Posthuman Blues

3-Billion Year Old Manufactured Spheroids?

"At least 200 have been found, and extracted out of deep rock at the Wonderstone Silver Mine in South Africa, averaging 1-4 inches in dia. and composed of a nickel-steel alloy that doesn't occur naturally."

That's quite a claim, to say the least. Here's the mainstream verdict from a geologist and fellow SPSR member:

"They are naturally formed in marine sediments such as (carbon-rich) shales, but also found in some volcanic and mafic rocks. And very very common in mines world wide - because pyrite (iron sulfide) is a tracer for basemetal (coper, lead, zinc) and gold deposits."

That makes sense but fails to explain the grooves . . . And if they're so common, why the special attention lavished on the South African specimens?