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Londonite-Rhodizite Series

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About Londonite-Rhodizite SeriesHide

Series Formula:
(Cs,K,Rb)Al4Be4(B,Be)12O28 to (K,Cs)Al4Be4(B,Be)12O28
A series between Londonite and Rhodizite

Individual crystals from Madagascar have typically a Cs-rich rim but exhibit an overall patchy, heterogeneous distribution of Cs-dominant and
K-dominant zones in interior portions of crystals (Simmons et al 2001)


Common AssociatesHide

Associated Minerals Based on Photo Data:
Tourmaline7 photos of Londonite-Rhodizite Series associated with Tourmaline on mindat.org.
Rubellite5 photos of Londonite-Rhodizite Series associated with Rubellite on mindat.org.
Quartz3 photos of Londonite-Rhodizite Series associated with Quartz on mindat.org.
Mn-bearing Fluorapatite3 photos of Londonite-Rhodizite Series associated with Mn-bearing Fluorapatite on mindat.org.
Columbite-(Mn)-Tantalite-(Mn) Series1 photo of Londonite-Rhodizite Series associated with Columbite-(Mn)-Tantalite-(Mn) Series on mindat.org.
Elbaite-Liddicoatite Series1 photo of Londonite-Rhodizite Series associated with Elbaite-Liddicoatite Series on mindat.org.

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 Londonite-Rhodizite SeriesHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Simmons, W.B., F. Pezzotta, A.U. Falster, and K.L. Webber (2001) Londonite, a new mineral species: the Cs-dominant analogue of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. Canadian Mineralogist (2001): 39: 747-755.
Laurs, B. M.; Pezzotta, F.; Simmons, W.; Falster, A. U & Muhlmeister, S. (2002): Rhodizite-londonite from the Antsongombato pegmatite, Central Madagascar. Gems & Mineralogy. 38 (4), 326-339

Internet Links for Londonite-Rhodizite SeriesHide

Localities for Londonite-Rhodizite SeriesHide

ⓘ - 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.
Madagascar
 
  • Antananarivo Province
    • Vakinankaratra Region
      • Antsirabe II District
        • Ibity Commune
          • Sahatany Valley
Novák, M., Cempírek, J., Gadas, P., Škoda, R., Galiová, M. V., Pezzotta, F. and Groat, L. A. (2015): Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. Canadian Mineralogist. 53: 357-374
      • Betafo District
        • Andrembesoa Commune
          • Ampanivana area
Simmons, W.B., F. Pezzotta, A.U. Falster, and K.L. Webber (2001) Londonite, a new mineral species: the Cs-dominant analogue of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. Canadian Mineralogist (2001): 39: 747-755.
Knut Edvard Larsen collection # M-505
        • Anosiarivo Manapa Commune
          • Antsentsindrano
Laurs, B. M.; Pezzotta, F.; Simmons, W.; Falster, A. U & Muhlmeister, S. (2002): Rhodizite-londonite from the Antsongombato pegmatite, Central Madagascar. Gems & Mineralogy. 38 (4), 326-339
          • Manapa pegmatite Field
Arliguie M collection, photo id 138444
  • Fianarantsoa Province
    • Amoron'i Mania Region
      • Ambositra District
        • Sahatsiho-Ambohimanjaka Commune
Simmons, W.B., F. Pezzotta, A.U. Falster, and K.L. Webber (2001) Londonite, a new mineral species: the Cs-dominant analogue of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. Canadian Mineralogist (2001): 39: 747-755. (Fig. 3, sample C)
          • Manandona Valley
Knut Edvard Larsen collection; Simmons, W.B., F. Pezzotta, A.U. Falster, and K.L. Webber (2001) Londonite, a new mineral species: the Cs-dominant analogue of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. Canadian Mineralogist (2001): 39: 747-755.
    • Haute Matsiatra Region
      • Ambohimahasoa District
Oleg Lopatkin photo & collection
Mineral and/or Locality  
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