OK, I found a better reference.
"Between 1912 and 1922 the U. S. produced more than 170 grams. In those early days the price ranged around $110,000 per gram. "
Here : Radium - TIME
If that won't persuade you Aromaz , then I won't try further
"Between 1912 and 1922 the U. S. produced more than 170 grams. In those early days the price ranged around $110,000 per gram. "
Here : Radium - TIME
If that won't persuade you Aromaz , then I won't try further
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