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Ferriandrosite-(La)

A valid IMA mineral species

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Ferriandrosite-(La), etc.

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan

Ferriandrosite-(La), etc.

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan

Ferriandrosite-(La), etc.

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan

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About Ferriandrosite-(La)Hide

Formula:

(Mn²⁺La)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)

Crystal System:

Monoclinic

Member of:

Allanite Group > Epidote Supergroup

Type Locality:

ⓘ Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan

Ferriandrosite-(La) is the La analogue of ferriandrosite-(Ce) and the M1Fe3+ analogue of androsite.

Unique IdentifiersHide

Mindat ID:

45986

Long-form identifier:

mindat:1:1:45986:8

Similar NamesHide

Ferriandrosite-(Ce)

A valid IMA mineral species - pending publication

(Mn²⁺Ce)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)

IMA Classification of Ferriandrosite-(La)Hide

IMA status:

Approved

IMA Formula:

Mn²⁺LaFe³⁺AlMn²⁺(Si₂O₇)(SiO₄)O(OH)

Approval year:

2013

Classification of Ferriandrosite-(La)Hide

Strunz-mindat (2026):

9.BG.05

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO₄ and Si₂O₇ groups; cations in octahedral [6] and greater coordination

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Fea-La	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of Ferriandrosite-(La)Hide

Mindat Formula:

(Mn²⁺La)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)

Element Weights:

Element	% weight
O	33.286 %
La	22.230 %
Mn	17.584 %
Si	13.484 %
Fe	8.937 %
Al	4.318 %
H	0.161 %

Calculated from ideal end-member formula.

Elements listed:

Al, Fe, H, La, Mn, O, Si - search for minerals with similar chemistry

Crystallography of Ferriandrosite-(La)Hide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/m

Setting:

P2₁/m

Cell Parameters:

a = 8.8779(1) Å, b = 5.7399(1) Å, c = 10.0875(2) Å
β = 113.899(1)°

Ratio:

a:b:c = 1.547 : 1 : 1.757

Unit Cell V:

469.97 Å³

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0020381	Ferriandrosite-(La)	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		2015	Shobu area, Ise City, Mie Prefecture, Japan	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Ferriandrosite-(La)'
loop_
_publ_author_name
'Nagashima M'
'Nishio-Hamane D'
'Tomita N'
'Minakawa T'
'Inaba S'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 79 
_journal_year 2015
_journal_page_first 735
_journal_page_last 753
_publ_section_title
;
 Ferriakasakaite-(La) and ferriandrosite-(La): new epidote-supergroup minerals
 from Ise, Mie Prefecture, Japan
;
_database_code_amcsd 0020381
_chemical_compound_source 'Shobu area, Ise City, Mie Prefecture, Japan'
_chemical_formula_sum 'Mn1.06 Ca.47 La.49 Ce.2 Pr.08 Nd.19 Gd.02 Fe.88 V.28 Al1.17 Ti.07 Mg.1 Si3 O13 H'
_cell_length_a 8.8779
_cell_length_b 5.73995
_cell_length_c 10.0875
_cell_angle_alpha 90
_cell_angle_beta 113.899
_cell_angle_gamma 90
_cell_volume 469.972
_exptl_crystal_density_diffrn      4.304
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Mn1   0.76004   0.75000   0.15192   0.56000   0.01249
Ca1   0.76004   0.75000   0.15192   0.44000   0.01249
La2   0.59324   0.75000   0.42811   0.49000   0.00996
Ce2   0.59324   0.75000   0.42811   0.20000   0.00996
Pr2   0.59324   0.75000   0.42811   0.08000   0.00996
Nd2   0.59324   0.75000   0.42811   0.19000   0.00996
Gd2   0.59324   0.75000   0.42811   0.02000   0.00996
Ca2   0.59324   0.75000   0.42811   0.03000   0.00996
Fe3+1   0.00000   0.00000   0.00000   0.40000   0.00855
Fe2+1   0.00000   0.00000   0.00000   0.05000   0.00855
V1   0.00000   0.00000   0.00000   0.28000   0.00855
Al1   0.00000   0.00000   0.00000   0.20000   0.00855
Ti1   0.00000   0.00000   0.00000   0.07000   0.00855
Al2   0.00000   0.00000   0.50000   0.97000   0.00680
Fe3+2   0.00000   0.00000   0.50000   0.03000   0.00680
Mn3   0.31047   0.25000   0.20997   0.50000   0.01123
Fe2+3   0.31047   0.25000   0.20997   0.40000   0.01123
Mg3   0.31047   0.25000   0.20997   0.10000   0.01123
Si1   0.34536   0.75000   0.03459   1.00000   0.00875
Si2   0.69168   0.25000   0.28127   1.00000   0.00833
Si3   0.19111   0.75000   0.32490   1.00000   0.00781
O1   0.24029   0.98940   0.02320   1.00000   0.01380
O2   0.31587   0.97140   0.36375   1.00000   0.01040
O3   0.80141   0.01260   0.33218   1.00000   0.01220
O4   0.05750   0.25000   0.13670   1.00000   0.01200
O5   0.04950   0.75000   0.15640   1.00000   0.01160
O6   0.07730   0.75000   0.41880   1.00000   0.01090
O7   0.51420   0.75000   0.17610   1.00000   0.01410
O8   0.55210   0.25000   0.34340   1.00000   0.01800
O9   0.60360   0.25000   0.10390   1.00000   0.01530
O10   0.09060   0.25000   0.43140   1.00000   0.00980
H10   0.05300   0.25000   0.32570   1.00000   0.05000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
9.223 Å	(23)
3.510 Å	(46)
2.900 Å	(100)
2.870 Å	(40)
2.710 Å	(35)
2.706 Å	(35)
2.615 Å	(53)
2.573 Å	(26)

Locality:

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan

Comments:

From Type Description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of Ferriandrosite-(La)Hide

Type Locality:

ⓘ Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan

General Appearance of Type Material:

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-43920

Geological Setting of Type Material:

Tephroite ± calcite veinlets cutting a stratiform ferromanganese deposit.

Associated Minerals at Type Locality:

Calcite

Tephroite

Synonyms of Ferriandrosite-(La)Hide

IMA2013-127

Other Language Names for Ferriandrosite-(La)Hide

Dutch:Ferriandrosiet-(La)

German:Ferriandrosit-(La)

Relationship of Ferriandrosite-(La) to other SpeciesHide

Member of:

Allanite Group > Epidote Supergroup

Other Members of Allanite Group:

Akasakaite-(Ce)	(CaCe)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Akasakaite-(La)	(CaLa)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Allanite-(La)	(CaLa)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Allanite-(Nd)	(CaNd)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Allanite-(Sm)	(CaSm)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Allanite-(Y)	(CaY)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m