AKA chrysoberyl, this gem produces a streak of light resembling the pupil of a certain animal when cut a certain way
The colour spectrum of Labradorite resembles the 
rainbow and Greek Iris,... [DOC] [TLE] The Curious Lore of Precious Stones - IAPSOP.com [PAR] the various ways in which precious stones have been used at different times ..... 
that the gem he is wearing produces certain results, this conviction will impress... [DOC] [TLE] Michael O'Donoghue - Gems (Their Sources, Descriptions and ... [PAR] Gems Their Sources, Descriptions and Identification.