Research Article Search Results
Fissure with Moiré Pattern in Spinel
A precipitation of an unidentified mineral creates a complex moiré pattern in a fissure of a purple spinel.
Zigzag Fingerprint in Sri Lankan Sapphire
Fiber-optic illumination reveals rectilinear zigzag-patterned films with vibrant colors in a blue sapphire.
Rainy Lakeside City in Peridot
Blade-like magnetite inclusions developed from a healed fracture in peridot resemble a dark, rainy afternoon in a lakeside city.
Heliodor with a Large Schorl Inclusion
An 8.33 ct rectangular heliodor displays two tourmaline inclusions and a thin band of fluids.
A Red Herring in a Red Garnet
Transparent crystal inclusions and gas bubbles are observed in a garnet-topped doublet.
Solid Laboratory-Grown Single-Crystal Diamond Ring
The quality and size of this 4.04 ct CVD-grown diamond ring demonstrate the advancing technology in laboratory-grown diamonds.
Blackish Green Omphacite Jade from Guatemala
A Guatemalan jade called yongchuliao has gained popularity among Chinese buyers.
Aquamarine with Zigzag Growth Line Inclusions
Zigzag lines are observed only with oblique light in a 55 ct aquamarine.
Inclusion Resembling a Gada in Diamond
An etch channel in the crown facets of a diamond resembles a mace-like weapon.
Etch Features Reveal the Morphology of Diamond
Trigons and tetragons observed in a chameleon diamond indicate both octahedral and cubic growth.
Iolite from the Thor-Odin Dome, British Columbia, Canada: Geology, Chemical Composition, Inclusions, and Cause of Chatoyancy
Reports on the geological setting and gemological properties of violet-blue gem cordierite from new deposits located in British Columbia.
Yellow Sapphire: Natural, Heat-Treated, Beryllium-Diffused, and Synthetic
Investigates the various chromophores responsible for color in four types of yellow sapphire.
