The Chemistry, Properties and Tests of Precious Stones

by John Mastin

CONTENTS

	CHAPTER	PAGE
I	Introductory	[1]
II	The Origin of Precious Stones	[7]
III	Physical Properties—(A) Crystalline Structure	[13]
IV	" " (B) Cleavage	[19]
V	" " (C) Light	[26]
VI	" " (D) Colour	[32]
VII	" " (E) Hardness	[39]
VIII	" " (F) Specific Gravity	[45]
IX	" " (G) Heat	[52]
X	" " (H) Magnetic and Electric Influences	[57]
XI	The Cutting of Precious Stones	[62]
XII	Imitations, and Some of the Tests of Precious Stones	[70]
XIII	Various Precious Stones	[80]
XIV	" " " (continued)	[88]
XV	" " " "	[98]

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