Here is a large and outstanding blue halite (salt) specimen from the Intrepid Potash Mine, Carlsbad, New Mexico. This one reminds me of how drops of blue food coloring look suspended in water. The edges are sharp and pristine, the coloring excellent with some areas of striped zoning, and the specimen as a whole is undamaged. The blue color is caused by the radioactive decay of potassium in the sylvanite matrix (which this piece was removed from) around the halite. Video at the end if you swipe through the photos.
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"We knew the world would not be the same.
Few people laughed, few people cried, most people were silent.
I remembered the line from the Hindu scripture, the Bhagavad-Gita.
Vishnu is trying to persuade the Prince that he should do his duty and, to impress him, takes on his multi-armed form and says, "Now I am become Death, the destroyer of worlds."
I suppose we all thought that, one way or another." ~ Robert J. Oppenheimer