blue lead
Definition of blue lead
: tertiary gold-bearing gravel deposits of the Sierra Nevada
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Origin and Etymology of blue lead
lead (gravel deposit)
blue lead
Definition of blue lead
1 : galena
2 : a slate-gray pigment produced by subliming lead ore with coal or coke and used especially in rust-resistant paints —called also blue basic lead sulfate, sublimed blue lead
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Origin and Etymology of blue lead
lead (metal)
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