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Manganiakasakaite-(La)

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About Manganiakasakaite-(La)Hide

Formula:
{CaLa}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Colour:
Dark brown
Hardness:
5 - 5½
Specific Gravity:
4.09 (Calculated)
Crystal System:
Monoclinic
A monoclinic (P21/m) epidote supergroup mineral.
Mn3+-dominant analogue of Ferriakasakaite-(La).
It is virtually impossible to distinguish between Manganiakasakaite-(La) and Ferriakasakaite-(Ce) by physical properties.

Manganiakasakaite-(La)-Manganiandrosite-(La) Series.




Classification of Manganiakasakaite-(La)Hide

Approved
Approval Year:
2017
First Published:
2019
Approval History:
Described without approval in 1991.

Physical Properties of Manganiakasakaite-(La)Hide

Transparency:
Transparent
Colour:
Dark brown
Streak:
Brown
Hardness:
5 - 5½ on Mohs scale
Hardness Data:
Estimated
Comment:
hardness was not measured, only estimated
Tenacity:
Brittle
Fracture:
Irregular/Uneven, Conchoidal
Density:
4.09 g/cm3 (Calculated)

Chemical Properties of Manganiakasakaite-(La)Hide

Formula:
{CaLa}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
IMA Formula:
CaLa(Mn3+AlMn2+)(Si2O7)(SiO4)O(OH)

Crystallography of Manganiakasakaite-(La)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 8.906(1) Å, b = 5.7294(6) Å, c = 10.113(1) Å
β = 113.713(5)°
Ratio:
a:b:c = 1.554 : 1 : 1.765
Unit Cell V:
472.46 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.516Å(m)
2.899Å(s)
2.711Å(ms)
2.621Å(m)
2.179Å(mw)
2.109Å(m)
1.665Å(m)
1.438Å(m)
Comments:
From Type Description.

Type Occurrence of Manganiakasakaite-(La)Hide

General Appearance of Type Material:
As subhedral grains embedded in pyroxmangite
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, catalogue number 19907
Empirical Formula of Type Material:
A(1)(Ca0.62Mn2+0.38) A(2)(La0.52Nd0.08Pr0.07Ce0.07Y0.01Ca0.25)M(1)(Mn3+0.52Fe3+0.28Al0.18V3+0.01)M(2)Al1.00M(3)(Mn2+0.60Mn3+0.27Mg0.13)T(1-3)(Si2.99Al0.01)O12(OH)
Geological Setting of Type Material:
Mn ore deposit
Associated Minerals at Type Locality:
Reference:
Biagioni, C., Bonazzi, P., Pasero, M., Zaccarini, F., Balestra, C., Bracco, R., Ciriotti, M.E. (2019): Manganiakasakaite-(La) and Ferriakasakaite-(Ce), Two New Epidote Supergroup Minerals from Piedmont, Italy. Minerals, 9, 353

Synonyms of Manganiakasakaite-(La)Hide

Relationship of Manganiakasakaite-(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
Allanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon.
Androsite-(Ce){Mn2+REE}{AlAlMn2+}(SiO4)(Si2O7)O(OH)
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
Ferriakasakaite-(La){CaLa}{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-(Ce){Mn2+REE}{Fe3+AlMn2+}(SiO4)(Si2O7)O(OH)
Ferriandrosite-(La){MnLa}{Fe3+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
Manganiandrosite-(La){Mn2+La}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)Mon.
Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
UM1989-32-SiO:AlCaFeHREE(Ca0.50.5)(Ce,La,Nd)Fe3+Al2(Si2O7)(SiO4)O(OH)
UM1994-25-SiO:AlCaFeHREEV{CaREE}{V3+AlFe2+}(SiO4)(Si2O7)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 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
Forms a series with:

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 Manganiakasakaite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Smol'yaninova, V.N., Nasedkina V.H. (1991) Orthite with unusually high manganese content. Izvestiya AN SSSR, seriya geologicheskaya: 6: 149-154 (in Russian).
Biagioni, C., Ciriotti, M.E., Bracco, R., Pasero, M. and Zaccarini, F. (2017) Manganiakasakaite-(La), IMA 2017- 028. CNMNC Newsletter No. 38, August 2017, page 1036; Mineralogical Magazine: 81: 1033–1038.
Biagioni, C., Bonazzi, P., Pasero, M., Zaccarini, F., Balestra, C., Bracco, R., Ciriotti, M.E. (2019): Manganiakasakaite-(La) and Ferriakasakaite-(Ce), Two New Epidote Supergroup Minerals from Piedmont, Italy. Minerals, 9, 353; https://doi.org/10.3390/min9060353

Internet Links for Manganiakasakaite-(La)Hide

Localities for Manganiakasakaite-(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.
Italy (TL)
 
  • Piedmont
    • Cuneo Province
      • Bellino
Biagioni, C., Ciriotti, M.E., Bracco, R., Pasero, M. and Zaccarini, F. (2017) Manganiakasakaite-(La), IMA 2017- 028. CNMNC Newsletter No. 38, August 2017, page 1036; Mineralogical Magazine: 81: 1033– 1038. ; Biagioni, C., Bonazzi, P., Pasero, M., Zaccarini, F., Balestra, C., Bracco, R., Ciriotti, M.E. (2019): Manganiakasakaite-(La) and Ferriakasakaite-(Ce), Two New Epidote Supergroup Minerals from Piedmont, Italy. Minerals, 9, 353; https://doi.org/10.3390/min9060353
Russia
 
  • Altai Republic
    • Ust-Koksinsky District
Pavel M. Kartashov analytical data and - Smol'yaninova, V.N., Nasedkina V.H. (1991) Orthite with unusually high manganese content, - Izvestiya AN SSSR, seriya geologicheskaya, N6, p. 149-154 (in Russian).
 
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