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Bill Magee the Gem Miner
November 24, 2013 |

An interesting video about Bill Magee, a gem miner who lived and found lots of gems in southern California. (His big find – about 1 1/2 tons of morganite crystals – is at about 22:30.)

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How to Recognize Good Gemstone Faceting
March 5, 2013 | YouTube
This short video by John Dyer explains the characteristics of well-cut and poorly-cut faceted gemstones. Beautiful faceted stones are a combination of great mineralogy and great craftsmanship.

Arizona Mining Review for October
November 1, 2013 | Arizona Geological Survey on YouTube
News and events on mining in Arizona during October, 2013. ** Nyal Niemuth takes a hard look at AZ minerals industry – a lot of concern as some promising project are mothballed for lack of funds. (0:30) ** Hall Stewart of Commonwealth Silver discusses new development in one of AZ’s oldest and most productive silver properties. (8:21) ** Steve Rauzi focuses on our new AZ Oil and Gas Well viewer as a window into AZ’s subsurface and how this can inform environmental, water, minerals, oil and gas studies/exploration. (20:13)

Tribolunimescence in Quartz Video
March 31, 2013 |
Triboluminescence is a flash of light produced when a material is subjected to friction, impact or breakage. The phenomenon is also known as fractoluminescence and mechanoluminescence. Triboluminescence is common in minerals because about 50% of crystalline materials are thought to exhibit the property.

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