Polytypism of cronstedtite from Chynava, Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00479582" target="_blank" >RIV/68378271:_____/17:00479582 - isvavai.cz</a>

Alternative codes found

RIV/00023272:_____/17:10133636

Result on the web

<a href="http://dx.doi.org/10.3190/jgeosci.239" target="_blank" >http://dx.doi.org/10.3190/jgeosci.239</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3190/jgeosci.239" target="_blank" >10.3190/jgeosci.239</a>

Result language

angličtina

Original language name

Polytypism of cronstedtite from Chynava, Czech Republic

Original language description

Single crystals of cronstedtite ((Fe2+, Mg2+)3-x Fe3+)(Si2-xFe3+x)O5(OH)4, from the borehole near Chyňava, were studied by the four-circle X-ray diffractometer. From precession-like images of reciprocal lattice planes OD subfamilies (Bailey’s groups), and polytypes were identified. EPMA of selected crystals was performed, too. The most common polytype is 2H1, sometimes accompamnied by with 2H2 (both of the group D). In addition, one rare 3T crystal (group A), twinned by reticular merohedry interchanging the obverse/reverse settings of the rhombohedral subfamily structure, was found. Another rare, partially disordered crystal contained 1T (Group C), 3T and traces of 6T2 (group A) polytypes. EPMA of selected crystals revealed minor amounts of Cl up to 0.01 apfu, and small amounts of Mg (0.13–0.24 apfu) regardless of the determined polytype

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GA15-04204S" target="_blank" >GA15-04204S: Studies of crystal structures affected by polytypism</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Geosciences

ISSN

1802-6222

e-ISSN

—

Volume of the periodical

62

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

137-146

UT code for WoS article

000403154700007

EID of the result in the Scopus database

2-s2.0-85020736517