Abstract
JOHACHIDOLITE is a curious mineral species first described by Iwase and Saito1 from nepheline dikes cutting limestone at Johachido, North Korea. They proposed the unlikely formula H6Na2Ca3Al4F5B6O20 which prompted speculations in several subsequent papers, none of which reconciled its chemistry. Drs R. C. Erd and L. Aristarain have determined the cell parameters as being a, 7.970 ± 0.001; b, 11.722 ± 0.001; c, 4.374 ± 0.001 Å, Cmma, Z=4, and they aroused our interest in the crystallographic structure.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
We are sorry, but there is no personal subscription option available for your country.
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
Iwase, E., and Saito, N., Sci. Papers Inst. Phys. Chem. Research Tokyo, 39, 300 (1942).
Cromer, D. T., and Mann, J. B., Acta Cryst., A, 24, 321 (1968).
Onken, H., and Fischer, K. F., Zeitschi: Krist., 127, 188 (1968).
Moore, P. B., and Louisnathan, J., Science, 156, 1361 (1967).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
MOORE, P., ARAKI, T. Johachidolite, CaAl[B3O7], a Borate with Very Dense Atomic Structure. Nature Physical Science 240, 63–65 (1972). https://doi.org/10.1038/physci240063a0
Received:
Issue Date:
DOI: https://doi.org/10.1038/physci240063a0
This article is cited by
-
Experimental and Theoretical Contribution to the Phase Equilibria in the Ternary CaO-Al2O3-B2O3 System
Journal of Phase Equilibria and Diffusion (2020)
