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Mineralogical Society of America @mineralsocamerica.bsky.social · 1d

American Mineralogist:
Moxuanxueite, NaCa6Zr(Si2O7)2OF3, a new wöhlerite-group mineral from Gejiu alkaline complex, Yunnan Province, China
Kai Qu, Guochen Dong, Ting Li, Guang Fan, Xiangping Gu, Yufei Wang, Yanjuan Wang
doi.org/10.2138/am-2...
A new Zr-disilicate.

Mineralogical Society of America @mineralsocamerica.bsky.social · 2d

Thin Section Thursday:
The matrix of devitrified glass and microlites has flowed around this large composite feldspar grain. In XP, the central grain is black because it has been rotated to extinction. In other orientations it is gray to white. Contributed by Matt Kohn. #thinsectionthursday

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Mineralogical Society of America @mineralsocamerica.bsky.social · 3d

American Mineralogist:
EBSD mapping of Cu-Fe-sulfides reveals microstructures enriched in critical/precious metals and resolves deformation histories
Samuel A. King, et al.
doi.org/10.2138/am-2...
Chalcopyrite is shown to be a rich source of micro-structural and -textural information.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 4d

October American Mineralogist:
Natrojarosite formed in the Matanomadh Formation, Kutch, India: A Na analog of jarosite on Mars
Dwijesh Ray, Aditya Das, Subham Sarkar, Satadru Bhattacharya, Chandrani Nayak
doi.org/10.2138/am-2...

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Mineralogical Society of America @mineralsocamerica.bsky.social · 5d

Dear Members of MSA:
Please check your email for information on MSA events happening at the GSA meeting in San Antonio TX this month. We hope to see you at the lunch, the reception, or the MSA booth (#236) in the Exhibits Hall.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 5d

Mineral Monday: Thaumasite Distress in Concrete
Thaumasite is a rare but highly destructive mineral phase that can form in concrete under specific conditions, leading to severe deterioration.
#MSACommunications #MineralMonday #concrete #thaumasite

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Mineralogical Society of America @mineralsocamerica.bsky.social · 7d

Announcement: the Keynote Speakers for the MSA Inaugural Annual Meeting on February 16-18, 2026 in Tucson, Arizona, USA are: Peter Megaw, Jolyon Ralph, Pupa Gilbert, Nancy Ross, & Elizabeth Rampe.
Abstract submissions due October 31, 2025,
More information: msaweb.org/annualmeeting/.

AnnualMeeting – MSA

msaweb.org

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Mineralogical Society of America @mineralsocamerica.bsky.social · 8d

American Mineralogist:
Enrichment mechanism of heavy rare earth elements in magmatic-hydrothermal titanite: Insights from SXAS/XPS experiments and first-principles calculations and implications for regolith-hosted HREE deposits
Yuzhou Feng, et al.
doi.org/10.2138/am-2...

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Mineralogical Society of America @mineralsocamerica.bsky.social · 9d

Thin Section Thursday!
Large crystals of feldspar and quartz scatter across a groundmass of devitrified glass and microlites. In XP, the feldspars display spectacular twinning and zoning. Contributed by Matt Kohn. #thinsectionthursday
Send images and a caption to akoziol1 at udayton dot edu.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 10d

American Mineralogist:
Mariakrite, [Ca4Al2(OH)12(H2O)4][Fe2S4]: A new mineral and the first layered double hydroxide intercalated with dithioferrate (iron disulfide) chains
Mikhail N. Murashko, et al.
doi.org/10.2138/am-2...
Found in pyrometamorphic rocks in the Negev Desert.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 11d

American Mineralogist:
The high-pressure, vacancy-stabilized component in clinopyroxenes
Ioannis Baziotis, Chi Ma, Stephan Klemme, Jasper Berndt, Oliver Tschauner, Paul D. Asimow
doi.org/10.2138/am-2...
Baziotis et al. assess the molar volume of vacancy-rich, high-pressure clinopyroxenes.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 12d

Mineral Monday: Battle between the Bands

The presence of low-Al komatiite-like rocks in the early oceanic crust were the reason for both the formation of BIFs and their abundance in the Archaean/early Proterozoic era.
#MSACommunications #MineralMonday #BIF #bandedironformations

Mineralogical Society of America @mineralsocamerica.bsky.social · 12d

American Mineralogist:
Vesuvianite as a key tool for the reconstruction of skarn formation conditions: An example from the Sauce Chico Complex, Argentina
Carlos A. Ballivián Justiniano, et al.
doi.org/10.2138/am-2...
Vesuvianite does not seem to undergo important structural modifications.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 15d

American Mineralogist:
Lianbinite, (NH4)(C2H3O3)(C2H4O3), a new glycolate mineral, from the Santa Catalina Mountains, Tucson, Arizona, U.S.A.
Hexiong Yang, Xiangping Gu, Warren Lazar, Ronald B. Gibbs, Robert T. Downs
doi.org/10.2138/am-2...

Mineralogical Society of America @mineralsocamerica.bsky.social · 16d

NOTE: MSA Inaugural Annual Meeting: Feb, 16-18, 2026, Tucson, AZ, USA
This will follow the Tucson Gem and Mineral Show. On Feb. 17 and 18 there will be a series of talks and poster sessions. Abstracts due: Oct. 31. Registration will be through the MSA website at www.msaweb.org

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Mineralogical Society of America @mineralsocamerica.bsky.social · 17d

American Mineralogist:
Formation and transformation of clay minerals in Mars-analog rock varnish
Qian Fang, et al.
doi.org/10.2138/am-2...
Rock varnish is considered a representative analog for studying traces of life and water-rock interactions on Mars.

Mineralogical Society of America @mineralsocamerica.bsky.social · 18d

Silicate liquid immiscibility in the Chang'e 5 lunar mare magmas: Constraints on the petrogenesis of lunar granitic rocks
Le Zhang, et al.
doi.org/10.2138/am-2...
Silicon-rich melt inclusions hosted in fayalite formed through late-stage silicate liquid immiscibility in lunar mare basaltic magmas.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 19d

Mineral Monday: Embracing the future of mining careers starting with Generation Z

By Harriet Naakai Tetteh & Zohreh Kazemi Motlagh

ResearchGate Link: www.researchgate.net/publication/...

#MSACommunications #MineralMonday #CareersinMining

Mineralogical Society of America @mineralsocamerica.bsky.social · 22d

American Mineralogist:
Reconstructing volatile evolution in melts using zircon-hosted apatite inclusions: Implications for the use of apatite as a fertility indicator
Qiang Li, et al.
doi.org/10.2138/am-2...
Apatite-in-zircon is of superior value for reconstructing melt volatile evolution.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 23d

Thin Section Thursday!
Garnet on the left with qtz across the rest of the field of view. In PPL, this is plain, but in XPL you’ll see that the qtz has been recrystallized to a fine grain size. FOV: 2 mm. Contributed by Matt Kohn. #thinsectionthursday
Send yours to akoziol1 at udayton dot edu.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 24d

American Mineralogist:
In situ Raman spectroscopic investigation on the phase transition of grunerite at high pressures
Zhi Zheng, Shaohao Zou, Chuanjun Wu, Shenghua Mei
doi.org/10.2138/am-2...
Zheng et al. studied grunerite up to ~23.66 GPa using a diamond anvil cell & in situ Raman spectroscopy.

In situ Raman spectroscopic investigation on the phase transition of grunerite at high pressures | American Mineralogist | GeoScienceWorld

Abstract. Amphiboles are key rock-forming minerals and play a significant role in the subduction process. Grunerite (Mg,Fe)7Si8O22(OH)2, as an important

doi.org

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Mineralogical Society of America @mineralsocamerica.bsky.social · 25d

American Mineralogist:
Berndlehmannite: A new V-bearing sulfide mineral from the black-shale-hosted Zhongcun vanadium deposit, South China
Xuerui Fu, et al.
doi.org/10.2138/am-2...
Berndlehmannite is a member of the carrollite subgroup within the spinel group. The ideal formula is Cu(Cr,V)S6.

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Mineralogical Society of America @mineralsocamerica.bsky.social · 26d

Mineral Monday: Diatoms Diminish Dolomite
By Huifang Xu
Laboratory syntheses results demonstrate that the dissolved silica can catalyze dolomite precipitation. More diatoms = Less dolomite.
#MSACommunications #MineralMonday #dolomite #diatoms #sedimentology #chemicalweathering

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Mineralogical Society of America @mineralsocamerica.bsky.social · 29d

American Mineralogist:
Germanium oxidation state and substitution mechanism in Ge-rich sphalerite from MVT deposits: Constraints from X-ray absorption fine structure (XAFS) and geometric optimization
Pan-Pan Niu, et al.
doi.org/10.2138/am-2...

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Mineralogical Society of America @mineralsocamerica.bsky.social · Sep 11

Thin Section Thursday!
Let’s revisit some images sent to me previously by Cody Steven. PPL image of a grain mount of jarosite. Jarosite (KFe3+3(SO4)2(OH)6) forms in acid-sulfate soils, and is a common product of acid-mine drainage. FOV is 2mm. #thinsectionthursday

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