Hidden Gems at the San Diego Natural History Museum
Each level of the vertical Hidden Gems exhibit offers a different theme at the San Diego Natural History Museum.
In Memoriam: Andrew Cody
Sapphire Beneath the Rich Black Soil of Muling, Northeastern China
A comprehensive look at the gemological features and advanced analysis of blue and fancy-color sapphire from the agricultural area of Muling, China.
The Liquids Lurking Inside Your Diamonds
Examines the variety of fluid inclusions contained within diamond, which reflect the natural processes that created and modified these gems deep within the earth’s mantle.
Color Mechanism and Spectroscopic Thermal Variation of Pink Spinel Reportedly from Kuh-i-Lal, Tajikistan
A detailed spectroscopic investigation of the color of pink spinel reportedly from the Kuh-i-Lal deposit in the Pamir Mountains of Tajikistan.
The Year of Mineralogy at the Perot Museum
The Perot Museum of Nature and Science promotes public interest in mineral studies with The Year of Mineralogy exhibit.
Methods and Challenges of Establishing the Geographic Origin of Diamonds
Examines the current available means of determining the geographic origin of gem-quality diamond, which are based largely on trace element and isotopic characteristics. For now, no method exists for determining the provenance of a random individual diamond.
The Geographic Origin of Diamonds, Sapphire from China, and Pigments Sourced from Gem Materials
Three-Rayed Asterism in Quartz
Rare optical phenomenon observed in four star quartz cabochons from Brazil.
A Zircon with Strong Photochromic Effect
Yellow Sapphires with Unstable Color
A lab in Bangkok shares study on color stability in yellow sapphire.
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