www.gem-passion.com

by gagan choudhary

Table of Contents


1. Evaluating, Buying and Assorting Rough Gemstones  1


2. Geographical Locations of Gemstones 11


3. Gemstone Species  53


4. Gemstone Simulants  89


5. Core principles for Understanding Gemstone Rough

    a. Crystallographic Features  95

    b. Physical & Optical Properties  112


6. Synthesis & Enhancement

    a. Man-Made Gem Materials  135

    b. Enhanced and Treated Gem Materials  150


7. Ready Reference Tabulations

    a. Classification - Group / Species / Variety  163

    b. Classification - Composition  172

    c. Cleavage  176

    d. Specific Gravity  177

    e. Hardness  179

    f. Crystal Systems  180

    g. Refractive Index  181

    h. Inclusions in some Specific Gemstones  184

    i. Instrumentation  187

    j. Terminology in Hindi  189


8. Reality Matters 193


9. Bibliography  201


10. Index  207