The amethystine veil had not lifted, and no smoke came from the chimney.
"The Eye of Dread"
Payne Erskine
It had been given the name of Crystal Palace Mountain because it was crested with an outcropping of amethystine quartz-crystal structures in natural pillars, domes, arches, spires.
"Eight Keys to Eden"
Mark Irvin Clifton
Major Day had come upon a tree whose beautifully smooth bark was dappled with patches of brilliant amethystine fungus, a portion of which he had carefully slipped off with a penknife, for the purpose of examining the peculiarities of its structure under the glass.
"The Star-Gazers"
George Manville Fenn