“Manufactured sapphire — a material that’s used as transparent armor on military vehicles—could become cheap enough to replace the glass display covers on mobile phones.” Quoted from the MIT press release.
Several factors work together to determine the annual value of Australia’s diamond production. The output of mining operations, the quality of the stones, world diamond prices, and the relative strength of the Australian Dollar against other currencies are major factors in the annual value.
Spinel is a gemstone that has been confused with ruby and sapphire for over 1000 years. Several of the most spectacular spinels ever discovered have been mounted in “crown jewels” and other “jewelry of significance” under the assumption that they were rubies or sapphires.
This video provides an overview of the 2013 Tucson Gem and Mineral Show – one of many mineral shows that will be held in Tucson in January and February. The VisitTucson.com website had a large listing of shows.
The-Vug.com has a large collection of photographs of interesting specimens that were on display at the 2012 Denver Gem and Mineral Show. The pink calcite specimen at right attracted a lot of attention. Check them out.
The-Vug.com is “the go to place on the web” for mineral collectors.
Cabinet ministers in Afghanistan are debating potential mineral resource legislation. They want the economic benefits of allowing foreign companies to explore and develop their resources but they are concerned about being taken advantage of.
Undisclosed synthetic diamonds and color treatments are a huge problem in the diamond trade. The Gemological Institute of America now has a low cost method to screen and document the nature of small diamonds.
The United States Geological Survey has published, Circular 1368, Development of Industrial Minerals in Colorado. This publication provides information on clay and shale, sand and gravel, silica sand, crushed stone, limestone, gypsum, lightweight aggregates, dimension stone, feldspar and mica, sulfur, barite, gemstones, fluorspar, nahcolite, titanium and zeolite.
Most people don’t realize that some amazing emeralds have been found in North Carolina. The North Carolina Museum of Natural History just received a gift of four emeralds found in Alexander County in 2011 that are worth millions of dollars.