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Vyuntspakhkite-(Y)

A valid IMA mineral species

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Photos of Vyuntspakhkite-(Y) (10)

Vyuntspakhkite-(Y) Gallery Search Photos of Vyuntspakhkite-(Y)

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Vyuntspakhkite-(Y)

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y), etc.

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y)

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y)

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y), etc.

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y)

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y)

Stetind pegmatite, Narvik, Nordland, Norway

Vyuntspakhkite-(Y), etc.

Stetind pegmatite, Narvik, Nordland, Norway

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About Vyuntspakhkite-(Y)Hide

Formula:

(Y,Yb)₄Al_2.5-1.5(Si,Al)_1.5-2.5(SiO₄)₄O(OH)₇

Colour:

Colourless to tan

Lustre:

Adamantine

Hardness:

6 - 7

Specific Gravity:

4.02

Crystal System:

Monoclinic

Name:

Named after the highest mountain (Mt. Vyuntspakhk) in the region of the type locality.

Type Locality:

ⓘ Ploskaya Mt, Western Keivy Massif, Keivy Mountains, Lovozersky District, Murmansk Oblast, Russia

A very rare yttrium mineral in pegmatites.

Unique IdentifiersHide

Mindat ID:

4222

Long-form identifier:

mindat:1:1:4222:8

GUID
(UUID V4):

7b91f60c-dde5-4103-b594-dbd784e648fd

IMA Classification of Vyuntspakhkite-(Y)Hide

IMA status:

Approved

IMA Formula:

Y(Al,Si)(SiO₄)(OH,O)₂

Approval year:

1982

First published:

1983

Type description reference:

Voloshin, A. V., Pakhomovsky, Ya. A.,Menshikov,Yu P.,Povarennykh, A.S. and Rogachev, D.L. (1983) Vyuntspakhite Y4Al2AlSi5O18(OH)5 a new yttrium-aluminum silicate from amazonite pegmatites of the Kola Peninsula. Mineralogicheskii Zhurnal (1983): 5(4): 89-94.

Classification of Vyuntspakhkite-(Y)Hide

Strunz-mindat (2024):

9.BG.40

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

Dana 8th ed.:

61.1.18.1

61 : CYCLOSILICATES Six-Membered Rings
1 : Six-Membered Rings with [Si₆O₁₈] rings; possible (OH) and Al substitution

Hey's CIM Ref.:

16.13.1

16 : Silicates Containing Aluminum and other Metals
13 : Aluminosilicates of the rare earths

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
Vyu-Y	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Vyuntspakhkite-(Y)Hide

Lustre:

Adamantine

Transparency:

Transparent

Colour:

Colourless to tan

Hardness:

6 - 7 on Mohs scale

Tenacity:

Brittle

Cleavage:

None Observed

Density:

4.02 g/cm³ (Measured) 4.07 g/cm³ (Calculated)

Optical Data of Vyuntspakhkite-(Y)Hide

Type:

Biaxial (+)

RI values:

n_α = 1.680 n_β = 1.692 n_γ = 1.720

2V:

Measured: 68° , Calculated: 66°

Max Birefringence:

δ = 0.040

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

High

Dispersion:

r < v weak

Chemistry of Vyuntspakhkite-(Y)Hide

Mindat Formula:

(Y,Yb)₄Al_2.5-1.5(Si,Al)_1.5-2.5(SiO₄)₄O(OH)₇

Elements listed:

Al, H, O, Si, Y, Yb - search for minerals with similar chemistry

Crystallography of Vyuntspakhkite-(Y)Hide

Crystal System:

Monoclinic

Cell Parameters:

a = 5.7551(11) Å, b = 14.752(3) Å, c = 15.906(4) Å
β = 96.046(4)°

Ratio:

a:b:c = 0.39 : 1 : 1.078

Unit Cell V:

1,342.90 Å³ (Calculated from Unit Cell)

Morphology:

Microinclusions in yttrofluorite.

Comment:

Space group: P21/n, Cell parameters from Yakbovich & Steele (2009)

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)
0012421	Vyuntspakhkite-(Y)	Yakbovich O V, Steele I M (2009) The crystal structure of vyuntspakhite: a redetermination Crystallography Reports 54 822-830		2009	Kola Peninsula, Russia	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Vyuntspakhkite-(Y)'
loop_
_publ_author_name
'Yakbovich O V'
'Steele I M'
_journal_name_full 'Crystallography Reports'
_journal_volume 54 
_journal_year 2009
_journal_page_first 822
_journal_page_last 830
_publ_section_title
;
 The crystal structure of vyuntspakhite: a redetermination
;
_database_code_amcsd 0012421
_chemical_compound_source 'Kola Peninsula, Russia'
_chemical_formula_sum 'Y2.115 Tm.935 Al2 Si3.882 O18 H5'
_cell_length_a 5.7551
_cell_length_b 14.752
_cell_length_c 15.906
_cell_angle_alpha 90
_cell_angle_beta 96.046
_cell_angle_gamma 90
_cell_volume 1342.896
_exptl_crystal_density_diffrn      3.967
_symmetry_space_group_name_H-M 'P 1 21/n 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-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
Y1   0.15508   0.82411   0.54144   0.73400   0.00450
Tm1Y1   0.15508   0.82411   0.54144   0.26600   0.00450
Y2   0.33423   0.68127   0.36474   0.68800   0.00499
Tm2Y2   0.33423   0.68127   0.36474   0.36200   0.00499
Y3  -0.01803   0.66549   0.70079   0.69300   0.00505
Tm3Y3  -0.01803   0.66549   0.70079   0.30700   0.00505
Al1   0.32640   0.06122   0.45229   1.00000   0.00720
Al2   0.83650   0.56203   0.36481   1.00000   0.00780
Si1   0.48950   0.82291   0.70206   1.00000   0.00740
Si2   0.66120   0.66921   0.52810   1.00000   0.00770
Si3   0.83110   0.84386   0.37568   1.00000   0.00790
Si4   0.46780   0.50542   0.20963   0.88200   0.00620
O1   0.64480   0.59280   0.60440   1.00000   0.00930
O2   0.37220   0.93860   0.46470   1.00000   0.00790
O3   0.05970   0.78270   0.39650   1.00000   0.01060
O4   0.42220   0.72440   0.50830   1.00000   0.01060
O5   0.95040   0.93730   0.62060   1.00000   0.00950
O6   0.25410   0.76490   0.67830   1.00000   0.00870
O7   0.49500   0.89160   0.78310   1.00000   0.00770
O8   0.58860   0.79560   0.34080   1.00000   0.00940
O9   0.68280   0.61940   0.43890   1.00000   0.01040
O10   0.22120   0.73600   0.22960   1.00000   0.00960
O11   0.82320   0.89470   0.46670   1.00000   0.00660
O12   0.49290   0.88520   0.61690   1.00000   0.00670
O13   0.79440   0.54080   0.77770   1.00000   0.01070
O14   0.35600   0.58050   0.79970   1.00000   0.00920
O15   0.16830   0.55920   0.62560   1.00000   0.01150
O16   0.54600   0.56700   0.29150   1.00000   0.00880
O17   0.88320   0.72610   0.56740   1.00000   0.00920
O18   0.13470   0.56850   0.42910   1.00000   0.00980
H1   0.15600   0.56000   0.48000   1.00000   0.02100
H2   0.70800   0.54200   0.59600   1.00000   0.02100
H3   0.89900   0.50400   0.77900   1.00000   0.02100
H4   0.40800   0.91500   0.41700   1.00000   0.02100
H5   0.27000   0.57800   0.64400   1.00000   0.02100

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.47 Å	(10b)
2.604 Å	(8)
7.40 Å	(6)
4.98 Å	(6)
4.92 Å	(6)
2.87 Å	(6)
2.95 Å	(5)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)
Stage 4b: Highly evolved igneous rocks	>3.0
34 : Complex granite pegmatites

Type Occurrence of Vyuntspakhkite-(Y)Hide

Type Locality:

ⓘ Ploskaya Mt, Western Keivy Massif, Keivy Mountains, Lovozersky District, Murmansk Oblast, Russia

General Appearance of Type Material:

0.5- 0.7 mm large , slender, prismatic crystals in small cavities within violet fine grained fluorite.

Place of Conservation of Type Material:

Geology Museum, Kola Branch, Academy of Sciences, Apatity, 5767; Mining Institute, St. Petersburg, 1341/1; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 82544.

Geological Setting of Type Material:

Amazonite pegmatite

Associated Minerals at Type Locality:

Xenotime

Fluorite

Bastnäsite

Reference:

Synonyms of Vyuntspakhkite-(Y)Hide

IMA1982-040

Other Language Names for Vyuntspakhkite-(Y)Hide

German:Vyuntspakhkit-(Y)

Russian:Вюнцпахкит-(Y)

Common AssociatesHide

Associated Minerals Based on Photo Data:

5 photos of Vyuntspakhkite-(Y) associated with Yttrofluorite	(Ca_1-xY_x)F_2+x where 0.05< x
4 photos of Vyuntspakhkite-(Y) associated with Stetindite-(Ce)	Ce(SiO₄)
3 photos of Vyuntspakhkite-(Y) associated with Keiviite-(Y)	Y₂Si₂O₇
2 photos of Vyuntspakhkite-(Y) associated with Bastnäsite-(Ce)	Ce(CO₃)F
2 photos of Vyuntspakhkite-(Y) associated with Schlüterite-(Y)	(Y,REE)₂AlSi₂O₇(OH)₂F
1 photo of Vyuntspakhkite-(Y) associated with Lusernaite-(Y)	Y₄Al(CO₃)₂(OH)₁₀F · 6H₂O
1 photo of Vyuntspakhkite-(Y) associated with Pyrite	FeS₂
1 photo of Vyuntspakhkite-(Y) associated with Thalénite-(Y)	Y₃Si₃O₁₀F
1 photo of Vyuntspakhkite-(Y) associated with Fluorite	CaF₂

Related Minerals - Strunz-mindat Grouping Hide

9.BG.	Shuiskite-(Cr)	Ca₂Cr³⁺Cr³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.	Alnaperbøeite-(Ce)	Ca(Ce_2.5Na_0.5)(AlAl₂Al)[Si₂O₇][SiO₄]₃O(OH)₂	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.	Alumovesuvianite	Ca₁₉AlAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.	Zoisite-(Pb)	(CaPb)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Orth. mmm (2/m 2/m 2/m) : Pnma
9.BG.	Vielleaureite-(Ce)	(Mn²⁺Ce)(MgAlMn²⁺)F[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.	Heflikite	(CaCa)(AlAlSc)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.	Zilbermintsite-(La)	(CaLa₅)(Fe³⁺Al₃Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	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.
9.BG.05a	Clinozoisite	(CaCa)(AlAlAl)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.05	Dollaseite-(Ce)	(CaCe)(MgAlMg)F[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.05a	Hancockite	(CaPb)(AlAlFe³⁺)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.05a	Mukhinite	(CaCa)(AlAlV³⁺)O[Si₂O₇][SiO₄](OH)	Mon.
9.BG.05a	Piemontite	(CaCa)(AlAlMn³⁺)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.05b	Manganiandrosite-(La)	(Mn²⁺La)(Mn³⁺AlMn²⁺)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	Ferriallanite-(Ce)	(CaCe)(Fe³⁺AlFe²⁺)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.05	Manganiandrosite-(Ce)	(Mn²⁺Ce)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Dissakisite-(La)	(CaLa)(AlAlMg)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.05	Uedaite-(Ce)	(Mn²⁺Ce)(AlAlFe²⁺)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.05b	Allanite-(Nd)	(CaNd)(AlAlFe²⁺)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	Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))	(CaCe)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05b	Ferriallanite-(La)	(CaLa)(Fe³⁺AlFe²⁺)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	Vanadoallanite-(La)	(CaLa)(V³⁺AlFe²⁺)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.05a v	Unnamed (Ga-analogue of Epidote)	(CaCa)(AlAlGa³⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05b	UM1989-32-SiO:AlCaFeHREE	(Ca_0.5◻_0.5REE)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05b	Manganiakasakaite-(La)	(CaLa)(Mn³⁺AlMn²⁺)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.9.BG.	Ferriakasakaite-(La)	(CaLa)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.9.BG.	Ferriandrosite-(Ce)	(Mn²⁺Ce)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.9.BG	Ferriperbøeite-(Ce)	CaCe₃(Fe³⁺Al₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.10	Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Orth. mmm (2/m 2/m 2/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	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	Pumpellyite-(Fe2+)	Ca₂Fe²⁺Al₂(Si₂O₇)(SiO₄)(OH,O)₂ · H₂O	Mon. 2/m
9.BG.20	Pumpellyite-(Fe3+)	Ca₂Fe³⁺Al₂(Si₂O₇)(SiO₄)(OH,O)₂ · H₂O	Mon. 2/m
9.BG.20	Pumpellyite-(Mg)	Ca₂MgAl₂(Si₂O₇)(SiO₄)(OH)₂ · H₂O	Mon. 2/m
9.BG.20	Pumpellyite-(Mn2+)	Ca₂Mn²⁺Al₂(Si₂O₇)(SiO₄)(OH)₂ · H₂O	Mon. 2/m
9.BG.20	Shuiskite-(Mg)	Ca₂MgCr³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Julgoldite-(Fe3+)	Ca₂Fe³⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
9.BG.20	Pumpellyite-(Al)	Ca₂Al₃(Si₂O₇)(SiO₄)(OH,O)₂ · H₂O	Mon. 2/m
9.BG.20	Poppiite	Ca₂V³⁺V³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.20	Julgoldite-(Mg)	Ca₂MgFe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
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	Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/mmm (4/m 2/m 2/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/m 2/m 2/m) : P4/nnc
9.BG.35	Manganvesuvianite	Ca₁₉Mn³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.35	Fluorvesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(F,OH)₉	Tet. 4/mmm (4/m 2/m 2/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	Hongheite	Ca₁₉Fe²⁺Al₄(Fe³⁺,Mg)₈(◻₄)B[Si₂O₇]₄[(SiO₄)₁₀]O(OH,O)₉	Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
9.BG.35	Milanriederite	(Ca₁₈[REE])Fe³⁺Al₄(Mg₄Al₄)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/mmm (4/m 2/m 2/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/m 2/m 2/m) : P4/nnc
9.BG.45	Dellaite	Ca₆Si₃O₁₁(OH)₂	Tric.
9.BG.50	Gatelite-(Ce)	CaCe₃(AlAl₂Mg)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/b
9.BG.50	Perbøeite-(Ce)	CaCe₃(AlAl₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Ferriperbøeite-(La)	CaLa₃(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.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 Vyuntspakhkite-(Y)Hide

Reference List:

Voloshin, A.V., Pakhomovsky, Ya.A., Menshikov, Yu P., Povarennykh, A.S. and Rogachev, D.L. (1983) Vyuntspakhite Y4Al2AlSi5O18(OH)5 a new yttrium-aluminum silicate from amazonite pegmatites of the Kola Peninsula. Mineralogicheskii Zhurnal: 5(4): 89-94.

Dunn, P.J., Cabri, L.J, Ferraiolo, J.A., Grice, J.D., Jambor, J.L., Mueller, W., Shigley, J.E., Puziewicz, J., Vanko, D.A. (1984) New mineral names. American Mineralogist: 69: 1190-1196.

Voloshin, A.V., Pakhomovskii, Ya.A. (1986) Minerals and mineral formation evolution in amazonite pegmatites of Kola peninsula. Leningrad, Nauka: pp. 168. (in Russian)

Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.

Yakbovich, O.V., and Steele, I.M. (2009) The crystal structure of vyuntspakhite: a redetermination. Crystallography Reports: 54: 822-830.

(2023) Vyuntspakhkite-(Y) Handbook of Mineralogy. Mineralogical Society of America

Localities for Vyuntspakhkite-(Y)Hide

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Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

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


Norway
Nordland Hamarøy Drag Lapplægeret ⓘ Øvre Lapplægeret Quarry	Husdal (2008)
Narvik ⓘ Stetind pegmatite	Husdal (2008)

Russia (TL)
Murmansk Oblast Lovozersky District Keivy Mountains Western Keivy Massif ⓘ Ploskaya Mt (TL)	Voloshin A.V. et al. (1983) +2 other references

Sweden
Dalarna County Falun ⓘ Finnbo (Finbo)

Vyuntspakhkite-(Y)

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