Grey crysstalline selenium

 
Grey selenium in glass sphere.

 
Crystals of gray Selenium.

 
Granules of amorphous selenium (4N)

 
Ingot of amorphous selenium (99.5+%)

 
Ingot of glassy selenium.

 
Red selenium.

 
Selenium rectifiers.

 
Directionally solidified grey Selenium.

 
Monoclinic Selenium crystals. Has dark red color in transmitting light.