Thin-Film Fluid Inclusions in Aquamarine
Oblique fiber-optic illumination of thin-film fluid inclusions in Brazilian aquamarine reveals a kaleidoscopic play of interference colors.
Diamond-Shaped Cloud in Diamond
In a delightful juxtaposition, a diamond-shaped cloud inclusion appears in the center of a 0.53 ct round brilliant diamond.
Remarkably Large Iridescent Healed Fissures Resembling Play-of-Color in Sapphire
Attractive iridescence creates a beautiful “play-of-color” effect on dendritic healed fissures in a blue sapphire.
Opal with Fluid Inclusion and Mobile Bubble
The Carlsbad laboratory recently examined a Mexican opal containing a rare fluid inclusion with a freely moving gas bubble.
Quarterly Crystal: Topaz with Phlogopite
A singly-terminated topaz from Pakistan hosts a prominent phlogopite crystal with strong dichroism and lamellar cleavage planes.
Expanded Diamond Surface Due to Radiation Staining
The author examined a 0.56 ct Fancy grayish bluish green diamond with prominent green radiation stains.
Unusual Fibrous Inclusions in Blue Opal
Mysterious fibrous inclusions displaying chatoyancy are discovered in an opal with probable Mexican origin.