Show I Optical Phenomenon Is Discovered in Strange Mineral l Corning N N. Y Y-In Y In In this modern day when the properties properties properties prop prop- of ordinary masses of matter are seemingly completely completely completely com com- known it was was' announced announced announced an an- here that in a strange Canadian mineral a anew anew anew new phenomenon of optics had been found Scientists of the Optical Society of America heard of the battling baffling glowing glowing glow glow- ing property of a mineral mineraI known i as This mineral has been known to science since it was discovered first in Greenland back in 1906 08 on a Danish expedition O. O Ivan Lee mineralogist of Jersey Jer Jer- Jersey sey City described how Hackman ite He exhibits a beautiful violet red color when first fractured into pieces but how this color quickly passes when the fresh surface is exposed to light Mr Lees Lee's discovery is that this striking and characteristic color may be revived at will 1 if the mineral mineral min min- eral is exposed to violet ultraviolet light for a short time There are two well-known well phenomena phenomena phe which cause materials to glow in a fashion somewhat like Mr Lees Lee's new discovery They are fluorescence fluorescence flu flu- and ard phosphorescence The new-found new glowing however is nei nel nether ther of these for the color seen is different in shade from the minerals mineral's minerals minerals mineral's min min- eral's fluorescent or phosphorescent light Mr Lee analyzed with a spectroscope spectroscope spectroscope scope the elements which Hack Hack- manite contains and the then thea turned around experimentally and tried to make an artificial He succeeded In obtaining a mass or powder which shows approximately approximately the same color when exposed ex ex- posed to the ultraviolet light rays |