Where it forms, where it's found
- Geological setting
An inclusion in diamond formed at a pressure of 11 GPa.
- Type locality
- Orapa Mine
- Orapa
- Letlhakane
- Central District
- Botswana
-21.3069°, 25.3700°
1recorded occurrences
Crystallography
- Cell parameters
- a = 3.1633(3) Å
- Comment
Spacegroup: Pn-3m
Chemical composition
Synonyms
- Cubo-ijs
- Ice-VII
- IMA2017-029
In other languages
- German
- Eis-VII · IMA 2017-029 · Kubo-Eis
Classification
Strunz
10th ed.4.AA.10
- 4OxidesClass
- 4.AMetal: Oxygen = 2:1 and 1:1Division
- 4.AACation:Anion (M:O) = 2:1 (and 1.8:1)Group
- 4.AA.10Cubo-iceSpecies
Group, growth & confusion
Literature, links & citation
Citations
- —Gudkovskikh, S.V. & Kirov, M.V. (2023): Ice structures assembled from cubic water clusters of D2d and S4 symmetry. Acta Crystallographica, A79, (in press).
- 1964Kamb, B., Davis, B.L. (1964) Ice VII, the densest form of ice. Proceedings of the National Academy of Sciences, 52(6), 1433-1439.
- 2017Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2017) New minerals and nomenclature modifications approved in 2017, CNMNC Newsletter No 38. Mineralogical Magazine, 81 (4) 1033-1038 doi:10.1180/minmag.2017.081.062DOI: 10.1180/minmag.2017.081.062
- 2018Tschauner, O., Huang, S., Greenberg, E., Prakapenka, V. B., Ma, C., Rossman, G. R., Shen, A. H., Zhang, D., Newville, M., Lanzirotti, A., Tait, K. (2018) Ice-VII inclusions in diamonds: Evidence for aqueous fluid in Earth’s deep mantle. Science, 359 (6380). 1136-1139 doi:10.1126/science.aao3030DOI: 10.1126/science.aao3030
- 2022Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 69. European Journal of Mineralogy, 34 (5) 463-468 doi:10.5194/ejm-34-463-2022 DOI: 10.5194/ejm-34-463-2022
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Cubo-ice — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/cubo-ice-51969},
note = {Accessed 2026-05-11}
}