Translucent Ruby Filled with Zinc Glass
Examination of a heart-shaped ruby reveals a zinc glass filler.
“Nebula” Inclusion in Ruby Beryllium-Diffused to Heal Fractures
Fingerprints resulting from a flux-assisted heating process give a purple-red ruby a unique appearance.
Characteristics of Treated Rubies from Greenland
An overview of the treatment process of ruby and pink sapphire from Greenland and its effect on inclusion scenes and chemistry.
Unusual Solid Inclusions in Flame-Fusion Ruby
Numerous natural-looking dark red solid inclusions are observed in a flame-fusion laboratory-grown ruby.
A trip to a rural Liberian diamond mining community results in a newly discovered source of corundum.
Ruby with Interesting Synthetic Overgrowth
Microscopic examination of a ruby at the Carlsbad laboratory reveals synthetic overgrowth indicative of high-temperature heat treatment.
“Electromagnetic Wave” Inclusion in Mong Hsu Ruby
Fiber-optic illumination reveals an electromagnetic wave-like pattern of particles in a ruby from Myanmar.
Extremely Rare Hellandite Inclusion Found in a Mogok Ruby
A rare inclusion is reported in ruby from the Mogok mine for the first time.
A Canary in the Ruby Mine: Low-Temperature Heat Treatment Experiments on Burmese Ruby
Documents heating experiments conducted on Burmese rubies to find useful indicators of heat treatment at temperatures below 1200°C.