Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems often look fairly ordinary–like rocks. It's only when they are cut and polished that they obtain the ...
Crystals and gemstones can be more than just beautiful—they can be deadly. Minerals like arsenopyrite, cinnabar, galena, and torbernite carry toxic substances like arsenic, mercury, lead ...
Take a walk down the mineralogy collection of any good natural history museum and your face will be aglow with the sparkle of minerals, crystals, and gemstones – but what’s the difference ...
The Gem and Mineral Club of Scarborough (GMCS) is a hobby club founded in 1963 and incorporated as a not-for-profit corporation in 1979. Our aims, objectives and purpose are to: * Encourage and ...
Students have shunned mining and mineral processing engineering courses ... In 2021, Kenya launched the Voi Gemology Centre, a gemstone processing facility, through which the government hoped ...
Once on the fire escape, the pair tied a rope to a pillar above one of the windows in the J.P. Morgan Hall of Gems and Minerals, says Smithsonian Magazine. Using the rope, one of the thieves ...