Gems on Canvas: Pigments Historically Sourced from Gem Materials
Explores the use of gem materials as pigments in works of art, from the earliest cave paintings to the modern era.
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.
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.
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.
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.
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.
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.
Pressed Amber Imitation for “Root Amber”
An examination of a beaded bracelet reveals calcite powder to enhance the imitation of natural root amber.
Gemological Characteristics of Low-Temperature “Gel-Filled” Turquoise
A report on the examination of “gel-filled” turquoise produced in Zhushan County in Hubai Province, China.
Fall 2022 G&G Available Now
Book Review: Pegmatites and Their Gem Minerals
Review of Pegmatites and Their Gem Minerals, by Michael Menzies and Jeffrey Scovil.
Book Review: Pegmatites and Their Gem Minerals
The Geographic Origin of Diamonds, Sapphire from China, and Pigments Sourced from Gem Materials
An overview of the Fall 2022 Gems & Gemology content.
Large Diamond Inclusion in Diamond
A fascinating diamond crystal inclusion displaying a transparent, ghost-like appearance is identified in a Faint green diamond.
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