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Fehrite

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About FehriteHide

06841440015764454597680.jpg
Prof. Dr. Karl Thomas Fehr
Formula:
MgCu4(SO4)2(OH)6·6H2O
Crystal System:
Monoclinic
Member of:
Name:
Named in honour of Karl Thomas Fehr (14 January 1954, Blaichach in Oberallgäu, Germany - 18 March 2014, Munich, Germany), Professor of Mineralogy at the Department of Geo- and Environmental Sciences at the Ludwig-Maximilians-University Munich, Germany.
Isostructural with:
The Mg analogue of ktenasite and gobelinite. The only currently known purely Mg-Cu sulfate mineral.


Classification of FehriteHide

Approved, Pending publication
Approval Year:
2019

Chemical Properties of FehriteHide

Formula:
MgCu4(SO4)2(OH)6·6H2O

Crystallography of FehriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 5.6062(8) Å, b = 6.129(1) Å, c = 23.834(3) Å
β = 95.29(1)°
Ratio:
a:b:c = 0.915 : 1 : 3.889
Unit Cell V:
815.46 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.936Å(100)
5.920Å(31)
4.845Å(11)
3.933Å(11)
2.964Å(10)
2.775Å(9)
2.659Å(12)
2.552Å(8)

Type Occurrence of FehriteHide

Place of Conservation of Type Material:
collections of (1) the Mineralogical Museum, Centrum für Naturkunde, University Hamburg, Grindelallee 48, 20146 Hamburg, Germany, catalogue No. MM1544 (holotype), and (2) the Mineralogische Staatssammlung München, Theresienstrasse 41, 80333 München, Germany, catalogue No. MSM36473 (cotype)

Other Language Names for FehriteHide

Spanish:Fehrita

Relationship of Fehrite to other SpeciesHide

Member of:
Other Members of this group:
GobeliniteCoCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/m
KtenasiteZnCu4(SO4)2(OH)6 · 6H2OMon.
Unnamed (Zn-analogue of Ktenasite)Zn(Zn,Cu)4(SO4)2(OH)6 · 6H2O

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for FehriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Schlüter, J., Malcherek, T., Rewitzer, C., Hochleitner, R., Müller, D., Günther, A. (2019): Fehrite, IMA 2018-125a. CNMNC Newsletter No. 52; Mineralogical Magazine: 83; https://doi.org/10.1180/mgm.2019.73; http://forum.amiminerals.it/viewtopic.php?f=5&t=15946

Internet Links for FehriteHide

Localities for FehriteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Spain (TL)
 
  • Andalusia
    • Almería
      • Pechina
        • Baños de Alhamilla
Schlüter, J., Malcherek, T., Rewitzer, C., Hochleitner, R., Müller, D., Günther, A. (2019): Fehrite, IMA 2018-125a. CNMNC Newsletter No. 52; Mineralogical Magazine: 83; https://doi.org/10.1180/mgm.2019.73; http://forum.amiminerals.it/viewtopic.php?f=5&t=15946
 
Mineral and/or Locality  
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