The Chemistry, Properties and Tests of Precious Stones

THE STOLEN PLANET. (2nd edition.) 3s. 6d. THROUGH THE SUN IN AN AIRSHIP. 6s. THE IMMORTAL LIGHT. (2nd edition.) 6s. C. Griffin and Co., Ltd. THE AUTOBIOGRAPHY OF A PICTURE. (2nd edition.) 3s. 6d. THIS WORKADAY WORLD. (In the Press.) Henry J. Drane. PEPPER'S BOY'S PLAYBOOK OF SCIENCE. (New edition.) Now in Press, revised, re-written and re-illustrated by Dr. John Mastin. George Routledge and Sons, Ltd. ETC. ETC.
Author of Parasites of Insects, The True Analysis of Milk, Plate-Culture and Staining of Amœbæ, etc., etc.
London
E. & F. N. SPON, Limited, 57 HAYMARKET
NEW YORK
SPON & CHAMBERLAIN, 123 LIBERTY STREET
1911
Some little time ago certain London diamond merchants and wholesale dealers in precious stones made the suggestion to me to write a work on this section of mineralogy, as there did not appear to be any giving exactly the information most needed.
Finding there was a call for such a book I have written the present volume in order to meet this want, and I trust that this handbook will prove useful, not only to the expert and to those requiring certain technical information, but also to the general public, whose interest in this entrancing subject may be simply that of pleasure in the purchase, possession, or collection of precious stones, or even in the mere examination of them through the plate-glass of a jeweller's window.
JOHN MASTIN.
Totley Brook, near Sheffield. June 1911.