พลอยสีส้ม (Orange Sapphire)
Sumalee Thepsoparn
SGS : The School of Gemological Sciences (Thailand) (2004)
In Collection
#690
9*
Science
Corundum, Synthetics/Treatments
Hardcover 9789749273395
Thai
Adherence to understanding in the past leads to a misunderstanding of "new way" of gems heat treatment. This book clearly explains the old process of gems enhancement for better color, treatment to create phenomenon, heat treatment to add other colors, comparative images of stones undergone heat treatment - before and after, new way of heat treatment for interesting new color shade.
Product Details
Edition 1st
No. of Pages 47
Height x Width 300 x 215  mm
Personal Details
Read It Yes
Store SGS
Location A 9
Purchase Price 36.25 CHF
Current Value 35.25 CHF
Purchase Date janvier 2012
Condition First hand
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