“But 2,000 years underwater didn’t do the #Antikythera mechanism many favors. Seawater rich with salts and other chemical compounds reacted with the high amount of copper in the bronze mechanism, slowly corroding it and replacing it with a green-hued rock known as #atacamite.”
#AntikytheraMechanism #Antikythera #mechanism #Greece #Grèce #Archimede
Magnetic cooling – using a frustrated desert mineral: Research team from @tubraunschweig and #HZDR identifies #atacamite as a #magnetocaloric material. The results could help to develop new materials for energy-efficient magnetic #cooling.
▶️ hzdr.de/presse/atacamite
Image: B. Schröder/HZDR
Which will win today, between the elusive greeny #atacamite and the glittery #stibnite?
I'm definitely #TeamAtacamite, knowing that I loooooove that green viridian hue, the same as the #Dioptase one...
What do you think? Vote here: https://www.mineralcup.org/2024/vote/r1m07
If you're still reeling from the defeat of #Copper, now is your chance to keep copper in the running in #MinCup24. Vote for #Atacamite, a copper chloride hydroxide which in some locations can be a minor ore for copper.
Vote #Atacamite! www.mineralcup.org/2024/vote/r1m07
#Atacamite -used as a green pigment since antiquity on ancient Egyptian paintings, illuminated manuscripts, sculptures, oil paintings or here in ancient Buddhist Kizil Caves in China (3rd-8th century) pulls ahead of #Stibnite -used as kohl as cosmetics since ancient Egypt for my #MinCup24 art vote.
Recognise this? Yes, that's #Atacamite! Atacamite can form as a corrosion product of copper alloys so is found coating many bronze statues including the Statue of Liberty.
Vote Atacamite today! https://www.mineralcup.org/2024/vote/r1m07
#MinCup24 @MineralCup
Image: https://commons.m.wikimedia.org/wiki/File:Statue_of_liberty_head_2013-10-28.jpg
Atacamite has been used as a green-blue pigment in cultural artefacts for millennia and across continents.
#Atacamite wins the art vote for today!
Vote Atacamite today! https://www.mineralcup.org/2024/vote/r1m07
#MinCup24 @MineralCup
Some examples:
Analysis found atacamite in the statue of Our Lady of Copacabana, Titicaca Lake, Bolivia; in numerous European paintings and frescoes from the Medieval era; and in decorative artefacts excavated from the Palace of Apries built in Upper Egypt over 2590 years ago!
What connects the driest place on Earth, the volcano that smothered Pompeii, and our memorials to the great and good? That's right! It's #Atacamite!
Vote Atacamite today! https://www.mineralcup.org/2024/vote/r1m07
#MinCup24 @MineralCup
#MinCup24 ROUND 1 MATCH 7: #Stibnite vs #Atacamite
Are you rooting for kohl, responsible for dramatic eyes for eons ? Or do you favour the newcomer found everywhere from the Statue of Liberty to bloodworm jaws?
VOTE: https://www.mineralcup.org/2024/vote/r1m07
RESULTS: https://www.mineralcup.org/2024/results/r1m07
OFA
HZDR
Zeolith 
Rachael Taylor
Ele Willoughby, PhD
Mineral Cup & Ore Cup