How can you test if gold is pure? Some methods are more destructive than others
When it comes to gold, how pure is pure? And how does anybody know?
Analytical Chemistry
Mar 7, 2023
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News tagged with gold mining
Related topics:
mercury
Viewpoint: Gold mining is one of the world's most destructive and unnecessary industries—here's how to end it
The 16th-century King Ferdinand of Spain sent his subjects abroad with the command: "Get gold, humanely if possible, but at all hazards, get gold." His statement rings true today. Gold remains one of the world's most expensive ...
Environment
Feb 14, 2023
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39
Newly-named species of tree-dwelling snakes threatened by mining
Five new tree-dwelling snake species were discovered in the jungles of Ecuador, Colombia, and Panama. Conservationists Leonardo DiCaprio, Brian Sheth, Re:wild, and Nature and Culture International chose the names for three ...
Plants & Animals
Jan 27, 2023
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49
Can critical metals for renewable energy products be found in existing mines? New research says yes
Ramping up renewable energy products will require a range of critical metals. One of these elements, tellurium, is gaining in popularity for use in photovoltaics, or solar panels. As global demand for solar panels continues ...
Earth Sciences
Oct 11, 2022
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15
Can gold mining be more sustainable?
In a review paper recently published in the journal Land Degradation and Development, Shrabya Timsina and Nora Hardy focused on the effects of surface gold mining in tropical regions, a growing environmental concern in recent ...
Earth Sciences
Sep 28, 2022
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2
New approach to exposing illegal and informal mercury trading
The Minamata Convention (MC) aims to restrict and limit the trading of mercury, a highly toxic pollutant. While most countries involved in artisanal and small-scale gold mining (ASGM), the biggest source of mercury pollution, ...
Mathematics
Jul 19, 2022
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20
A collapsing glacier in Kyrgyzstan sends worrying signal to Central Asia
On July 8, a glacier collapsed in the mountains of the Issyk-Kul region of Kyrgyzstan, triggering an avalanche. There was little knowledge of this incident for two days, until it was publicized by foreign tourists who witnessed ...
Environment
Jul 14, 2022
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22
Non-toxic technology extracts more gold from ore
Study shows new chloride-based process recovers 84% of gold compared to the 64% recovered with traditional methods.
Materials Science
Oct 1, 2021
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192
Clues from soured milk reveal how gold veins form
For decades scientists have been puzzled by the formation of rare hyper-enriched gold deposits in places like Ballarat in Australia, Serra Palada in Brazil, and Red Lake in Ontario. While such deposits typically form over ...
Earth Sciences
May 21, 2021
4
28
Why ocean pollution is a clear danger to human health
Ocean pollution is widespread, worsening, and poses a clear and present danger to human health and wellbeing. But the extent of this danger has not been widely comprehended—until now. Our recent study provides the first ...
Environment
Feb 1, 2021
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