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Mengeite

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Formula:
Ba(Mg,Mn2+)Mn3+4(PO4)4(OH)4·4H2O
Crystal System:
Triclinic
Structurally related to bermanite and ercitite.


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Classification of MengeiteHide

Approved, Pending publication
Approval Year:
2018

Chemical Properties of MengeiteHide

Formula:
Ba(Mg,Mn2+)Mn3+4(PO4)4(OH)4·4H2O

Crystallography of MengeiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 5.426(1) Å, b = 5.427(1) Å, c = 16.387(3) Å
α = 87.63(3)°, β = 99.08(3)°, γ = 110.63(3)°
Ratio:
a:b:c = 1 : 1 : 3.02
Unit Cell V:
445.89 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
16.126(100)
5.106(12)
4.418(44)
3.246(14)
3.191(9)
3.145(12)
2.796(25)
2.680(12)

Type Occurrence of MengeiteHide

Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the South Australian Museum, North Terrace, Adelaide,South Australia 5000, Australia, registration number G34744

Synonyms of MengeiteHide

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 MengeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Elliott, P. (2018) Mengeite, IMA 2018-035. CNMNC Newsletter No. 44, August 2018, page xxx; Mineralogical Magazine: 82: xxx–xxx.

Internet Links for MengeiteHide

Localities for MengeiteHide

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.
Australia (TL)
 
  • South Australia
    • Flinders Ranges
      • South Flinders Ranges
        • Wilmington
Elliott, P. (2018) Mengeite, IMA 2018-035. CNMNC Newsletter No. 44, August 2018, page xxx; Mineralogical Magazine: 82: xxx–xxx.
Mineral and/or Locality  
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