GIA Gem Encyclopedia | Complete List Of Gemstones
GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research.
Gemological Institute Of America | All About Gemstones - GIA
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
Rocks and Minerals - GIA
What are Gems? Inclusions; Phenomena; Gemology; gem explorer; Pearls; Gem Cutting
Gem Tour of America - Gems – Mines – Museums - GIA
Screen for tourmaline, kunzite, morganite and other gems and minerals by sifting through material from the mine’s commercial operation. Jeep tours of active mining areas are also available. You can even take home a five-gallon bucket of rocks to screen at home.
Mignone Halls of Gems and Minerals - GIA
The four corners of the Mineral Hall explore the overarching scientific concepts of minerals, from their evolution and diversity to their properties and how they have been used by humans from prehistory to the present day. Adjacent to the gallery of minerals and light is the Gem Hall.
Explore the Gem Encyclopedia
This site features a comprehensive overview of gem information, starting with the GIA Gem Encyclopedia, a major new feature that highlights 21 of the most popular gemstones. Each has its own page with standout facts, information on treatments, synthetics and imitations, famous stones and a map of gem localities.
The Smithsonian Gem and Mineral Collection | Research & News
2013年11月14日 · Dedicated to the earth sciences, it houses one of the world’s largest gem and mineral collections, including such world-famous gems as the Hope diamond, Logan sapphire, and Rosser Reeves star ruby, along with countless thousands of less-famous but equally spectacular gem and mineral specimens.
GemKids
What are Gems? Inclusions; Phenomena; Gemology; gem explorer; Pearls; Gem Cutting
Fall 2024 Gems & Gemology | The Quarterly Journal of the ... - GIA
Classification of Gem Materials Using Machine Learning. Explores the application of several machine learning models to complement traditional gem classification approaches. Read More
gems and minerals. Yellow stones, for example, were supposed to cure jaundice, and green stones were believed to soothe the eyes (Kunz, 1913). As mineralogy became a science at the turn of the 19th century, color was used as a common indication in the identification of minerals. Soon, though, people discovered