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Ferriakasakaite-(La)

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Masahide Akasaka
Formula:
{CaLa}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)
Crystal System:
Monoclinic
Name:
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 include 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)

Approved
Approval Year:
2013
First Published:
2015

Chemical Properties of Ferriakasakaite-(La)

Formula:
{CaLa}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)
IMA Formula:
CaLaFe3+AlMn2+(Si2O7)(SiO4)O(OH)
Idealised Formula:
A1CaA2LaM1Fe3+M2AlM3Mn2+(SiO4)(Si2O7)O(OH)

Crystallography of Ferriakasakaite-(La)

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 8.8733(2) Å, b = 5.7415(1) Å, c = 10.0805(3) Å
β = 113.845(2)°
Ratio:
a:b:c = 1.545 : 1 : 1.756
Unit Cell V:
469.73 ų

X-Ray Powder Diffraction

Powder Diffraction Data:
d-spacingIntensity
9.220(26)
3.509(47)
2.899(100)
2.871(40)
2.710(35)
2.706(35)
2.614(53)
2.573(26)
Comments:
From Type Description.

Type Occurrence of Ferriakasakaite-(La)

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)

Other Language Names for Ferriakasakaite-(La)

Relationship of Ferriakasakaite-(La) to other Species

Other Members of this group:
Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Allanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Allanite-(Nd){CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Allanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Androsite-(Ce){Mn2+REE}{AlAlMn2+}(SiO4)(Si2O7)O(OH)
Dissakisite-(Ce){CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)
Dissakisite-(La){CaLa}{Al2Mg}(Si2O7)(SiO4)O(OH)
Ferriallanite-(Ce){CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Ferriallanite-(La){CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Ferriandrosite-(Ce){Mn2+REE}{Fe3+AlMn2+}(SiO4)(Si2O7)O(OH)
Ferriandrosite-(La){MnLa}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)
Manganiandrosite-(Ce){Mn2+Ce}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Manganiandrosite-(La){Mn2+La}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
UM1989-32-SiO:AlCaFeHREE(Ca0.50.5)(Ce,La,Nd)Fe3+Al2(Si2O7)(SiO4)O(OH)
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 Ferriakasakaite-(La)){CaLa}{Mn3+AlMn2+}(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)
Vanadoandrosite-(Ce){Mn2+Ce}{V3+AlMn2+}(Si2O7)(SiO4)O(OH)

Common Associates

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

Other Information

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)

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)

mindat.org URL:
https://www.mindat.org/min-45983.html
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Localities for Ferriakasakaite-(La)

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Germany
 
  • Rhineland-Palatinate
    • Eifel
      • Laach lake volcanic complex
        • Mendig
          • Niedermendig
in the collection of Christof Schäfer
Japan (TL)
 
  • Honshu Island
    • Kinki region
      • Mie Prefecture
        • 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.
USA
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Heixong Yang
Mineral and/or Locality  
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