Pseudophit
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About Pseudophit
Synonym of:
This page provides mineralogical data about Pseudophit.
Unique Identifiers
Mindat ID:
26656
Long-form identifier:
mindat:1:1:26656:9
Similar Names
| Pseudophite | A synonym of Pennine | Mg5Al(AlSi3O10)(OH)8 |
Age distribution
Recorded ages:
Paleoproterozoic to Quaternary : 2211 Ma to 0 Ma - based on 11 recorded ages.
Chemical Analysis
Oxide wt%:
| 2 | 3 | |
|---|---|---|
| SiO2 | 27.8 % | 26.22 % |
| Al2O3 | 11.6 % | 11.14 % |
| Fe2O3 | 19.1 % | |
| FeO | 25.5 % | 44.83 % |
| MnO | 1.7 % | 1.74 % |
| MgO | 1.4 % | 1.45 % |
| H2O | 12.9 % | 13.49 % |
| CaO | 0.98 % | |
| Na2O | 0.09 % | |
| K2O | 0.08 % | |
| Total: | 100 % | 100.02 % |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 2 | Tuften, Tvedalen, Larvik Commune, Vestfold, Norway | XRF analysis by A. O. Larsen. Fe2+ by titration. H2O by difference. | |
| 3 | " " | EMP analysis by M. Erambert. H2O by difference. |
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012235 | Chamosite | Walker J R, Bish D L (1992) Application of Rietveld refinement techniques to a disordered IIb Mg-chamosite Clays and Clay Minerals 40 319-322 | 1992 | Lebanon, New Hampshire, USA | 0 | 293 | |
| 0000119 | Clinochlore | Brown B E, Bailey S W (1963) Chlorite polytypism: II. Crystal structure of a one-layer Cr-chlorite American Mineralogist 48 42-61 | ![]() | 1963 | 0 | 293 | |
| 0000770 | Clinochlore | Phillips T L, Loveless J K, Bailey S W (1980) Cr3+ coordination in chlorites: a structural study of ten chromian chlorites Day Book Body, N. C. American Mineralogist 65 112-122 | ![]() | 1980 | 0 | 293 | |
| 0000771 | Clinochlore | Phillips T L, Loveless J K, Bailey S W (1980) Cr3+ coordination in chlorites: a structural study of ten chromian chlorites Siskiyou Co., Calif. American Mineralogist 65 112-122 | ![]() | 1980 | 0 | 293 | |
| 0001619 | Clinochlore | Nelson D O, Guggenheim S (1993) Inferred limitations to the oxidation of Fe in chlorite: a high-temperature single-crystal X-ray study American Mineralogist 78 1197-1207 | ![]() | 1993 | 0 | 823 | |
| 0002313 | Clinochlore | Guggenheim S, Zhan W (1999) Crystal structures of two partially dehydrated chlorites: The "modified" chlorite structure American Mineralogist 84 1415-1421 | ![]() | 1999 | 0 | 293 | |
| 0002314 | Clinochlore | Guggenheim S, Zhan W (1999) Crystal structures of two partially dehydrated chlorites: The "modified" chlorite structure American Mineralogist 84 1415-1421 | ![]() | 1999 | 0 | 293 | |
| 0002739 | Clinochlore | Welch M D, Marshall W G (2001) High-pressure behaviour of clinochlore American Mineralogist 86 1380-1386 | ![]() | 2001 | 0 | 293 | |
| 0002740 | Clinochlore | Welch M D, Marshall W G (2001) High-pressure behaviour of clinochlore American Mineralogist 86 1380-1386 | ![]() | 2001 | 1.2 | 293 | |
| 0002741 | Clinochlore | Welch M D, Marshall W G (2001) High-pressure behaviour of clinochlore American Mineralogist 86 1380-1386 | ![]() | 2001 | 2.46 | 293 | |
| 0002742 | Clinochlore | Welch M D, Marshall W G (2001) High-pressure behaviour of clinochlore American Mineralogist 86 1380-1386 | ![]() | 2001 | 4.65 | 293 | |
| 0004250 | Clinochlore | Zanazzi P F, Montagnoli M, Nazzareni S, Comodi P (2006) Structural effects of pressure on chlorite: A single-crystal study American Mineralogist 91 1871-1878 | ![]() | 2006 | Alpe Reguzzolo, Val Malenco, Italy | 0.0001 | 293 |
| 0004251 | Clinochlore | Zanazzi P F, Montagnoli M, Nazzareni S, Comodi P (2006) Structural effects of pressure on chlorite: A single-crystal study American Mineralogist 91 1871-1878 | ![]() | 2006 | Alpe Reguzzolo, Val Malenco, Italy | 1.83 | 293 |
| 0004252 | Clinochlore | Zanazzi P F, Montagnoli M, Nazzareni S, Comodi P (2006) Structural effects of pressure on chlorite: A single-crystal study American Mineralogist 91 1871-1878 | ![]() | 2006 | Alpe Reguzzolo, Val Malenco, Italy | 3.14 | 293 |
| 0004253 | Clinochlore | Zanazzi P F, Montagnoli M, Nazzareni S, Comodi P (2006) Structural effects of pressure on chlorite: A single-crystal study American Mineralogist 91 1871-1878 | ![]() | 2006 | Alpe Reguzzolo, Val Malenco, Italy | 4.25 | 293 |
| 0004254 | Clinochlore | Zanazzi P F, Montagnoli M, Nazzareni S, Comodi P (2006) Structural effects of pressure on chlorite: A single-crystal study American Mineralogist 91 1871-1878 | ![]() | 2006 | Alpe Reguzzolo, Val Malenco, Italy | 4.85 | 293 |
| 0007298 | Clinochlore | Zanazzi P F, Comodi P, Nazzareni S, Andreozzi G B (2009) Thermal behaviour of chlorite: an in situ single-crystal and powder diffraction study European Journal of Mineralogy 21 581-589 | 2009 | Val Malenco, Italy | 0 | 298 | |
| 0007299 | Clinochlore | Zanazzi P F, Comodi P, Nazzareni S, Andreozzi G B (2009) Thermal behaviour of chlorite: an in situ single-crystal and powder diffraction study European Journal of Mineralogy 21 581-589 | 2009 | Val Malenco, Italy | 0 | 574 | |
| 0007300 | Clinochlore | Zanazzi P F, Comodi P, Nazzareni S, Andreozzi G B (2009) Thermal behaviour of chlorite: an in situ single-crystal and powder diffraction study European Journal of Mineralogy 21 581-589 | 2009 | Val Malenco, Italy | 0 | 672 | |
| 0007301 | Clinochlore | Zanazzi P F, Comodi P, Nazzareni S, Andreozzi G B (2009) Thermal behaviour of chlorite: an in situ single-crystal and powder diffraction study European Journal of Mineralogy 21 581-589 | 2009 | Val Malenco, Italy | 0 | 775 | |
| 0010543 | Clinochlore | McMurchy R C (1934) The crystal structure of the chlorite minerals Zeitschrift fur Kristallographie 88 420-432 | ![]() | 1934 | Miles City, Montana, USA | 0 | 293 |
| 0001949 | Cookeite | Zheng H, Bailey S W (1997) Refinement of the cookeite "r" structure American Mineralogist 82 1007-1013 | ![]() | 1997 | 0 | 293 | |
| 0001192 | Franklinfurnaceite | Peacor D R, Rouse R C, Bailey S W (1988) Crystal structure of franklinfurnaceite: A tri-dioctahedral zincosilicate intermediate between chlorite and mica American Mineralogist 73 876-887 | ![]() | 1988 | 0 | 293 | |
| 0000155 | Sudoite | Eggleton R A, Bailey S W (1967) Structural aspects of dioctahedral chlorite American Mineralogist 52 673-689 | ![]() | 1967 | 0 | 293 | |
| 0015561 | Sudoite | Aleksandrova V A, Drits V A, Sokolova G V (1973) Crystal structure of ditrioctahedral chlorite Soviet Physics Crystallography 18 50-53 | 1973 | 0 | 293 | ||
| 0003597 | Glagolevite | Krivovichev S V, Armbruster T, Organova N I, Burns P C, Seredkin M V, Chukanov N V (2004) Incorporation of sodium into the chlorite structure: the crystal structure of glagolevite, Na(Mg,Al)6[Si3AlO10](OH,O)8 American Mineralogist 89 1138-1141 | ![]() | 2004 | 0 | 293 |
CIF Raw Data - click here to close
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.
Pseudophit in petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
Internet Links for Pseudophit
mindat.org URL:
https://www.mindat.org/min-26656.html
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References for Pseudophit
Reference List:
Significant localities for Pseudophit
Showing 32 significant localities out of 21,374 recorded on mindat.org.
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.
Australia | |
| [Baileychlore] AM 73 (1988) +1 other reference |
Czech Republic | |
| [Orthochamosite] Am Min 43 (1958) |
Germany | |
| [Sudoite] von Engelhardt et al. (1962) +1 other reference |
Greece | |
| [Baileychlore] LAPIS 2010 7/8 (Kristalldruse ad) +2 other references |
Mali | |
| [Clinochlore] Currier et al. (2011) |
Poland | |
| [Chamosite] Dana et al. (chemical analysis) |
| [Chamosite] Tomas Praszkier | |
Russia | |
| [Chlorite Group var: Tatarkaite] Meister A. (1910) |
| [Glagolevite] M. V. Seredkin et al.: Zap. Vses. Min. Obshch.:132 (1) |
| [Vakhrushevaite] Pekov et al. (2025) |
| [Borocookeite] American Mineralogist +2 other references |
South Africa | |
| [Nimite] Hiemstra et al. (1968) +3 other references |
Sweden | |
| [Gonyerite] Amer.Min. (1955) +1 other reference |
Switzerland | |
| [Chamosite] Berthier (1820) +1 other reference |
Turkey | |
| [Clinochlore var: Chromium-bearing Clinochlore] Dietrich (1978) +2 other references |
UK | |
| [Pennantite] Campbell Smith et al. (1946) +6 other references |
Ukraine | |
| [Donbassite] Lazarenko (1940) |
USA | |
| [Chlorite Group] Jake Harper: Field work |
| [Clinochlore] Shannon (1921b) +1 other reference |
| [Clinochlore] P Cristofono collection | |
| [Cookeite] Earl Ingerson. American Mineralogist +3 other references |
| [Cookeite] Ralph Lieser of Pappy’s Beryl Shop +3 other references |
| [Clinochlore] Jeremy Zolan Collection |
| [Cookeite] King et al. (1991) +1 other reference |
| [Cookeite] USGS Bull 445 +2 other references |
| [Cookeite] King et al. (1994) +2 other references |
| [Clinochlore var: Chromium-bearing Clinochlore] Stuart Herring Collection |
| [Chamosite] A. Plante collection +3 other references |
| [Franklinfurnaceite] Dunn et al. (1987) +1 other reference |
| [Clinochlore] - (Bridenbaugh, 1873) +1 other reference |
| [Clinochlore] Dana 6:1068 +1 other reference |







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The
Croft Gothal Mine, St Hilary, Cornwall, England, UK