Skip to Main Content
Skip Nav Destination

The alpha -quartz trigonal symmetry revealed by fracture tests

Thierry Reuschle and Michel Darot
The alpha -quartz trigonal symmetry revealed by fracture tests
European Journal of Mineralogy (August 1996) 8 (4): 695-701


Subcritical crack growth experiments on quartz single-crystals show the prominent role played by water in controlling the crack velocity. Crack propagation tests run in two opposite directions show striking differences, confirming previous results; these differences are mainly due to the anisotropy of the quartz surface energy. Microstructural observations of the fracture surfaces for two opposite crack propagation directions give evidence for this anisotropy which is the consequence of the alpha -quartz trigonal symmetry. The results confirm the subtle difference in adjacent m directions, as already shown by electron chanelling patterns.

ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 8
Serial Issue: 4
Title: The alpha -quartz trigonal symmetry revealed by fracture tests
Affiliation: EOPGS, Laboratoire de Physique des Materiaux, Strasbourg, France
Pages: 695-701
Published: 199608
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 26
Accession Number: 1996-066127
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 199620
Close Modal

or Create an Account

Close Modal
Close Modal