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About Ferriakasakaite-(La)Hide

Masahide Akasaka
Crystal System:
Named in 2014 by Mariko Nagashima, D. Nishio-Hamane, N. Tomita, T. Minakawa, and S. Inaba in honor of Masahide Akasaka (b. 1950), professor at Shimane University, Japan, for "his outstanding contributions to mineralogy, especially to the study of rock-forming minerals occurring in Mn–Fe ore deposits and the natural and synthetic epidote-supergroup minerals." The name includes a prefix and a suffix indicating constituent elements according to the epidote-supergroup nomenclature.
Allanite Group of the Epidote Supergroup. Ferriakasakaite-(La) has a new combination of dominant cations at A1(Ca) and M3(Mn2+), which are the key sites to determine a root name for epidote-supergroup minerals.

Classification of Ferriakasakaite-(La)Hide

Approval Year:
First Published:

Chemical Properties of Ferriakasakaite-(La)Hide

IMA Formula:
Idealised Formula:

Crystallography of Ferriakasakaite-(La)Hide

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 8.8733(2) Å, b = 5.7415(1) Å, c = 10.0805(3) Å
β = 113.845(2)°
a:b:c = 1.545 : 1 : 1.756
Unit Cell V:
469.73 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
From Type Description.

Type Occurrence of Ferriakasakaite-(La)Hide

Place of Conservation of Type Material:
Type material is deposited in the collections of the National Museum of Nature and Science, Tsukuba, Japan, specimen number NSM M-43919
Geological Setting of Type Material:
In tephroite ± calcite veinlets cutting a stratiform ferromanganese deposit.
Associated Minerals at Type Locality:

Synonyms of Ferriakasakaite-(La)Hide

Other Language Names for Ferriakasakaite-(La)Hide

Relationship of Ferriakasakaite-(La) to other SpeciesHide

Other Members of this group:
Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Allanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Allanite-(Nd){CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Dissakisite-(Ce){CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Dissakisite-(La){CaLa}{Al2Mg}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriakasakaite-(Ce) {CaCe}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriallanite-(Ce){CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriallanite-(La){CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Ferriandrosite-(La){MnLa}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Manganiakasakaite-(La){CaLa}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Manganiandrosite-(Ce){Mn2+Ce}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
Unnamed (Ce- and Mn-analogue of Ferriakasakaite-(La)){Ca,(Ce,La,Nd),Mn2+}2(Mn3+,Fe3+,Al)Al(Mn2+,Mg)(Si2O7)(SiO4)O(OH)
Unnamed (Mg-analogue of Ferriallanite-(Ce)){CaCe}{(Fe3+,Al)Al(Mg,Fe2+)}(Si2O7)(SiO4)O(OH)
Unnamed (Mn-analogue of Ferriallanite-(Ce)){CaCe}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)
Vanadoallanite-(La){CaLa}{V3+AlFe2+}(Si2O7)(SiO4)O(OH) Mon. 2/m : P21/m
Vanadoandrosite-(Ce){Mn2+Ce}{V3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Ferriandrosite-(La)3 photos of Ferriakasakaite-(La) associated with Ferriandrosite-(La) 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 Ferriakasakaite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nagashima, M., Nishio-Hamane, D., Tomita, N., Minakawa, T., Inaba, S. (2014) Ferriakasakaite-(La), IMA 2013-126. CNMNC Newsletter No. 20, June 2014, page 551. Mineralogical Magazine: 78: 549-558.
Nagashima, M., Nishio-Hamane, D., Tomita, N., Minakawa, T., Inaba, S. (2015) Ferriakasakaite-(La) and ferriandrosite-(La): new epidote-supergroup minerals from Ise, Mie Prefecture, Japan. Mineralogical Magazine: 79: 735-753.

Internet Links for Ferriakasakaite-(La)Hide

Localities for Ferriakasakaite-(La)Hide

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.
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Mendig
        • Niedermendig
Chukanov, N., Zubkova, N., Schäfer, Ch., Varlamov, D., Ermolaeva, V., Polekhovsky, Y., K. Jancev, J., Pekov, I., Pushcharovsky, D. (2018): Ferriakasakaite-(La): new finds, new data and relationships with other allanite-group minerals, European Journal of Mineralogy, in press
Japan (TL)
  • Mie
    • Ise City
      • Shobu
Nagashima, M., Nishio-Hamane, D., Tomita, N., Minakawa, T. and Inaba, S. (2014) Ferriakasakaite-(La), IMA 2013-126. CNMNC Newsletter No. 20, June 2014, page 551; Mineralogical Magazine, 78, 549-558.; Nagashima, M., Nishio-Hamane, D., Tomita, N., Minakawa, T., Inaba, S. (2015): Ferriakasakaite-(La) and ferriandrosite-(La): new epidote-supergroup minerals from Ise, Mie Prefecture, Japan. Mineralogical Magazine, 79, 735-753.
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Hexiong Yang
Mineral and/or Locality  
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