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Heterophyllite
A variety of Biotite
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About Heterophyllite
Formula:
K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Designation for a uniaxial biotite from Mangualde, Portugal.
Unique Identifiers
Mindat ID:
11143 (as Heterophyllite)
677 (as Biotite)
677 (as Biotite)
Long-form identifier:
mindat:1:1:11143:6 (as Heterophyllite)
mindat:1:1:677:2 (as Biotite)
mindat:1:1:677:2 (as Biotite)
Chemistry of Heterophyllite
Mindat Formula:
K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Element Weights:
Other Language Names for Heterophyllite
German:Heterophyllit
Spanish:Heterophyllita
Radioactivity
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 Heterophyllite
mindat.org URL:
https://www.mindat.org/min-11143.html
Please feel free to link to this page.
Please feel free to link to this page.
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Mineral Dealers:
References for Heterophyllite
Reference List:
Localities for Heterophyllite
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.
Portugal | |
| Recursos Minerais Metálicos |
Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal