|
Lotus Gemology Publications • Substance
|
|
Hits: 18792
|
|
Madagascar Sapphire: Low-Temperature Heat Treatment Experiments
|
by E. Billie Hughes and Rosey Perkins |
Hits: 657
|
|
Madagascar Ruby & Sapphire | Ruby & Sapphire: A Gemologist's Guide
|
by Richard W. Hughes, Wimon Manorotkul & E. Billie Hughes |
Hits: 1048
|
|
Ruby & Sapphire (Corundum) Inclusions • The Lotus Gemology Crystal Registry
|
by E. Billie Hughes and Richard W. Hughes |
Hits: 359
|
|
Spinel Inclusions • An Exercise in Aesthetics
|
by E. Billie Hughes, John I. Koivula, Wimon Manorotkul, Nathan Renfro and Richard W. Hughes |
Hits: 2866
|
|
Gem Testing Labs • Tips on Choosing a Colored Gem Testing Lab • Lotus Gemology
|
by Lotus Gemology |
Hits: 1085
|
|
Laos Sapphires | Laos – Land of a Million Elephants... & Sapphires
|
by Richard W. Hughes, Auslan Ishmael, Flavie Isatelle & Peter Wang |
Hits: 1181
|
|
Colored Stone Grading • A Heretic's Guide
|
by Richard W. Hughes, with E. Billie Hughes & Wimon Manorotkul |
Hits: 5650
|
|
Six-Rayed Star in Sapphire from Myanmar
|
by E. Billie Hughes |
Hits: 2687
|
|
Pressure Heated Sapphire • Squeezing Sapphire • Corundums treated with high temperatures and low pressure (HT+P)
|
by [see below for authors] |
Hits: 7304
|
