Pseudomullite
Invalid as an unnamed mineral
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Formula:
Al2O3 · SiO2
may also be given as Al2SiO5
An intermediate phase (synthetic) formed during kaolinite-to-mullite thermal transformation, e.g., in association with coal combustion. It is quite likely that this phase also exist in kaolinite thermal transformation paths in the natural environment (e.g., pyrometamorphic zones).
According to Querol et al. (1994), pseudomullite forms from from 'silicon spinel' at 950oC. It may also be formed from interaction of the latter with CaO, to give anorthite as a coexisting product. At 1000oC in transforms to mullite and quartz.
According to Querol et al. (1994), pseudomullite forms from from 'silicon spinel' at 950oC. It may also be formed from interaction of the latter with CaO, to give anorthite as a coexisting product. At 1000oC in transforms to mullite and quartz.
Unique Identifiers
Mindat ID:
51667
Long-form identifier:
mindat:1:1:51667:7
IMA Classification of Pseudomullite
IMA status notes:
Unnamed (probably invalid)
Chemistry of Pseudomullite
Mindat Formula:
Al2O3 · SiO2
may also be given as Al2SiO5
may also be given as Al2SiO5
Element Weights:
Elements listed:
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 Pseudomullite
mindat.org URL:
https://www.mindat.org/min-51667.html
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References for Pseudomullite
Localities for Pseudomullite
Showing 1 localities.
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
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? - 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.
Poland | |
| Ł. Kruszewski EPMA data (publication in progress) |
