EOSC 114 Lecture Notes - Lecture 32: Crystal Structure, Irradiation, Radium

• School: UBC
• Department: Earth and Ocean Sciences
• Course: EOSC 114
• Professor: John Sherman

Document Summary

Temperature is a strong determining factor on morphology. Transport while on earth"s surface (abrasion) more minor. Identify common diamond treatments and methods of creating synthetic diamonds. Treatments improve shine, polish, aesthetics, colour, and value. Alters combination states of nitrogen impurities and heal lattice vacancies. Removal of brown body colour, removing/enhancing existing yellow colour. Used for highly-flawed stones to hide internal imperfections. Irradiation: create vacancies within atomic lattice of diamond to generate colour centres that can absorb light. Expose stones to radium, which imparted a blueish-green colouration into the stone.