10 Å Phase
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Formula:
(H3O)2Mg6Si8O22(OH)2
A high-pressure-high-temperature phase in the series of dense hydrous magnesium silicates (DHMS).
It is stable at pressures between 32 and 95 kbar and temperatures between 375 and
535°C (Bauer & Sclar, 1985).
It is stable at pressures between 32 and 95 kbar and temperatures between 375 and
535°C (Bauer & Sclar, 1985).
Name Encoding
ASCII-7:
10 A Phase
Unique Identifiers
Mindat ID:
29206
Long-form identifier:
mindat:1:1:29206:9
Similar Names
| 3.95 Å Phase | |
| Phase 412 | A synonym of Pfaffenbergite |
| Phase 430 | A synonym of Bonaccorsiite |
Chemistry of 10 Å Phase
Mindat Formula:
(H3O)2Mg6Si8O22(OH)2
Element Weights:
Elements listed:
Synonyms of 10 Å Phase
Other Language Names for 10 Å Phase
Norwegian:10 Å fase
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 10 Å Phase
mindat.org URL:
https://www.mindat.org/min-29206.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for 10 Å Phase
Reference List:
Bauer, Jon F.; Sclar, Charles B. (1981) The "10Å phase" in the system MgO-SiO2-H2O. American Mineralogist, 66 (5-6). p.576-585.
Localities for 10 Å Phase
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - 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).
All localities listed without proper references should be considered as questionable.
Pacific Ocean | |
| Peretyazhko et al. (2025) |
| Peretyazhko et al. (2025) |
