The most beautiful are those made of fluor-spar, the celebrated blue john Mine providing the most beautiful specimens.
Attention is here drawn to a magnificent vase of the blue john spar, which is said to be the largest in existence.
blue john consulted his medicine, or talismanic charm, such as every chief keeps in his lodge as a supernatural protection.
Twenty-nine of the choicest warriors instantly volunteered to follow blue john in this hazardous enterprise.
The opening of their mine has been called blue john Gap, a clean-cut arch in the rock, the mouth all overgrown with bushes.
The day was clear and bright; and blue john anticipated that the skies would be propitious.
There are also spar works where the fluor-spar, or blue john, is wrought into a variety of useful and ornamental articles.
I had not told anyone that I proposed to come to the blue john mine, and it was unlikely that a search party would come after me.