id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_ubqjdwldszfstjgjyjualh3miq	A. K. Ramdas	Gems: Objects of aesthetic beauty and scientific curiosity	2005	3	.pdf	application/pdf	1652	89	53	fundamental questions about the unique properties of gems: What is the composition of diamond which his interests on the many beautiful optical phenomena gems exhibit and, with his discoveries, enriched here his lifelong preoccupation with diamonds and his fascination for rubies and opals. diamond consists of carbon atoms bonded to one another, each surrounded by four nearest neighbours high crystalline symmetry provide a rational basis for the simple Raman spectrum of diamond. and bent, resulting in the high frequency and the large intensity of the Raman line. Next to diamonds, rubies have long commanded universal fascination. Gems: Objects of Aesthetic Beauty and Scientific Curiosity Gems: Objects of Aesthetic Beauty and Scientific Curiosity Gems: Objects of Aesthetic Beauty and Scientific Curiosity examination of the iridescence and structural studies exploiting optical microscopy and X-ray diffraction, they conjectured that iridescent opal is a stratified medium with alternating layers of two distinct	./cache/work_ubqjdwldszfstjgjyjualh3miq.pdf	./txt/work_ubqjdwldszfstjgjyjualh3miq.txt