that was mixed in with it, now on the old dumps.
The More you know, the luckier you will be.
There are many different ways of looking at the elements.www.webelements.com/periodicity/density/
And different ways to look at their properties.www.webelements.com/periodicity/hardness_mineral/
The Mineralogical Properties:
Brinell - The Brinell hardness number is a number proportional to the load or test force of a hard steel ball to the calculated curved area of the indentation formed. The ball diameter is 1, 2.5, 5, or 10 mm.
Vickers: " hardness, a measure of the hardness of a material, calculated from the size of an impression produced under load by a pyramid-shaped diamond indenter."