Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience
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Synchrotron X-ray tomography can be used to study failure modes in an operating battery

Synchrotron X-ray tomography can be used to study failure modes in an operating battery | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it

http://www.ethlife.ethz.ch/archive_articles/131017_li-ion-battery_per/index_EN

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The authors used Synchrotron X-ray tomography during battery operation to visualize and quantify the origins and evolution of electrochemical and mechanical degradation. Tomography provides the time-resolved, three-dimensional chemical composition and morphology within individual particles and throughout the electrode.

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A Review of the Structures of Vaterite: The Impossible, the Possible, and the Likely

A Review of the Structures of Vaterite: The Impossible, the Possible, and the Likely | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
The importance of the metastable vaterite form of CaCO3 is increasingly appreciated as an intermediate between amorphous calcium carbonate and more stable crystalline polymorphs in biogenic calcification pathways.
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BR 2018 Conference – Red Mud – Bauxite Residue Valorisation and Best Practices Conference

BR 2018 Conference – Red Mud – Bauxite Residue Valorisation and Best Practices Conference | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it

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Charged Surface: Case of Cs+/K+ on Hydrated Muscovite Mica

Charged Surface: Case of Cs+/K+ on Hydrated Muscovite Mica | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
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The authors performed molecular dynamics simulations of Cs+ and K+ adsorption at the hydrated muscovite surface and used quasi-one-dimensional site-specific potential of mean force calculations to quantify the energetics of ion exchange in this system for each individual site and for the entire muscovite surface on average.
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Messinian age and savannah environment of the possible hominin Graecopithecus from Europe

Messinian age and savannah environment of the possible hominin Graecopithecus from Europe | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it

An electron microscope image of a dust particle rounded by eolian transport. It originated in the Sahara desert and was found in 7.2 million year old sediments in Greece. Credit: Ulf Linnemann, Senckenberg Center for Human Evolution and Palaeoenvironment, University of Tübingen Read more at: https://phys.org/news/2017-05-scientists-million-year-old-pre-human-balkans.html#jCp

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Plutonium accident, ancient amber and a call to climate scientists

Plutonium accident, ancient amber and a call to climate scientists | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
The week in science: 9–15 June 2017.
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Scientists have discovered the 99-million-year-old remains of a baby bird encased in amber from northern Myanmar, according to a study published on 6 June (L. Xing et al.Gondwana Res. http://doi.org/b8dw; 2017).
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Olivine Dissolution in Seawater: Implications for CO2 Sequestration through Enhanced Weathering in Coastal Environments

Olivine Dissolution in Seawater: Implications for CO2 Sequestration through Enhanced Weathering in Coastal Environments | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
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The authors present results from batch reaction experiments, in which forsteritic olivine was subjected to rotational agitation in different seawater media for periods of days to months.
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Homo sapiens Skull Jebel Irhoud

Caption: Composite reconstruction of the earliest known Homo sapiens fossils from Jebel Irhoud (Morocco) based on micro computed tomographic scans o
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The Tandem Accelerator Lab at INPP NCSR Demokritos

The Tandem Accelerator Laboratory of the Institute of Nuclear and Particle Physics of the National Center for Scientific Research "Demokritos", Athens, Greece
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The mechanism of iron binding processes in erionite #zeolite fibres

The mechanism of iron binding processes in erionite #zeolite fibres | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
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There is a clear evidence of the very limited effect of the chemical composition of erionite on the Fe(II) binding process and reasonably it does not play a significant role in its toxicity.
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Arsenate and Selenate Scavenging by Basaluminite: Insights into the Reactivity of Aluminum Phases in Acid Mine Drainage

Arsenate and Selenate Scavenging by Basaluminite: Insights into the Reactivity of Aluminum Phases in Acid Mine Drainage | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
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In this study, the affinity of basaluminite and schwertmannite for arsenate and selenate is compared, and the coordination geometries of these oxyanions in both structures are reported.
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Impact of Mn(II)-Manganese Oxide Reactions on Ni and Zn Speciation

Impact of Mn(II)-Manganese Oxide Reactions on Ni and Zn Speciation | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
Layered Mn oxide minerals (phyllomanganates) often control trace metal fate in natural systems. The strong uptake of metals such as Ni and Zn by phyllomanganates results from adsorption on or incorporation into vacancy sites.
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The EURARE Project: Development of a Sustainable Exploitation Scheme for Europe’s Rare Earth Ore Deposits

The EURARE Project: Development of a Sustainable Exploitation Scheme for Europe’s Rare Earth Ore Deposits | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
The EURARE project studied some of both the most advanced and promising REE resources in Europe
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Future ocean resources: metal-rich minerals and genetics

Future ocean resources: metal-rich minerals and genetics | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
The Royal Society’s ‘Future of oceans’ project considers the drivers, potential, and wider consequences of utilising the mineral and genetic wealth of the oceans.
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Where minerals and water meet

A new technique developed by a team including University of Delaware Professor Neil Sturchio and colleagues at Argonne National Laboratory and th
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Formation of Hadean granites by melting of igneous crust

Formation of Hadean granites by melting of igneous crust | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
The formation process for the oldest mineral grains on Earth has remained elusive. A comparison of trace element concentrations of these ancient zircons with known material suggests melting of igneous crust as their source.
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Reaction pathways and textural aspects of the replacement of anhydrite by calcite at 25 °C

Reaction pathways and textural aspects of the replacement of anhydrite by calcite at 25 °C | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
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In this paper the authors report the results of an experimental study of the interaction between anhydrite (100), (010), and (001) surfaces and Na2CO3 aqueous solutions under ambient conditions.
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Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits

Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
Crystalline uraninite is believed to be the dominant form in uranium deposits. Here, the authors find that non-crystalline U(IV) generated through biologically mediated U(VI) reduction is the predominant U(IV)species in ore deposits, implying that biogenic processes are more important than previously thought.
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Characterization of U species revealed that the majority (∼58-89%) of U is bound as U(IV) to C-containing organic functional groups or inorganic carbonate, while uraninite and U(VI) represent only minor components.
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Sulfides - Elements

Sulfides - Elements | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
Sulfide mineralogy, geochemistry and petrology in high-temperature environments and in sediments
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Announcing the winners of the Photo Contest ‘Wonders of Geochemistry’

Announcing the winners of the Photo Contest ‘Wonders of Geochemistry’ | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
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Future Global Mineral Resources - Volume 6, Number 1 – April 2017 | Geochemical Perspectives

Future Global Mineral Resources - Volume 6, Number 1 – April 2017 | Geochemical Perspectives | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
Future Global Mineral Resources
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Gold and uranium concentration in the Carbon Leader Reef, Witwatersrand Supergroup, South Africa

Gold and uranium concentration in the Carbon Leader Reef, Witwatersrand Supergroup, South Africa | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
High-resolution scanning- and transmission-electron microscopy of pyrobitumen-hosted uraninite reveal that uraninite grains are highly porous aggregates of uniformly sized nanocrystals, and that many of their pores are filled by native gold.
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Antimony and Arsenic Behavior during Fe(II)-Induced Transformation of Jarosite

Antimony and Arsenic Behavior during Fe(II)-Induced Transformation of Jarosite | Mineralogy, Geochemistry, Mineral Surfaces & Nanogeoscience | Scoop.it
Jarosite can be an important scavenger for arsenic (As) and antimony (Sb) in acid mine drainage (AMD) and acid sulfate soil (ASS) environments.
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