Dissakisite-(La)

A valid IMA mineral species

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Dissakisite-(La), etc.

Mochalin Log, Kyshtym, Chelyabinsk Oblast, Russia

Dissakisite-(La), etc.

Mochalin Log, Kyshtym, Chelyabinsk Oblast, Russia

Dissakisite-(La), etc.

Mochalin Log, Kyshtym, Chelyabinsk Oblast, Russia

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About Dissakisite-(La)Hide

Formula:

(CaLa)(AlAlMg)O[Si₂O₇][SiO₄](OH)

Colour:

Black to very dark brown.

Lustre:

Vitreous

Hardness:

6½ - 7

Specific Gravity:

3.79

Crystal System:

Monoclinic

Member of:

Allanite Group > Epidote Supergroup

Name:

For its close relationship with dissakisite-(Ce).

Type Locality:

ⓘ Hochwart - Vedetta Alta, Ulten (Ultimo), Burggrafenamt (Burgraviato), South Tyrol, Trentino-Alto Adige/Südtirol, Italy

A member of the Allanite Subgroup of the Epidote Group.

Dissakisite-(La) is the Mg-analogue of allanite-(La), and it also forms a continuous series with dissakisite-(Ce). Like the latter mineral, it can be found in Fe-poor environments.

Unique IdentifiersHide

Mindat ID:

27401

Long-form identifier:

mindat:1:1:27401:8

Similar NamesHide

Dissakisite
Dissakisite-(Ce)	A valid IMA mineral species	(CaCe)(AlAlMg)O[Si₂O₇][SiO₄](OH)

IMA Classification of Dissakisite-(La)Hide

IMA status:

Approved

IMA Formula:

CaLaMgAl₂(Si₂O₇)(SiO₄)O(OH)

Approval year:

2003

Classification of Dissakisite-(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.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference for Standard
Dis-La	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Dis	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Dissakisite-(La)Hide

Lustre:

Vitreous

Transparency:

Translucent

Colour:

Black to very dark brown.

Streak:

Grey-greenish

Hardness:

6½ - 7 on Mohs scale

Tenacity:

Brittle

Cleavage:

Imperfect/Fair
(001)

Fracture:

Conchoidal

Density:

3.79 g/cm³ (Measured) 3.84 g/cm³ (Calculated)

Chemistry of Dissakisite-(La)Hide

Mindat Formula:

(CaLa)(AlAlMg)O[Si₂O₇][SiO₄](OH)

Element Weights:

Element	% weight
O	37.782 %
La	25.232 %
Si	15.305 %
Al	9.802 %
Ca	7.280 %
Mg	4.415 %
H	0.183 %

Calculated from ideal end-member formula.

Elements listed:

Al, Ca, H, La, Mg, O, Si - search for minerals with similar chemistry

Common Impurities:

Cr,Fe,Th,Ti

Crystallography of Dissakisite-(La)Hide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/m

Cell Parameters:

a = 8.9616 Å, b = 5.7265 Å, c = 10.2353 Å
α = 115.193°

Ratio:

a:b:c = 1.565 : 1 : 1.787

Unit Cell V:

475.3 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	Year	Temp (K)
0003997	Dissakisite-(La)	Lavina B, Carbonin S, Russo U, Tumiati S (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage American Mineralogist 91 104-110	2006	293
0003996	Dissakisite-(La)	Lavina B, Carbonin S, Russo U, Tumiati S (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage American Mineralogist 91 104-110	2006	293
0003995	Dissakisite-(La)	Lavina B, Carbonin S, Russo U, Tumiati S (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage American Mineralogist 91 104-110	2006	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Dissakisite-(La)'
loop_
_publ_author_name
'Lavina B'
'Carbonin S'
'Russo U'
'Tumiati S'
_journal_name_full 'American Mineralogist'
_journal_volume 91 
_journal_year 2006
_journal_page_first 104
_journal_page_last 110
_publ_section_title
;
 The crystal structure of dissakisite-(La) and structural variations
 after annealing of radiation damage
 Sample: DISS3 annealed 700 C for 18 (3+15) hours
;
_database_code_amcsd 0003997
_chemical_formula_sum 'Ca1.195 Th.09 Fe.404 La.315 Mn.009 U.003 Na.002 Er.001 Ce.262 Nd.038 Pr.019 Sr.01 Sm.002 Gd.001 Al1.836 Cr.148 Ti.03 V.008 Sc.002 Ga.001 Mg.622 Zn.015 Ni.01 Si2.97 P.009 O13 H'
_cell_length_a 8.934
_cell_length_b 5.6939
_cell_length_c 10.180
_cell_angle_alpha 90
_cell_angle_beta 115.153
_cell_angle_gamma 90
_cell_volume 468.745
_exptl_crystal_density_diffrn      3.906
_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
CaA1   0.75687   0.75000   0.15098   0.79200   0.01401
ThA1   0.75687   0.75000   0.15098   0.09000   0.01401
FeA1   0.75687   0.75000   0.15098   0.05300   0.01401
LaA1   0.75687   0.75000   0.15098   0.05000   0.01401
MnA1   0.75687   0.75000   0.15098   0.00900   0.01401
UA1   0.75687   0.75000   0.15098   0.00300   0.01401
NaA1   0.75687   0.75000   0.15098   0.00200   0.01401
ErA1   0.75687   0.75000   0.15098   0.00100   0.01401
CaA2   0.59811   0.75000   0.42772   0.40300   0.01472
LaA2   0.59811   0.75000   0.42772   0.26500   0.01472
CeA2   0.59811   0.75000   0.42772   0.26200   0.01472
NdA2   0.59811   0.75000   0.42772   0.03800   0.01472
PrA2   0.59811   0.75000   0.42772   0.01900   0.01472
SrA2   0.59811   0.75000   0.42772   0.01000   0.01472
SmA2   0.59811   0.75000   0.42772   0.00200   0.01472
GdA2   0.59811   0.75000   0.42772   0.00100   0.01472
AlM1   0.00000   0.00000   0.00000   0.81300   0.00884
CrM1   0.00000   0.00000   0.00000   0.14800   0.00884
TiM1   0.00000   0.00000   0.00000   0.03000   0.00884
VM1   0.00000   0.00000   0.00000   0.00800   0.00884
ScM1   0.00000   0.00000   0.00000   0.00200   0.00884
GaM1   0.00000   0.00000   0.00000   0.00100   0.00884
AlM2   0.00000   0.00000   0.50000   0.94800   0.00749
FeM2   0.00000   0.00000   0.50000   0.05200   0.00749
MgM3   0.29668   0.25000   0.21849   0.62200   0.01028
FeM3   0.29668   0.25000   0.21849   0.29900   0.01028
AlM3   0.29668   0.25000   0.21849   0.05400   0.01028
ZnM3   0.29668   0.25000   0.21849   0.01500   0.01028
NiM3   0.29668   0.25000   0.21849   0.01000   0.01028
Si1   0.33797   0.75000   0.04138   0.99000   0.00747
Al1   0.33797   0.75000   0.04138   0.00700   0.00747
P1   0.33797   0.75000   0.04138   0.00300   0.00747
Si2   0.68326   0.25000   0.27692   0.99000   0.00848
Al2   0.68326   0.25000   0.27692   0.00700   0.00848
P2   0.68326   0.25000   0.27692   0.00300   0.00848
Si3   0.18599   0.75000   0.32023   0.99000   0.00679
Al3   0.18599   0.75000   0.32023   0.00700   0.00679
P3   0.18599   0.75000   0.32023   0.00300   0.00679
O1   0.23425   0.99205   0.03383   1.00000   0.01396
O2   0.30827   0.97703   0.35893   1.00000   0.01365
O3   0.79292   0.01358   0.33810   1.00000   0.01601
O4   0.05402   0.25000   0.12943   1.00000   0.01100
O5   0.04522   0.75000   0.14761   1.00000   0.00944
O6   0.06646   0.75000   0.40680   1.00000   0.01226
O7   0.51249   0.75000   0.17820   1.00000   0.01590
O8   0.53169   0.25000   0.31990   1.00000   0.02821
O9   0.62027   0.25000   0.10062   1.00000   0.02606
O10   0.08357   0.25000   0.42827   1.00000   0.01198
H   0.15600   0.25000   0.30300   1.00000   0.05000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
CaA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
ThA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
FeA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
LaA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
MnA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
UA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
NaA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
ErA1 0.02087 0.01221 0.01304 0.00000 0.01115 0.00000
CaA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
LaA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
CeA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
NdA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
PrA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
SrA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
SmA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
GdA2 0.01262 0.01781 0.01125 0.00000 0.00270 0.00000
AlM1 0.00830 0.00715 0.00886 -0.00025 0.00151 -0.00001
CrM1 0.00830 0.00715 0.00886 -0.00025 0.00151 -0.00001
TiM1 0.00830 0.00715 0.00886 -0.00025 0.00151 -0.00001
VM1 0.00830 0.00715 0.00886 -0.00025 0.00151 -0.00001
ScM1 0.00830 0.00715 0.00886 -0.00025 0.00151 -0.00001
GaM1 0.00830 0.00715 0.00886 -0.00025 0.00151 -0.00001
AlM2 0.00702 0.00599 0.00822 0.00004 0.00205 -0.00066
FeM2 0.00702 0.00599 0.00822 0.00004 0.00205 -0.00066
MgM3 0.00850 0.00770 0.00913 0.00000 -0.00156 0.00000
FeM3 0.00850 0.00770 0.00913 0.00000 -0.00156 0.00000
AlM3 0.00850 0.00770 0.00913 0.00000 -0.00156 0.00000
ZnM3 0.00850 0.00770 0.00913 0.00000 -0.00156 0.00000
NiM3 0.00850 0.00770 0.00913 0.00000 -0.00156 0.00000
Si1 0.00703 0.00667 0.00735 0.00000 0.00174 0.00000
Al1 0.00703 0.00667 0.00735 0.00000 0.00174 0.00000
P1 0.00703 0.00667 0.00735 0.00000 0.00174 0.00000
Si2 0.00924 0.00753 0.00885 0.00000 0.00402 0.00000
Al2 0.00924 0.00753 0.00885 0.00000 0.00402 0.00000
P2 0.00924 0.00753 0.00885 0.00000 0.00402 0.00000
Si3 0.00619 0.00818 0.00624 0.00000 0.00288 0.00000
Al3 0.00619 0.00818 0.00624 0.00000 0.00288 0.00000
P3 0.00619 0.00818 0.00624 0.00000 0.00288 0.00000
O1 0.01053 0.01019 0.02062 0.00192 0.00610 0.00234
O2 0.01400 0.01617 0.01158 -0.00561 0.00622 -0.00331
O3 0.01398 0.00825 0.01704 0.00079 -0.00185 -0.00114
O4 0.00917 0.01116 0.01107 0.00000 0.00275 0.00000
O5 0.00819 0.01072 0.00718 0.00000 0.00111 0.00000
O6 0.01447 0.01176 0.01507 0.00000 0.01064 0.00000
O7 0.01158 0.01717 0.01226 0.00000 -0.00139 0.00000
O8 0.02525 0.03662 0.03320 0.00000 0.02247 0.00000
O9 0.03107 0.03781 0.01264 0.00000 0.01249 0.00000
O10 0.01074 0.01186 0.01400 0.00000 0.00590 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.926 Å	(100)
2.860 Å	(53)
2.553 Å	(51)
3.526 Å	(49)
2.699 Å	(44)

Comments:

Hochwart - Vedetta Alta, Italy. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust	>4.50
8 : Mafic igneous rocks
Stage 4a: Earth’s earliest continental crust	>4.4-3.0
19 : Granitic intrusive rocks
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of Dissakisite-(La)Hide

Type Locality:

ⓘ Hochwart - Vedetta Alta, Ulten (Ultimo), Burggrafenamt (Burgraviato), South Tyrol, Trentino-Alto Adige/Südtirol, Italy

General Appearance of Type Material:

Up to 2.5cm-sized black to very dark brown anhedral nodules, thick blades and smaller grains.

Place of Conservation of Type Material:

(-) Muséum National d'Histoire Naturelle, Paris, France (203.133)
(-) Museo di Mineralogia e Petrologia dell'Università di Padova, Padova, Italy

Geological Setting of Type Material:

In Alpine-type peridotite, under eclogite-facies conditions.

Associated Minerals at Type Locality:

Amphibole Supergroup	'Apatite'	Calcite	Clinochlore	'Copper Sulphides'
Dolomite	Olivine Group	Pentlandite	Phlogopite	Pyroxene Group
Spinel	Thorianite	Thorite	Uraninite	Zircon

Synonyms of Dissakisite-(La)Hide

IMA2003-007

Dissakisite (in part)

Other Language Names for Dissakisite-(La)Hide

Dutch:Dissakisiet-(La)

German:Dissakisit-(La)

Russian:Диссакисит-(La)

Relationship of Dissakisite-(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
'Androsite-(Ce)'	(Mn²⁺Ce)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)
Dissakisite-(Ce)	(CaCe)(AlAlMg)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Ferriakasakaite-(Ce)	(CaCe)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Ferriakasakaite-(La)	(CaLa)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Ferriallanite-(Ce)	(CaCe)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Ferriallanite-(La)	(CaLa)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Ferriandrosite-(Ce)	(Mn²⁺Ce)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Ferriandrosite-(La)	(Mn²⁺La)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Manganiakasakaite-(La)	(CaLa)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Manganiandrosite-(Ce)	(Mn²⁺Ce)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Manganiandrosite-(La)	(Mn²⁺La)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
'Oxyallanite'	{CaCe}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(O) (?)
Uedaite-(Ce)	(Mn²⁺Ce)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
'UM1989-32-SiO:AlCaFeHREE'	(Ca_0.5◻_0.5REE)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
'UM1994-25-SiO:AlCaFeHREEV'	(CaREE)(V³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)
'Unnamed (Mg-analogue of Ferriallanite-(Ce))'	(CaCe)(Fe³⁺AlMg)O[Si₂O₇][SiO₄](OH)
'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))'	(CaCe)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)
Vanadoakasakaite-(Ce)	(CaCe)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Vanadoakasakaite-(La)	(CaLa)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Vanadoallanite-(La)	(CaLa)(V³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Vanadoandrosite-(Ce)	(Mn²⁺Ce)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
Vanadoandrosite-(La)	Mn²⁺La(V³⁺AlMn²⁺)(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
Vielleaureite-(Ce)	Mn²⁺Ce(MgAlMn²⁺)(Si₂O₇)(SiO₄)F(OH)	Mon. 2/m : P2₁/m

Common AssociatesHide

Associations Based on Photo Data:

1 photo of Dissakisite-(La) associated with Bastnäsite-(La)	La(CO₃)F
1 photo of Dissakisite-(La) associated with Britholite-(Ce)	(Ce,Ca)₅(SiO₄)₃OH

Related Minerals - Strunz-mindat Grouping Hide

9.BG.	Alumovesuvianite	Ca₁₉AlAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.	Alnaperbøeite-(Ce)	Ca(Ce_2.5Na_0.5)(AlAl₂Al)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.	Zilbermintsite-(La)	(CaLa₅)(Fe³⁺Al₃Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	Mon. 2/m : P2₁/m
9.BG.	Heflikite	(CaCa)(AlAlSc)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.	Magnesiovesuvianite	Ca₁₉MgAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/m : P4/n
9.BG.	Zoisite-(Pb)	(CaPb)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Orth. mmm(2/m2/m2/m) : Pnma
9.BG.	Shuiskite-(Cr)	Ca₂Cr³⁺Cr³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.	Radekškodaite Group
9.BG.05	Manganiandrosite-(Ce)	(Mn²⁺Ce)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Dissakisite-(Ce)	(CaCe)(AlAlMg)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Sm)	(CaSm)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Hancockite	(CaPb)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Dollaseite-(Ce)	(CaCe)(MgAlMg)F[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a v	'Unnamed (Ga-analogue of Epidote)'	(CaCa)(AlAlGa³⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05a	Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Epidote-(Sr)	(CaSr)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Vanadoandrosite-(Ce)	(Mn²⁺Ce)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Vanadoallanite-(La)	(CaLa)(V³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	'Unnamed (Mg-analogue of Ferriallanite-(Ce))'	(CaCe)(Fe³⁺AlMg)O[Si₂O₇][SiO₄](OH)
9.BG.05b	Ferriallanite-(La)	(CaLa)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Uedaite-(Ce)	(Mn²⁺Ce)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Tweddillite	(CaSr)(Mn³⁺AlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Åskagenite-(Nd)	(Mn²⁺Nd)(AlAlFe³⁺)O[Si₂O₇][SiO₄]O	Mon. 2/m : P2₁/m
9.BG.05	Piemontite-(Pb)	(CaPb)(AlAlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(La)	(CaLa)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Y)	(CaY)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Piemontite	(CaCa)(AlAlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Akasakaite-(Ce)	(CaCe)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Manganiandrosite-(La)	(Mn²⁺La)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Akasakaite-(La)	(CaLa)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Vanadoakasakaite-(La)	(CaLa)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Khristovite-(Ce)	(CaCe)(MgAlMn²⁺)F[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriakasakaite-(La)	(CaLa)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Ferriandrosite-(La)	(Mn²⁺La)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	'Androsite-(Ce)'	(Mn²⁺Ce)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05	Vielleaureite-(Ce)	Mn²⁺Ce(MgAlMn²⁺)(Si₂O₇)(SiO₄)F(OH)	Mon. 2/m : P2₁/m
9.BG.05	Ferriandrosite-(Ce)	(Mn²⁺Ce)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriallanite-(Ce)	(CaCe)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))'	(CaCe)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05b	Vanadoakasakaite-(Ce)	(CaCe)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Piemontite-(Sr)	(CaSr)(AlAlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Niigataite	(CaSr)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriakasakaite-(Ce)	(CaCe)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Vanadoandrosite-(La)	Mn²⁺La(V³⁺AlMn²⁺)(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Nd)	(CaNd)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	'UM1989-32-SiO:AlCaFeHREE'	(Ca_0.5◻_0.5REE)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05a	Mukhinite	(CaCa)(AlAlV³⁺)O[Si₂O₇][SiO₄](OH)	Mon.
9.BG.05b	Manganiakasakaite-(La)	(CaLa)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.10	Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Orth. mmm(2/m2/m2/m) : Pnma
9.BG.15	Macfallite	Ca₂Mn³⁺₃(SiO₄)(Si₂O₇)(OH)₃	Mon. 2/m : P2₁/m
9.BG.15	Sursassite	Mn²⁺₂Al₃(SiO₄)(Si₂O₇)(OH)₃	Mon. 2/m : P2₁/m
9.BG.20	Pumpellyite-(Al)	Ca₂AlAl₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m
9.BG.20	Shuiskite-(Mg)	Ca₂MgCr³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Julgoldite-(Fe2+)	Ca₂Fe²⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Okhotskite	Ca₂Mn²⁺Mn³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Julgoldite-(Mg)	Ca₂MgFe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Poppiite	Ca₂V³⁺V³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.20	Julgoldite-(Fe3+)	Ca₂Fe³⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
9.BG.20	Pumpellyite-(Fe2+)	Ca₂Fe²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Pumpellyite-(Fe3+)	Ca₂Fe³⁺Al₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m
9.BG.20	Pumpellyite-(Mg)	Ca₂MgAl₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Pumpellyite-(Mn2+)	Ca₂Mn²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.25	Ganomalite	Pb₉Ca₅Mn(Si₂O₇)₄(SiO₄)O	Hex. 6 : P6
9.BG.25	Wayneburnhamite	Pb₉Ca₆(Si₂O₇)₃(SiO₄)₃	Hex. 6 : P6
9.BG.30	Rustumite	Ca₁₀(Si₂O₇)₂(SiO₄)(OH)₂Cl₂	Mon. 2/m : B2/b
9.BG.35	Modraite	Ca₁₉Fe²⁺Al₄(Al₆Fe²⁺₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Fluorvesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(F,OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Milanriederite	(Ca₁₈[REE])Fe³⁺Al₄(Mg₄Al₄)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Manaevite-(Ce)	(Ca₁₃Ce₄[H₂O]₂)Mg(Al₃Mg)(Mg₃Ti₃Fe³⁺₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₈(H₄O₄)₂]O(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Hongheite	Ca₁₉Fe²⁺Al₄(Fe³⁺,Mg)₈(◻₄)B[Si₂O₇]₄[(SiO₄)₁₀]O(OH,O)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Wiluite	Ca₁₉MgAl₄(Al,Mg)₈(B,◻)₄◻[Si₂O₇]₄[(SiO₄)₁₀]O(O,OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Cyprine	Ca₁₉Cu²⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/m : P4/n
9.BG.35	Manganvesuvianite	Ca₁₉Mn³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.40	Vyuntspakhkite-(Y)	(Y,Yb)₄Al_2.5-1.5(Si,Al)_1.5-2.5(SiO₄)₄O(OH)₇	Mon. 2/m : P2₁/c
9.BG.45	Dellaite	Ca₆Si₃O₁₁(OH)₂	Tric.
9.BG.50	Ferriperbøeite-(Ce)	CaCe₃(Fe³⁺Al₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Perbøeite-(La)	CaLa₃(AlAl₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Perbøeite-(Ce)	CaCe₃(AlAl₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Gatelite-(Ce)	CaCe₃(AlAl₂Mg)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/c
9.BG.50	Ferriperbøeite-(La)	CaLa₃(Fe³⁺Al₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.55	Västmanlandite-(Ce)	CaCe₃(MgAl₂Mg)[Si₂O₇][SiO₄]₃F(OH)₂	Mon. 2/m : P2₁/m
9.BG.60	Radekškodaite-(La)	(CaLa₅)(Al₄Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	Mon. 2/m : P2₁/m
9.BG.60	Radekškodaite-(Ce)	(CaCe₅)(Al₄Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	Mon. 2/m : P2₁/m

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References for Dissakisite-(La)Hide

Reference List:

Tumiati, S., Godard, G., Martin, S., Nimis, P. (2005): Dissakisite-(La), a new end-member of the epidote group from the Ulten peridotites (Italian Eastern Alps): Evidence of mantle-crust interactions in subduction zones. Geophysical Research Abstracts, 7, 00616.

Tumiati, S. (2005) Dissakisite-(La) from the Ulten zone peridotite (Italian Eastern Alps): A new end-member of the epidote group. American Mineralogist, 90 (7) 1177-1185 doi:10.2138/am.2005.1710

Lavina, Barbara, Carbonin, Susanna, Russo, Umberto, Tumiati, Simone (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage. American Mineralogist, 91 (1) 104-110 doi:10.2138/am.2006.1721

Tumiati, S., Carbonin, S., Mair, V., & Russo, U. (2006). Dissakisite-(La). Nuova specie dalla Val d'Ultimo, Alto Adige. Rivista Mineralogica Italiana, 30(4), 244-247.

(2021) Dissakisite-(La). Handbook of Mineralogy. Mineralogical Society of America

Localities for Dissakisite-(La)Hide

Showing 3 localities.

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- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

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- 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Italy (TL)
Trentino-Alto Adige/Südtirol South Tyrol Burggrafenamt (Burgraviato) Ulten (Ultimo) ⓘ Hochwart - Vedetta Alta (TL)	Am Min 90:1177-1185

Russia
Chelyabinsk Oblast Kyshtym ⓘ Mochalin Log	Pavel M. Kartashov (n.d.) +2 other references

Slovakia
Bratislava Region Pezinok District Pezinok ⓘ Rybníček	Bacik et al. (2010)

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Dissakisite-(La)

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