Number of the records: 1
Thermal properties of Australian sedimentary opals and Czech moldavites
- 1.0438352 - FZÚ 2015 RIV HU eng J - Journal Article
Thomas, P.S. - Šesták, Jaroslav - Heide, K. - Fueglein, E. - Šimon, P.
Thermal properties of Australian sedimentary opals and Czech moldavites.
Journal of Thermal Analysis and Calorimetry. Roč. 99, č. 3 (2010), s. 861-867. ISSN 1388-6150. E-ISSN 1588-2926.
[Mediterranean Conference on Calorimetry and Thermal Analysis /9./. Marseille, 15.06.2009-18.06.2009]
Institutional research plan: CEZ:AV0Z10100521
Keywords : amorphous silica * DEGAS * moldavite * opal * TG-DSC * TMA
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.752, year: 2010
The thermal properties are presented for a precious opal sourced from Coober Pedy, South Australia and a moldavite from Bohemia, Czech Republic whose origins differ significantly as opal is derived from the slow isothermal diagenesis of silica, while the tektites are specimens of vitreous silica formed from the terrestrial impact of asteroids. The differences between the two glassy silicates are presented through measurement of the TG-DSC, TMA and high-vacuum-hot-extraction DEGAS analysis.
Permanent Link: http://hdl.handle.net/11104/0241769
Number of the records: 1