Corralling Those Pesky Platinum Group Metals
June 2005 by Charles L. ButlerSome assay beads disappear, collapse, hide under the surface, or spread out flat while being cupelled, just as the last tiny bit of liquid litharge is driven off. This is especially true of platinum, iridium and osmium, when attempting to re-bead the filtered residue from a parted bead.
Hardrock mining in the US has been hit by a tragic streak of mining accidents in recent months.
I noticed an area which I could crawl through to keep going in a straight line. I got about three feet into the pile and Bob yelled for me to stop…
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
My first encounter with rocks and minerals started as a young child in the company of my siblings investigating the rocky mounds placed around the Australian coastline to help prevent erosion just north of Brisbane...
Thomas Tierney has been a long-time subscriber to ICMJ’s Prospecting and Mining Journal and has read about the many battles between miners and overzealous regulators. Then he faced his own battle.
Q: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.
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