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Elasticity of natural aragonite samples by Brillouin spectroscopy
The single-crystal elastic moduli of three natural aragonites, CaCO 3 , have been determined at ambient conditions by Brillouin spectroscopy. The...
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Aragonite dissolution protects calcite at the seafloor
In the open ocean, calcium carbonates are mainly found in two mineral forms. Calcite, the least soluble, is widespread at the seafloor, while...
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Micro-contextual characterization of pyrogenic aragonite diagenesis in archaeological ash: implications for radiocarbon dating of calcium carbonate in combustion features
Pyrotechnological activities leave many traces in the archaeological record, most notably ash, which is the powdery residue of the combustion of...
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Crystallographic and chemical signatures in coral skeletal aragonite
Corals nucleate and grow aragonite crystals, organizing them into intricate skeletal structures that ultimately build the world’s coral reefs....
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Aragonite in the Interstitial Space of a Mantle Xenolith from the Udachnaya Kimberlite Pipe (Siberian Craton): Direct Evidence for the Presence of Carbonatite Melts in the Deep Lithospheric Mantle
AbstractThis paper reports the first discovery of zoned aragonite, a high-pressure CaCO 3 polymorph, in a mantle xenolith from kimberlite. Aragonite...
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Evidence for helical microstructure of aragonite fibers in pteropod shells
AbstractPlanktonic gastropods of the suborder Euthecosomata (order Pteropoda) secrete a unique microstructure made of tightly interlocked,...
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The effect of long-range interactions on the infrared and Raman spectra of aragonite (CaCO3, Pmcn) up to 25 GPa
Long-range interactions are relevant in the physical description of materials, even for those where other stronger bonds give the leading...
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Hadal aragonite records venting of stagnant paleoseawater in the hydrated forearc mantle
The hadal zone at trenches is a unique region where forearc mantle rocks are directly exposed at the ocean floor owing to tectonic erosion....
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Aqueous mechano-bactericidal action of acicular aragonite crystals
Nanoneedle structures on dragonfly and cicada wing surfaces or black silicon nanoneedles demonstrate antibacterial phenomena, namely...
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Trepostome bryozoans buck the trend and ignore calcite-aragonite seas
Trepostome bryozoan skeletalisation did not passively respond to changes in seawater chemistry associated with calcite-aragonite seas. According to...
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Carbonatite-melilitite-phosphate immiscible melts from the aragonite stability field entrained from the mantle by a Pliocene basalt
A plagioclase megacryst containing composite crystal-glass inclusions was ejected in a Pliocene basaltic diatreme in the Carpathian back-arc basin...
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Stylasterid corals build aragonite skeletons in undersaturated water despite low pH at the site of calcification
Anthropogenic carbon emissions are causing seawater pH to decline, yet the impact on marine calcifiers is uncertain. Scleractinian corals and...
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Fibrous dolomite formation at a Miocene methane seep may reflect Neoproterozoic aragonite-dolomite sea conditions
Fibrous dolomite widely formed in Neoproterozoic marine sedimentary environments, but apparently disappeared in the Phanerozoic. Here, fibrous...
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The shell microstructure of the pteropod Creseis acicula is composed of nested arrays of S-shaped aragonite fibers: A unique biological material
AbstractSnails of the superfamily Cavolinioidea, known as pteropods, are very abundant in the surface waters of all the oceans. Their transparent and...
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Enhancement of aragonite mineralization with a chelating agent for CO2 storage and utilization at low to moderate temperatures
Among the CaCO 3 polymorphs, aragonite demonstrates a better performance as a filler material in the paper and plastic industries. Despite being ideal...
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Missing lawsonite and aragonite found: P–T and fluid composition in meta-marls from the Combin Zone (Western Alps)
We report the first findings of several occurrences of lawsonite and metamorphic aragonite in the meta-sediments from the Combin Zone...
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Nacre toughening due to cooperative plastic deformation of stacks of co-oriented aragonite platelets
Nacre’s structure-property relationships have been a source of inspiration for designing advanced functional materials with both high strength and...
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Fe-Rich Aragonite Concretion Applied to Industrial Dye Purification Using Fenton and Photo-Fenton Technologies
AbstractFor a low cost and efficient oxidation process of industrial textile dye, this investigation described an economic process for the Indigo...
