I never knew.

Papalittle

Sr. Member
Apr 17, 2013
399
264
Hardy, Nebraska
Detector(s) used
Teknetics Eurotek Pro, Fisher F2, Garrett Ace 250 Teknetics Delta4000
Primary Interest:
Metal Detecting
Never heard of it...now black hills gold i've heard of..
 

pkb

Hero Member
Feb 10, 2013
587
316
Dallas
Detector(s) used
Two Garrett AT PRO's, two Garrett pro pointers
Primary Interest:
All Treasure Hunting
black gold,Texas Tea, Jed Clampitt
 

Charlie P. (NY)

Gold Member
Feb 3, 2006
13,004
17,107
South Central Upstate NY in the foothills of the h
Detector(s) used
Minelab Musketeer Advantage Pro w/8" & 10" DD coils/Fisher F75se(Upgraded to LTD2) w/11" DD, 6.5" concentric & 9.5" NEL Sharpshooter DD coils/Sunray FX-1 Probe & F-Point/Black Widows/Rattler headphone
Primary Interest:
Metal Detecting
Texas Tea?

Gold alloyed with cobalt or chromium - but I have no idea when it was first used.

Cobalt was mixed with glass to get a blue color by the Egyptians and Romans so it has been known and experimented with for a long time.
 

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