Published in:
Review of the Bulgarian Geological Society, 83 (2022) 3, Seite 23-26
Language:
English
DOI:
10.52215/rev.bgs.2022.83.3.23
ISSN:
0007-3938
Origination:
Footnote:
Description:
Samples of scapolite from the marble quarry from the Samurski Dol locality, situated nearby Chepelare, Central Rhodopes, Bulgaria have been subjected to chemical analyses and single crystal X-ray diffraction studies. The obtained values for the meionite component (Me) range between 70 and 75. The crystal structure of the studied sample has been solved in both I4/m and P42/n space groups, traditionally assigned to scapolite members. The paper provides new insight on the choice of correct space group for description of scapolites crystal structures, with a view of the preferred positions by silicon and aluminum ions and their framework ordering.