We present the first detailed crystallo-chemical and crystallographic description of cronstedtite with extraterrestrial origin. The analysed crystals occur as pseudomorphs after anhydrous silicates in the Paris meteorite, which is the least altered carbonaceous chondrite currently known. Three-dimensional electron diffraction data have been collected by electron diffraction tomography and used to identify the cronstedtite polytypes, because of their small size. All identified polytypes are MDO (Maximum degree of order), and the most abundant one is 1T. Many other crystals also belong to the Bailey's group (or OD subfamily) C, but their stacking disorder hampers the polytype identification. Only in one crystal could the 3T and 2M1 polytypes be recognised. TEM-EDX data indicate that the chemical composition of the crystals is similar, regardless of their polytypic sequence.
Skip Nav Destination
Article navigation
Research Article|
March 01, 2018
Cronstedtite polytypes in the Paris meteorite
Isabella Pignatelli;
1
CRPG, UMR 7358, CNRS - Université de Lorraine
, 54500Vandoeuvre-lès-Nancy, France
Corresponding author, e-mail: [email protected]
Search for other works by this author on:
Enrico Mugnaioli;
Enrico Mugnaioli
2
Dipartimento di Scienze Fisiche, della Terre e dell'Ambiente, Università degli Studi di Siena
, Via Laterino 8, 53100Siena, Italy
3
Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia
, Piazza San Silvestro 12, 56127Pisa, Italy
Search for other works by this author on:
Yves Marrocchi
Yves Marrocchi
1
CRPG, UMR 7358, CNRS - Université de Lorraine
, 54500Vandoeuvre-lès-Nancy, France
Search for other works by this author on:
1
CRPG, UMR 7358, CNRS - Université de Lorraine
, 54500Vandoeuvre-lès-Nancy, France
Enrico Mugnaioli
2
Dipartimento di Scienze Fisiche, della Terre e dell'Ambiente, Università degli Studi di Siena
, Via Laterino 8, 53100Siena, Italy
3
Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia
, Piazza San Silvestro 12, 56127Pisa, Italy
Yves Marrocchi
1
CRPG, UMR 7358, CNRS - Université de Lorraine
, 54500Vandoeuvre-lès-Nancy, France
Corresponding author, e-mail: [email protected]
Publisher: Deutsche Mineralogische Gesellschaft, Sociedad Española de Mineralogia, Societá Italiana di Mineralogia e Petrologia, Société Francaise de Minéralogie
Received:
16 Sep 2017
Revision Received:
24 Oct 2017
Accepted:
24 Oct 2017
First Online:
14 Aug 2018
Online ISSN: 1617-4011
Print ISSN: 0935-1221
© 2017 E. Schweizerbart'sche Verlagsbuchhandlung, D-70176 Stuttgart
European Journal of Mineralogy (2018) 30 (2): 349–354.
Article history
Received:
16 Sep 2017
Revision Received:
24 Oct 2017
Accepted:
24 Oct 2017
First Online:
14 Aug 2018
Citation
Isabella Pignatelli, Enrico Mugnaioli, Yves Marrocchi; Cronstedtite polytypes in the Paris meteorite. European Journal of Mineralogy 2018;; 30 (2): 349–354. doi: https://doi.org/10.1127/ejm/2018/0030-2713
Download citation file:
You could not be signed in. Please check your email address / username and password and try again.
Index Terms/Descriptors
- carbonaceous chondrites
- chemical composition
- chondrites
- CM chondrites
- cronstedtite
- crystal chemistry
- EDS spectra
- electron diffraction data
- electron microscopy data
- meteorites
- order-disorder
- polytypism
- serpentine group
- sheet silicates
- silicates
- spectra
- stacking
- stony meteorites
- TEM data
- X-ray spectra
- Paris Meteorite
Citing articles via
Related Articles
Nanometer-scale measurements of Fe 3+ /ΣFe by electron energy-loss spectroscopy: A cautionary note
American Mineralogist
Mineralogy of the 2019 Aguas Zarcas (CM2) carbonaceous chondrite meteorite fall
American Mineralogist
Crystal structure of cronstedtite-6 T 2 , a non-MDO polytype
European Journal of Mineralogy
Related Book Content
Workflow model for the digitization of mudrocks
Application of Analytical Techniques to Petroleum Systems
Pore space characteristics of the Upper Visean ‘Rudov Beds’: insights from broad ion beam scanning electron microscopy and organic geochemical investigations
Application of Analytical Techniques to Petroleum Systems
Feldspar alteration and Fe minerals: origin, distribution and implications for sandstone reservoir quality in estuarine sediments
Reservoir Quality of Clastic and Carbonate Rocks: Analysis, Modelling and Prediction
High-Resolution Multispectral Analysis of Organic-Rich Mudstones
Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks