Cubo-ice
A valid IMA mineral species
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Ice Cube
Formula:
H2O
Crystal System:
Isometric
Name:
Long known as a synthetic material under the name ice-VII. That name was kept after the discovery of natural material. The name was changed by the IMA to cubo-ice in 2022.
Type Locality:
Dimorph of:
Cubo-ice is better known as ice-VII.
Found as inclusion in a diamond from Orapa, Botswana.
Cubo-ice is structurally closely related to cuprite Cu2O.
Found as inclusion in a diamond from Orapa, Botswana.
Cubo-ice is structurally closely related to cuprite Cu2O.
Unique Identifiers
Mindat ID:
51969
Long-form identifier:
mindat:1:1:51969:2
GUID
(UUID V4):
(UUID V4):
2d3f1d74-ef57-45c3-858c-2377a4e78113
IMA Classification of Cubo-ice
Classification of Cubo-ice
4.AA.10
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
A : Cation:Anion (M:O) = 2:1 (and 1.8:1)
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
A : Cation:Anion (M:O) = 2:1 (and 1.8:1)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Ice-VII | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Cubo-ice
Mindat Formula:
H2O
Elements listed:
Crystallography of Cubo-ice
Crystal System:
Isometric
Cell Parameters:
a = 3.1633(3) Å
Unit Cell V:
31.65 ų (Calculated from Unit Cell)
Comment:
Spacegroup: Pn-3m
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.237 Ã… | (100) |
| 1.582 Ã… | (11) |
| 1.291 Ã… | (23) |
| 1.118 Ã… | (7) |
| 1.000 Ã… | (7) |
| 0.913 Ã… | (2) |
| 0.845 Ã… | (8) |
| 0.791 Ã… | (1) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Type Occurrence of Cubo-ice
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Royal Ontario Museum, Toronto, Ontario, Canada, accession number M57666.
Geological Setting of Type Material:
An inclusion in diamond formed at a pressure of 11 GPa.
Associated Minerals at Type Locality:
Synonyms of Cubo-ice
Related Minerals - Strunz-mindat Grouping
| 4.AA.05 | Ice | H2O |
| 4.AA.10 | Cuprite | Cu2O |
| 4.AA.15 | Paramelaconite | Cu1+2Cu2+2O3 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Cubo-ice
mindat.org URL:
https://www.mindat.org/min-51969.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Cubo-ice
Reference List:
HÃ¥lenius, 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.2017.081.062
Localities for Cubo-ice
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Botswana (TL) | |
| HÃ¥lenius et al. (2017) +2 other references |
China | |
| Tschauner et al. (2018) | |
South Africa | |
| Tschauner et al. (2018) |
