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Kenotobermorite-4O

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Crystal System:
Orthorhombic
Name:
First described as the MDO1 polytype of tobermorite 11Å from N’Chwaning II Mine, Kalahari Manganese Field, South Africa.. Redefined by Biagioni et al. (2015) as a natural polytype of kenotobermorite.
A polytype of Kenotobermorite


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Crystallography of Kenotobermorite-4OHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 11.265 Å, b = 7.385 Å, c = 44.970 Å
Ratio:
a:b:c = 1.525 : 1 : 6.089
Unit Cell V:
3,741.15 ų (Calculated from Unit Cell)
Comment:
Spacegroup: F2dd

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 Kenotobermorite-4OHide

Reference List:
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Merlino S, Bonaccorsi E, Armbruster T (2001) The real structure of tobermorite 11Å: normal and anomalous forms, OD character and polytypic modification. European Journal of Mineralogy 13, 577-590
Biagioni, C., Merlino, S., Bonaccorsi, E. (2015): The tobermorite supergroup: a new nomenclature. Mineralogical Magazine, 79, 485-495

Internet Links for Kenotobermorite-4OHide

Localities for Kenotobermorite-4OHide

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.
South Africa
 
  • Northern Cape Province
    • Kalahari manganese field
      • Kuruman
        • N'Chwaning Mines
Merlino S, Bonaccorsi E, Armbruster T (2001) The real structure of tobermorite 11Å: normal and anomalous forms, OD character and polytypic modification. European Journal of Mineralogy 13, 577-590; Biagioni, C., Merlino, S., Bonaccorsi, E. (2015): The tobermorite supergroup: a new nomenclature. Mineralogical Magazine, 79, 485-495
Mineral and/or Locality  
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