Volcanoes of the Rio Grande Rift
September 5, 2013 | New Mexico Bureau of Geology and Mineral Resources
The Spring issue of Lite Geology (by the New Mexico Bureau of Geology and Mineral Resources) has an article titled Volcanoes of the Rio Grande Rift, an article on volcanic hazards, another on spinel and a K-12 classroom activity on "Building a Flour Box Caldera Model".
Gemstones and Plate Tectonics
June 18, 2013 | Geology
A recent article in Geology explains how the global distributions of jadeite and ruby are strongly associated with certain types of plate boundaries.
Sapphire Mining in Madagascar
September 23, 2013 | Gemological Institute of America
The Gemological Institute of America has an article about mining sapphires from the Ilakaka-Sakaraha deposit - the world’s largest sapphire producer.
Related: Corundum - The Mineral of Sapphire and Ruby