Skip to Main Content
Skip Nav Destination

Moldavite porosity; a 3-D X-ray micro-tomography study

Ulrike Rantzsch, Alexandra Franz and Gert Kloess
Moldavite porosity; a 3-D X-ray micro-tomography study
European Journal of Mineralogy (December 2013) 25 (4): 705-710


Moldavites are natural glasses formed by distal ejection of meteorite-impact melts; they occur in several shapes (e.g., teardrops, lenticular, dumbbells, spheres) and all contain pores in different sizes. The aim of this study is to describe the distribution of pores in the interior of the scanned objects. The X-ray micro-tomography (mu -XRCT) measurements were utilized to create three-dimensional semi-transparent images of tektites in order to receive information about their porosity. Optimal data interpretation requires the use of proper software programs. For the visualization of the mu -XRCT-data, VG Studio Max 2.0 (Volume Graphics) and ImageJ were utilized. Four tektite samples from the Central European strewn field with different shapes were scanned. The mu -XRCT data depict relations between the distribution of the detected pores and the shape of the tektites. Total volumes, total porosity, number of pores, and pore sizes throughout the tektite samples vary. The evaluated porosity volume of the Bohemian moldavites ranges between 0.024 and 0.085 vol.%. The smallest detected pore has a volume of 0.0003 mm (super 3) , whereas the biggest has a volume of 0.35 mm (super 3) .

ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 25
Serial Issue: 4
Title: Moldavite porosity; a 3-D X-ray micro-tomography study
Affiliation: Leipzig University, Institute of Mineralogy, Crystallography and Materials Science, Leipzig, Germany
Pages: 705-710
Published: 201312
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Germany
References: 46
Accession Number: 2014-002431
Categories: Petrology of meteorites and tektites
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sketch map
N49°00'00" - N52°00'00", E11°00'00" - E16°00'00"
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201403
Close Modal

or Create an Account

Close Modal
Close Modal