Aragonite

Report: Acidic Oceans Tied to Human Activity

Edit Voa News 08 Sep 2016

Scientists have known for a while that the world's oceans play a big role in the climate because they absorb carbon dioxide, both naturally occurring and the carbon we put in the atmosphere through burning fossil fuels ... Oceans ... Her team's concern was that excessive carbon and higher acidity in the oceans could be lowering the amount of a mineral called aragonite, which is essential for many marine species’ shells....

Study finds increased ocean acidification due to human activities (MIT - Massachusetts Institute of Technology)

Edit Public Technologies 07 Sep 2016

The increased uptake in carbon dioxide has also decreased the availability of aragonite - an essential mineral for many marine species' shells ... Add enough atmospheric carbon dioxide into the mix, and the scales could tip toward an increasingly acidic ocean, which could have an effect first in sea snails called pteropods, which depend on aragonite (a form of calcium carbonate) to make their protective shells....

Sea shell, a masterpiece of animal architecture

Edit The Guardian 04 Aug 2016

Warkworth beach, Northumberland Wave-agitated sand had ground down the shell revealing its hidden structure, a helter-skelter chamber ... an inner zone of interlocking prismatic calcite crystals in a matrix of proteins, a nacreous layer of aragonite plates that produce those rainbow colours when sunlight strikes their worn surface, and, finally, the outer pigmented, chalky coating that camouflages the animal amid swaying purple seaweeds....

Researchers at the UPV/EHU-University of the Basque Country characterise the materials used to build the Punta Begoña Galleries (Euskal Herriko Unibertsitatea)

Edit Public Technologies 13 Jul 2016

(Source. Euskal Herriko Unibertsitatea) ... In addition to characterising the materials, the deterioration problems the galleries have been suffering have also been analysed ... As regards the ceilings, that of the upper gallery is based on calcite, quartz, aragonite and gypsum. The appearance of aragonite, the main component of shells and coral skeletons, confirms that beach sand was used as the aggregate in some of the mortars ... (noodl....

Ocean forecast offers seasonal outlook for Pacific Northwest waters (University of Washington)

Edit Public Technologies 22 Jun 2016

(Source. University of Washington). Environment . News releases . Research . Science. June 22, 2016 ... These same types of climate models are now being adapted to make seasonal forecasts for the region's coastal waters ... Forecasted values include pH and aragonite, a calcium-containing mineral that marine animals use to harden their shells, so the tool can also help predict which months will have good conditions for growing shellfish ... ### ... Tag(s)....

Researchers Detected Two Centuries of Ocean's Coral Skeletons Record Mercury (University of Science and Technology of China)

Edit Public Technologies 18 Jun 2016

(Source. University of Science and Technology of China). A research group led by SUN Ruoyu from University of Science and Technology of China, suggests that corals in the South China Sea may have taken up the metal, keeping a record of wars locked in their skeletons ... Scleractinian corals build skeletons with aragonite, a calcium carbonate mineral, separated from ambient seawater ... Link. http.//pubs.acs.org/doi/abs/10.1021/acs.est.5b05965....

Rutgers Scientists Help Create World’s Largest Coral Gene Database (Rutgers University)

Edit Public Technologies 24 May 2016

(Source. Rutgers University). Photo. Michael Lesser, University of New Hampshire. A coral reef in Komodo National Park in Eastern Indonesia. Coral reefs - stunning, critical habitats for an enormous array of prized fish and other species - have survived five major extinction events over the last 250 million years ... Biological Sciences last month ... Photo. Todd B. Bates ... 'The aragonite (hard skeleton) is not just minerals,' Bhattacharya said....

How Fish Farms Destroy the Ecosystem and Threaten Your Health

Edit Mercola 24 May 2016

Fish used to be one of the healthiest foods on the planet, but pollution and farming perversions have made most fish a highly unhealthy food, and some types of farmed fish the most toxic food on the planet. Fish farming, which began about 65 years ago, is considered by many to be one of the least sustainable approaches to farming ... In healthy fish, these bones are composed of aragonite, a crystalline form of calcium carbonate ... " ... The U.K....

Half of All Farmed Fish Have Hearing Loss Thanks to Deformed Ear Bones

Edit Newsweek 28 Apr 2016

Try Newsweek ... In healthy fish, these bones are composed of aragonite, a crystalline form of calcium carbonate ... The ear bone on the right is deformed and made of a material called vaterite, while the one of the left is normal and made of aragonite ... Otoliths grow outward one layer at a time like rings on a tree, and at some point in the case of the deformed fish, the animal’s body began laying down layers of vaterite instead of aragonite....

Severe Arctic Ocean acidification via permafrost thawing and river runoff (Stockholms Universitet)

Edit Public Technologies 20 Apr 2016

The team tracked the progress of acidification in the East Siberian Arctic Shelf by estimating the saturation state of aragonite, a soluble crystalline form of calcium carbonate, in water samples collected during research expeditions from 1999 to 2011. Aragonite is crucial for marine organisms to form their skeletons or shells. With fewer carbonate ions, the seawater becomes 'under-saturated' with respect to aragonite....

Thawing permafrost, freshwater drive Arctic Ocean acidification (University of Alaska Fairbanks)

Edit Public Technologies 18 Apr 2016

(Source ... 'We studied the level of aragonite, a carbonate mineral that is necessary for some marine organisms to survive,' explained Igor Semiletov, lead author of the paper and a scientist with the International Arctic Research Center at the University of Alaska Fairbanks. 'We found extreme aragonite undersaturation in the ESAS, which means the aragonite concentration has dropped way below its threshold,' he said ... ADDITIONAL CONTACTS....

Thawing permafrost and freshwater drive Arctic Ocean acidification (International Arctic Research Center)

Edit Public Technologies 18 Apr 2016

(Source ... (Photo by I ... 'We studied the level of aragonite, a carbonate mineral that is necessary for some marine organisms to survive,' explained Igor Semiletov, lead author of the paper and a scientist with the International Arctic Research Center at the University of Alaska Fairbanks. 'We found extreme aragonite undersaturation in the ESAS, which means the aragonite concentration has dropped way below its threshold,' he said ... (noodl....

2015/16 Mid-Year Budget Statement (Bahamas Financial Services Board)

Edit Public Technologies 07 Mar 2016

(Source. Bahamas Financial Services Board). Prime Minister The Rt. Hon. Perry G. Christie, M.P. as Minister of Finance today in Parliament presented his Mid-Year Statement on the 2015 2016 National Budget ... Prime Minister Christie noted that the Government's achievements in executing its agenda for change and reform have been significant to date ... Tax Reform ... We are establishing new regimes governing the exploration of oil, salt and aragonite....

Aragonite

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Bahamas Aragonite

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Aragonite, calcite, malachite, crystal haul!...

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Healing Crystals Aragonite Information Video...

Slavi talks about Aragonite...

ARAGONITE • Rob's Stone Healing...

Cheapest Aragonite Sand...

Celestite, Blue Aragonite, Azurite, Blue Sapphire,...

Arachnid

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