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Windmountainite

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Formula:
□Fe3+2Mg2Si8O20(OH)28H2O
Crystal System:
Monoclinic
This page provides mineralogical data about Windmountainite.


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Classification of WindmountainiteHide

Approved, Pending publication
Approval Year:
2019

Chemical Properties of WindmountainiteHide

Formula:
□Fe3+2Mg2Si8O20(OH)28H2O

Crystallography of WindmountainiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 13.759(3) Å, b = 17.911(4) Å, c = 5.274(1) Å
β = 106.44(3)°
Ratio:
a:b:c = 0.768 : 1 : 0.294
Unit Cell V:
1,246.57 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.592Å(100)
5.453Å(16)
4.484Å(19)
4.173Å(28)
3.319Å(53)
3.271Å(13)
2.652Å(30)
2.530Å(27)

Type Occurrence of WindmountainiteHide

Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, P.O. Box 3443, Station D, Ottawa, Ontario K1P 6P4, Canada, catalogue number CMNMC 87260

Synonyms of WindmountainiteHide

Relationship of Windmountainite to other SpeciesHide

Other Members of this group:
Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2OMon. 2/m : B2/m
TuperssuatsiaiteNa2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
Unnamed (Na-Ca-Fe-Silicate-Hydrate)NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7 · 5H2OTric. 1 : P1
WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m

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 WindmountainiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Leung, D.D. and McDonald, A.M. (2019) Windmountainite, IMA 2018-130a. CNMNC Newsletter No. 51; European Journal of Mineralogy, 31, https://doi.org/10.1127/ejm/2019/0031-2894

Internet Links for WindmountainiteHide

Localities for WindmountainiteHide

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.
USA (TL)
 
  • New Mexico
    • Otero Co.
      • Cornudas Mts
Leung, D.D. and McDonald, A.M. (2019) Windmountainite, IMA 2018-130a. CNMNC Newsletter No. 51; European Journal of Mineralogy, 31, https://doi.org/10.1127/ejm/2019/0031-2894
 
Mineral and/or Locality  
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