Consumer Guides eBook - Precious Stones - HOW TO TELL SCIENTIFIC STONES FROM NATURAL GEMS...

by Self Improvement

Overview

Precious Stones for Jewelers and the Gem - Loving Public

BECAUSE of the rapid increase in knowledge about precious stones on the part of the buying public, it has become necessary for the gem merchant and his clerks and salesmen to know at least as much about the subject of gemology as their better informed customers are likely to know ..

Just take a look at what is covered in this eBook:

=> HOW STONES ARE DISTINGUISHED FROM ONE ANOTHER

=> REFRACTION

=> DOUBLE REFRACTION

=> ABSORPTION AND DICHROISM

=> SPECIFIC GRAVITY

=> SPECIFIC GRAVITY DETERMINATIONS

=> LUSTER AND OTHER REFLECTION EFFECTS

=> HARDNESS

=> HARDNESS (Continued)

=> DISPERSION

=> COLOR

=> COLOR (Continued)

=> COLOR (Continued)

=> COLOR (Concluded)

=> HOW TO TELL SCIENTIFIC STONES FROM NATURAL GEMS

=> HOW TO TEST AN "UNKNOWN" GEM

Product Details

BN ID:	2940013935433
Publisher:	colin lian
Publication date:	11/17/2011
Sold by:	Barnes & Noble
Format:	eBook
Pages:	104
Sales rank:	747,753
File size:	2 MB