Original paper

Katayamalite and baratovite are structurally identical

Baur, Werner H.; Kassner, Dethard

European Journal of Mineralogy Volume 4 Number 4 (1992), p. 839 - 842

7 references

published: Aug 11, 1992
manuscript accepted: Apr 6, 1992
manuscript received: Nov 25, 1991

DOI: 10.1127/ejm/4/4/0839

BibTeX file

ArtNo. ESP147050404012, Price: 29.00 €

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Abstract An investigation of the crystal structure of the mineral katayamalite, KLi3Ca7Ti2[Si6O18]2(OH,F)2 , shows that it is best described as monoclinic in space group C2/c, and not as centrosymmetrically triclinic as originally proposed. Moreover, a comparison of the crystal structures of katayamalite and baratovite, KLi3Ca7(Ti,Zr)2[Si6O18]2(OH,F)2, shows them to be identical within experimental error. The only difference between the two minerals is the slightly different chemical composition. Therefore katayamalite and baratovite are structurally identical minerals.


Katayamalitebaratovitesymmetrycrystal structurering silicate