26 



Baskerville and Kunz — Kunzite 



transparent line passed from one wire to the other ; in reality, 

 as if the two elongated cones crossed each other, the line of 

 the path being transparent at the sides, whereas the rest of the 

 crystals appeared translucent. After the exposure of two 

 minutes, they were laid upon photographic plates and in tive 

 minutes produced a fine auto-print, herewith shown. The 

 crystals continued to glow for forty-live minutes. 



Figure 1. — Self-print made by the exposure of crystal of kunzite to the 

 Eoentgen rays for five minutes. Note the frond-like emanations at the ends 

 of the crystal. — Eeduced one-half. 



Figure 2. — Auto-print of crystal of kunzite luminescence induced by an 

 oscillating current obtained from a Helmholtz machine. — Reduced one-half. 



When a cut gem is suspended between the two poles, it 

 becomes an intense orange-pink color, glowing with wonderful 

 brilliancy. The discharge seemed as if it would tear the gem 

 asunder, although actually it was unaffected. 



3. Ultra-violet rays. — These invisible rays, produced by 

 sparking a high voltage current between iron terminals, caused 

 kunzite, white, pink or lilac, to phosphoresce for some minutes. 

 The white responded most readily. 



4. Roentgen, or X-rays. — All forms of kunzite become 



