FRANK B. WADE, B.S.
PREFACE
INTRODUCTION
CONTENTS
LESSON I HOW STONES ARE DISTINGUISHED FROM ONE ANOTHER
LESSON II REFRACTION
LESSON III DOUBLE REFRACTION
LESSON IV ABSORPTION AND DICHROISM
LESSON V SPECIFIC GRAVITY
LESSON VI SPECIFIC GRAVITY DETERMINATIONS
LESSON VII LUSTER AND OTHER REFLECTION EFFECTS
LESSON VIII HARDNESS
LESSON IX HARDNESS Continued
LESSON X DISPERSION
LESSON XI COLOR
LESSON XII COLOR Continued GREEN STONES
LESSON XIII COLOR Continued BLUE STONES
LESSON XIV COLOR Concluded PINK, PURPLE, BROWN, AND COLORLESS STONES
LESSON XV HOW TO TELL SCIENTIFIC STONES FROM NATURAL GEMS
LESSON XVI HOW TO TEST AN "UNKNOWN" GEM
LESSON XVII SUITABILITY OF STONES FOR VARIOUS TYPES OF JEWELS,
LESSON XVIII MINERAL SPECIES TO WHICH THE VARIOUS GEMS BELONG AND THE CHEMICAL COMPOSITION THEREOF
LESSON XIX THE NAMING OF PRECIOUS STONES
LESSON XX THE NAMING OF PRECIOUS STONES ( Concluded )
LESSON XXI WHERE PRECIOUS STONES ARE FOUND
LESSON XXII HOW ROUGH PRECIOUS STONES ARE CUT
LESSON XXIII HOW ROUGH PRECIOUS STONES ARE CUT AND WHAT CONSTITUTES GOOD "MAKE" Concluded
LESSON XXIV FORMS GIVEN TO PRECIOUS STONES
LESSON XXV IMITATIONS OF PRECIOUS STONES
LESSON XXVI ALTERATION OF THE COLOR OF PRECIOUS STONES
LESSON XXVII PEARLS
LESSON XXVIII CULTURED PEARLS AND IMITATIONS OF PEARLS
LESSON XXIX THE USE OF BALANCES AND THE UNIT OF WEIGHT IN USE FOR PRECIOUS STONES
LESSON XXX TARIFF LAWS ON PRECIOUS AND IMITATION STONES
BIBLIOGRAPHY
INDEX
Title: A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public
Author: Frank Bertram Wade
Language: English
Character set encoding: ISO-8859-1
By Frank B. Wade
Diamonds
A Text-Book of Precious Stones
FOR JEWELERS and THE GEM-LOVING PUBLIC
BY
