Crystallochemical effects of heat treatment on Fe-dominant tourmalines from Dolní Bory (Czech Republic) and Vlachovo (Slovakia)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F11%3A00000403" target="_blank" >RIV/00025798:_____/11:00000403 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00269-011-0432-5" target="_blank" >http://dx.doi.org/10.1007/s00269-011-0432-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00269-011-0432-5" target="_blank" >10.1007/s00269-011-0432-5</a>

Result language

angličtina

Original language name

Crystallochemical effects of heat treatment on Fe-dominant tourmalines from Dolní Bory (Czech Republic) and Vlachovo (Slovakia)

Original language description

Heat treatment was performed on selected Fedominant tourmalines to establish the nature of any change in optical properties. Two tourmaline samples from Dolní Bory, Czech Republic (TDB) and Vlachovo, Slovakia (TVL) were heated at 450, 700 and 900°C at 0.1 mPa and ambient oxidation conditions for 8 h. The oxidation of Fe is mostly significant in the Y site as documented on the compression of the Y-site octahedra and subsequent decrease in the a lattice parameter. The Z-site octahedra did not compressed and were not affected by heating-induced Fe oxidation, which indicates only negligible content of ZFe2+ in original samples. After heating at 900°C, the tourmaline structure collapsed likely due to the thermally induced weakening of bonds in Y and Z octahedra, which results in amorphization of tourmaline. Subsequently, breakdown products including Fe-oxides and mullite replaced alkali-depleted amorphized tourmaline.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DB - Geology and mineralogy

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2011

Confidentiality

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

Name of the periodical

Physics and Chemistry of Minerals

ISSN

0342-1791

e-ISSN

—

Volume of the periodical

38

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

599-611

UT code for WoS article

000293141700003

EID of the result in the Scopus database

—