Front matter

PLATE I Frontispiece

1. DIAMOND 2. DIAMOND (Crystal) 3. DIAMOND

4. AQUAMARINE 5. EMERALD 6. AQUAMARINE

7. TOPAZ 8. EMERALD (Crystal in matrix) 9. TOPAZ

10. RUBY (Crystal) 11. SAPPHIRE 12. YELLOW SAPPHIRE (Oriental Topaz)

13. RUBY 14. SAPPHIRE (Crystal) 15. STAR-RUBY

GEM-STONES

GEM-STONES AND THEIR DISTINCTIVE CHARACTERS

BY G. F. HERBERT SMITH M.A., D.Sc. OF THE BRITISH MUSEUM (NATURAL HISTORY)

WITH MANY DIAGRAMS AND THIRTY-TWO PLATES OF WHICH THREE ARE IN COLOUR

THIRD EDITION

METHUEN & CO. LTD. 36 ESSEX STREET W.C. LONDON

First Published March 21st 1910 Second Edition June 1913 Third Edition 1919