Fall 2013
- $15.00
The Museum of London's Extraordinary Cheapside Hoard
Robert Weldon and Cathleen Jonathan
On the Origin of Digit Patterns in Gem Opal
Benjamin Rondeau, Jean-Pierre Gauthier, Francesco Mazzero, Emmanuel Fritsch, Yves Bodeur, and Boris Chauvire
Agates from Sidi Rahal, Morocco: Gemological Characteristics and Proposed Origin
Magdalena Dumanska-Słowik, Lucyna Natkaniec-Nowak, Aleksandra Wesełucha-Birczyńska, Adam Gaweł, Marek Lankosz, and Paweł Wróbel
Useful Visual Clue Indicating Corundum Heat Treatment
John I. Koivula
Three Occurrences of Oregon Sunstone
Duncan Pay, Robert Weldon, Shane McClure, and Kevin Schumacher
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
Usually ships in 3-5 business days.
SKU: 4301304
Robert Weldon and Cathleen Jonathan
On the Origin of Digit Patterns in Gem Opal
Benjamin Rondeau, Jean-Pierre Gauthier, Francesco Mazzero, Emmanuel Fritsch, Yves Bodeur, and Boris Chauvire
Agates from Sidi Rahal, Morocco: Gemological Characteristics and Proposed Origin
Magdalena Dumanska-Słowik, Lucyna Natkaniec-Nowak, Aleksandra Wesełucha-Birczyńska, Adam Gaweł, Marek Lankosz, and Paweł Wróbel
Useful Visual Clue Indicating Corundum Heat Treatment
John I. Koivula
Three Occurrences of Oregon Sunstone
Duncan Pay, Robert Weldon, Shane McClure, and Kevin Schumacher
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
Usually ships in 3-5 business days.
SKU: 4301304
