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Murmanite

A valid IMA mineral species - grandfathered

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Photos of Murmanite (61)Discuss Murmanite

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Murmanite, etc.

Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Murmanite

Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Murmanite

Lovozero Massif, Murmansk Oblast, Russia

Murmanite, etc.

Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Murmanite

Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Murmanite

Lovozero Massif, Murmansk Oblast, Russia

Murmanite, etc.

Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Murmanite

Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia

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About MurmaniteHide

Formula:

Na₂Ti₂(Si₂O₇)O₂ · 2H₂O

Often contains minor Nb and Mn.

Colour:

Lilac to pink, alters to silvery white-yellow, brown to black.

Lustre:

Greasy, Pearly

Hardness:

2½ - 3

Specific Gravity:

2.76 - 2.84

Crystal System:

Triclinic

Member of:

Murmanite Group > Seidozerite Supergroup

Name:

Named by N. Gutkova in 1930 for the Murman coast on the northern side of the Kola Peninsula, Russia.

Co-Type Localities:

ⓘ Chinglusuai River Valley, Lovozersky District, Murmansk Oblast, Russia
ⓘ Raslak Cirques, Lovozersky District, Murmansk Oblast, Russia

This page provides mineralogical data about Murmanite.

Unique IdentifiersHide

Mindat ID:

2813

Long-form identifier:

mindat:1:1:2813:0

IMA Classification of MurmaniteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA Formula:

Na₂Ti⁴⁺₂Na₂Ti⁴⁺₂(Si₂O₇)₂O₄(H₂O)₄

First published:

1930

Type description reference:

Gutkova, N. (1930) Sur un nouveau titano-silicate - la mourmanite de Lujawrurt. Doklady Akademii Nauk SSSR, seriya A: 27: 731-736.

Classification of MurmaniteHide

Strunz-mindat (2026):

9.BE.27

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si₂O₇ groups, with additional anions; cations in octahedral [6] and greater coordination

Dana 8th ed.:

56.2.7.2

56 : SOROSILICATES Si₂O₇ Groups, With Additional O, OH, F and H₂O
2 : Si₂O₇ Groups and O, OH, F, and H₂O with cations in [4] and/or >[4] coordination

Hey's CIM Ref.:

17.8.2

17 : Silicates Containing other Anions
8 : Silicates with niobate or tantalate

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
Mmn	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 MurmaniteHide

Lustre:

Greasy, Pearly

Transparency:

Translucent, Opaque

Comment:

Vitreous on cleavages, greasy on fractures

Colour:

Lilac to pink, alters to silvery white-yellow, brown to black.

Comment:

cinnamon-brown to black when altered

Streak:

Pink to red or brown

Hardness:

2½ - 3 on Mohs scale

Tenacity:

Brittle

Cleavage:

Perfect
{001}

Density:

2.76 - 2.84 g/cm³ (Measured) 3.00 g/cm³ (Calculated)

Optical Data of MurmaniteHide

Type:

Biaxial (-)

RI values:

n_α = 1.682 - 1.735 n_β = 1.765 - 1.770 n_γ = 1.807 - 1.839

2V:

Measured: 57° to 64°, Calculated: 66° to 74°

Max. Birefringence:

δ = 0.104 - 0.125
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized biaxial acute bisectrix (Bxa) interference figure - the conoscopic view for a grain cut perpendicular to the acute bisectrix, using this mineral's 2V. The two small white dots mark the melatopes - the points where the two optic axes emerge - and are shown only when they fall within the field of view. The coloured bands are isochromatics, and the dark bands are isogyres.

Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.

Thickness: 30 µm

Stage rotation: 0°

Dispersion:

r > v weak

Pleochroism:

Visible

Comments:

X = light pink; Y = light brown; Z = pinkish brown to dark brown.
Orientation X normal to (100).

Chemistry of MurmaniteHide

Mindat Formula:

Na₂Ti₂(Si₂O₇)O₂ · 2H₂O

Often contains minor Nb and Mn.

Element Weights:

Element	% weight
O	46.570 %
Ti	25.333 %
Si	14.864 %
Na	12.167 %
H	1.067 %

Calculated from ideal end-member formula.

Elements listed:

H, Na, O, Si, Ti - search for minerals with similar chemistry

Common Impurities:

Zr,Fe,Ta,Mn,Mg,Ca,K,P

Crystallography of MurmaniteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pedial

Space Group:

Cell Parameters:

a = 10.535(5) Å, b = 13.884(4) Å, c = 11.688(14) Å
α = 94.31(6)°, β = 98.62(8)°, γ = 89.81(3)°

Ratio:

a:b:c = 0.759 : 1 : 0.842

Unit Cell V:

1,685.43 Å³ (Calculated from Unit Cell)

Morphology:

well-formed crystals, to 2 cm. As flaky and lamellar segregations and radial and fine-grained aggregations

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

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CIF File Best | x | y | z | a | b | c

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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	Locality	Temp (K)
0018519	Murmanite	Camara F, Sokolova E, Hawthorne F C, Abdu Y (2008) From structure topology to chemical composition. IX. Titanium silicates: revision of the crystal chemistry of lomonosovite and murmanite, Group-IV minerals Mineralogical Magazine 72 1207-1228	2008	Yubileynaya pegmatite vein, Karnasut Mountain, Lovozero alkaline massif	293
0018521	Murmanite	Khalilov A D (1989) Refinement of the crystal structure of murmanite and new data on its crystal-chemical characteristics Mineralogiceskij Zhurnal 11 19-27	1989		293
0015586	Murmanite	Rastsvetaeva R K, Andrianov V I (1986) New data on the crystal structure of murmanite Soviet Physics Crystallography 31 44-48	1986		293
0012444	Murmanite	Khalilov A D, Mamedov K S, Makarov E S, Pyanzina L A (1965) Crystal structure of murmanite Doklady Akademii Nauk SSSR 161 1409-1411	1965		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Murmanite'
loop_
_publ_author_name
'Camara F'
'Sokolova E'
'Hawthorne F C'
'Abdu Y'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 72 
_journal_year 2008
_journal_page_first 1207
_journal_page_last 1228
_publ_section_title
;
 From structure topology to chemical composition. IX. Titanium silicates: revision of
 the crystal chemistry of lomonosovite and murmanite, Group-IV minerals
;
_database_code_amcsd 0018519
_chemical_compound_source 'Yubileynaya pegmatite vein, Karnasut Mountain, Lovozero alkaline massif'
_chemical_formula_sum 'Na1.645 Ca.105 K.025 Mn.165 Ti1.605 Nb.255 Fe.075 Mg.035 Zr.005 Si2 O11 H4'
_cell_length_a 5.3875
_cell_length_b 7.0579
_cell_length_c 12.176
_cell_angle_alpha 93.511
_cell_angle_beta 107.943
_cell_angle_gamma 90.093
_cell_volume 439.538
_exptl_crystal_density_diffrn      2.979
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,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
Na(1)   0.38430   0.82780   0.19944   0.89000   0.02550
Ca(1)   0.38430   0.82780   0.19944   0.07500   0.02550
K(1)   0.38430   0.82780   0.19944   0.02500   0.02550
Na(2)   0.73740   0.61170   0.49032   0.75500   0.02770
Mn(2)   0.73740   0.61170   0.49032   0.07000   0.02770
Ca(2)   0.73740   0.61170   0.49032   0.03000   0.02770
Ti(1)   0.41614   0.32516   0.24050   0.83500   0.01360
Nb(1)   0.41614   0.32516   0.24050   0.11000   0.01360
Fe3+(1)   0.41614   0.32516   0.24050   0.05500   0.01360
Ti(2)   0.27783   0.88695   0.50472   0.70000   0.01970
Nb(2)   0.27783   0.88695   0.50472   0.14500   0.01970
Mn(2)   0.27783   0.88695   0.50472   0.09500   0.01970
Mg(2)   0.27783   0.88695   0.50472   0.03500   0.01970
Fe3+(2)   0.27783   0.88695   0.50472   0.02000   0.01970
Zr(2)   0.27783   0.88695   0.50472   0.00500   0.01970
Si(1)   0.92177   0.05009   0.25961   1.00000   0.01380
Si(2)   0.94748   0.62237   0.27519   1.00000   0.01520
O(1)   0.13670   0.13650   0.21050   1.00000   0.03820
O(2)   0.63680   0.13090   0.20230   1.00000   0.03770
O(3)   0.00140   0.93270   0.59870   1.00000   0.01710
O(4)   0.89930   0.82480   0.21630   1.00000   0.02640
O(5)   0.67010   0.51780   0.23950   1.00000   0.04110
O(6)   0.06150   0.66590   0.41450   1.00000   0.02120
O(7)   0.16330   0.52000   0.22940   1.00000   0.03950
O(8)   0.53060   0.30050   0.39400   1.00000   0.02040
O(9)   0.50330   0.89390   0.41310   1.00000   0.01780
Ow(10)   0.28150   0.33730   0.04360   1.00000   0.03750
Ow(11)   0.25280   0.72550   0.00600   1.00000   0.03590
H(1)   0.30500   0.27700  -0.02000   1.00000   0.04504
H(2)   0.15200   0.42300   0.02600   1.00000   0.04504
H(3)   0.24400   0.59880  -0.01300   1.00000   0.04305
H(4)   0.29000   0.79000  -0.04700   1.00000   0.04305
Ti(1A)   0.38900   0.32510   0.20360   0.02000   0.01360
Ti(1B)   0.45500   0.32500   0.29400   0.05000   0.01360
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
Na(1) 0.02310 0.02260 0.03160 0.00110 0.00950 0.00100
Ca(1) 0.02310 0.02260 0.03160 0.00110 0.00950 0.00100
K(1) 0.02310 0.02260 0.03160 0.00110 0.00950 0.00100
Na(2) 0.02450 0.02110 0.04530 0.00800 0.02050 0.01080
Mn(2) 0.02450 0.02110 0.04530 0.00800 0.02050 0.01080
Ca(2) 0.02450 0.02110 0.04530 0.00800 0.02050 0.01080
Ti(1) 0.00950 0.01400 0.01820 0.00070 0.00520 0.00270
Nb(1) 0.00950 0.01400 0.01820 0.00070 0.00520 0.00270
Fe3+(1) 0.00950 0.01400 0.01820 0.00070 0.00520 0.00270
Ti(2) 0.01890 0.01570 0.02520 0.00195 0.00730 0.00300
Nb(2) 0.01890 0.01570 0.02520 0.00195 0.00730 0.00300
Mn(2) 0.01890 0.01570 0.02520 0.00195 0.00730 0.00300
Mg(2) 0.01890 0.01570 0.02520 0.00195 0.00730 0.00300
Fe3+(2) 0.01890 0.01570 0.02520 0.00195 0.00730 0.00300
Zr(2) 0.01890 0.01570 0.02520 0.00195 0.00730 0.00300
Si(1) 0.01150 0.01080 0.01990 0.00000 0.00550 0.00250
Si(2) 0.01350 0.01060 0.02220 0.00080 0.00620 0.00280
O(1) 0.04210 0.05000 0.02490 -0.03150 0.01500 -0.00310
O(2) 0.03010 0.04900 0.02670 0.02740 -0.00120 -0.00430
O(3) 0.01440 0.01720 0.02140 0.00100 0.00750 0.00250
O(4) 0.03970 0.01190 0.02600 0.00150 0.00770 0.00080
O(5) 0.03860 0.04800 0.03670 -0.03310 0.01320 -0.00060
O(6) 0.02080 0.01810 0.02420 0.00230 0.00610 0.00270
O(7) 0.03540 0.04400 0.03650 0.02780 0.00780 -0.00350
O(8) 0.01630 0.02250 0.02280 -0.00030 0.00600 0.00410
O(9) 0.01520 0.01610 0.02260 0.00070 0.00610 0.00230
Ow(10) 0.04900 0.03240 0.03020 0.00690 0.00960 0.00580
Ow(11) 0.03650 0.03800 0.03430 0.00120 0.01150 0.00870
Ti(1A) 0.00900 0.01400 0.01820 0.00070 0.00520 0.00270
Ti(1B) 0.00900 0.01400 0.01820 0.00070 0.00520 0.00270

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
11.56 Å	(90)
5.810 Å	(90)
4.220 Å	(100)
3.762 Å	(60)
2.867 Å	(100)
2.640 Å	(40)
2.485 Å	(40)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]

Type Occurrence of MurmaniteHide

Co-Type Localities:

ⓘ Chinglusuai River Valley, Lovozersky District, Murmansk Oblast, Russia
ⓘ Raslak Cirques, Lovozersky District, Murmansk Oblast, Russia

Place of Conservation of Type Material:

A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 25852-25854, 25862, 25863.

Geological Setting of Type Material:

Alkaline complex

Reference:

Gutkova, N. (1930) Sur un nouveau titano-silicate - la mourmanite de Lujawrurt. Doklady Akademii Nauk SSSR, seriya A: 27: 731-736.

Synonyms of MurmaniteHide

Mourmanite

Other Language Names for MurmaniteHide

Dutch:Murmaniet

German:Murmanit
Mourmanit

Russian:Мурманит

Simplified Chinese:水硅钛钠石

Spanish:Mourmanita
Murmanita

Traditional Chinese:水矽鈦鈉石

Relationship of Murmanite to other SpeciesHide

Member of:

Murmanite Group > Seidozerite Supergroup

Other Members of Murmanite Group:

Calciomurmanite	(Na,◻)₂Ca(Ti,Mg,Nb)₄[Si₂O₇]₂O₂(OH,O)₂(H₂O)₄	Tric. 1 : P1
Kolskyite	CaNa₂Ti₄(Si₂O₇)₂O₄(H₂O)₇	Tric. 1 : P1
Lomonosovite	Na₅Ti₂(Si₂O₇)(PO₄)O₂	Tric. 1 : P1
Paralomonosovite	Na₆◻₄Ti₄(Si₂O₇)₂[PO₃OH][PO₂(OH)₂]O₂(OF)	Tric. 1 : P1
Quadruphite	Na₆Na₂(CaNa)₂Na₂Ti₂Na₂Ti₂(Si₂O₇)₂(PO₄)₄O₄F₂	Tric. 1 : P1
Schüllerite	Ba₂Na(Mn,Ca)(Fe³⁺,Mg,Fe²⁺)₂Ti₂(Si₂O₇)₂(O,F)₄	Tric. 1 : P1
Selivanovaite	NaFe³⁺Ti₄(Si₂O₇)₂O₄(H₂O)₄	Tric. 1 : P1
Sobolevite	Na₁₃Ca₂Mn₂Ti₃(Si₂O₇)₂(PO₄)₄O₃F₃	Mon. m : Pb
Vigrishinite	NaZnTi₄(Si₂O₇)₂O₃(OH)(H₂O)₄	Tric. 1 : P1

Common AssociatesHide

Associations Based on Photo Data:

12 photos of Murmanite associated with Aegirine	NaFe³⁺Si₂O₆
4 photos of Murmanite associated with Ussingite	Na₂AlSi₃O₈OH
3 photos of Murmanite associated with Lorenzenite	Na₂Ti₂(Si₂O₆)O₃
2 photos of Murmanite associated with Sodalite	Na₄(Si₃Al₃)O₁₂Cl
2 photos of Murmanite associated with Opal	SiO₂ · nH₂O
2 photos of Murmanite associated with 'Lujavrite'
1 photo of Murmanite associated with Manganoneptunite	KNa₂Li(Mn²⁺)₂Ti₂[Si₄O₁₂]₂
1 photo of Murmanite associated with Lamprophyllite	(Na,Mn²⁺)₃(Sr,Na)₂(Ti,Fe³⁺)₃(Si₂O₇)₂O₂(OH,O,F)₂
1 photo of Murmanite associated with Zorite	Na₈(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅ · 14H₂O
1 photo of Murmanite associated with Selsurtite	(H₃O)₁₂Na₃(Ca₃Mn₃)(Na₂Fe)Zr₃◻{Si(Si₃O₉)₂(Si₉O₂₇)Si₉O₂₄(OH)₃}(OH)Cl(H₂O)

Related Minerals - Strunz-mindat Grouping Hide

9.BE.	Zinkgruvanite	Ba₄Mn²⁺₄Fe³⁺₂(Si₂O₇)₂(SO₄)₂O₂(OH)₂	Tric. 1 : P1
9.BE.	Calciomurmanite	(Na,◻)₂Ca(Ti,Mg,Nb)₄[Si₂O₇]₂O₂(OH,O)₂(H₂O)₄	Tric. 1 : P1
9.BE.	Cámaraite	Ba₃Na(Fe²⁺,Mn)₈Ti₄(Si₂O₇)₄O₄(OH,F)₇	Tric. 1
9.BE.	Alfredcasparite	Sr₂TiO(Si₂O₇)	Tet. 4mm : P4bm
9.BE.	Batievaite-(Y)	Y₂Ca₂Ti(Si₂O₇)₂(OH)₂(H₂O)₄	Tric. 1 : P1
9.BE.	Nacareniobsite-(Y)	Na₃Ca₃YNb(Si₂O₇)₂OF₃	Mon. 2/m : P2₁/b
9.BE.	Alexkuznetsovite-(Ce)	Ce₂Mn(CO₃)(Si₂O₇)	Mon. 2/m : P2₁/b
9.BE.	Bobshannonite	Na₂KBa(Mn,Na)₈(Nb,Ti)₄(Si₂O₇)₄O₄(OH)₄(O,F)₂	Tric.
9.BE.	Paralomonosovite	Na₆◻₄Ti₄(Si₂O₇)₂[PO₃OH][PO₂(OH)₂]O₂(OF)	Tric. 1 : P1
9.BE.	Madeiraite	Na₂Ca₂Fe₂Zr₂(Si₂O₇)₂O₂F₂	Mon. 2/m : P2₁/b
9.BE.	Bortolanite	Ca₂(Ca_1.5Zr_0.5)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂	Tric. 1 : P1
9.BE.	Longshoushanite-(Ce)	Ce₄MgAl₂Ti₂(Si₂O₇)₂O₈	Mon. 2/m : P2₁/b
9.BE.	Moxuanxueite	NaCa₆Zr(Si₂O₇)₂OF₃	Tric. 1 : P1
9.BE.	Delhuyarite-(Ce)	Ce₄Mg(Fe³⁺,W)₃◻(Si₂O₇)₂O₆(OH)₂	Mon. 2/m : B2/m
9.BE.	Christofschäferite-(Ce)	Ce₃CaMnTiFe³⁺Ti₂(Si₂O₇)₂O₈	Mon. 2/m : P2₁/m
9.BE.X	Asimowite	Fe²⁺₄O(Si₂O₇)	Orth. mmm(2/m2/m2/m) : Imma
9.BE.	Biraite-(La)	La₂Fe²⁺(CO₃)(Si₂O₇)	Mon. 2/m : P2₁/b
9.BE.	Pilanesbergite	Na₂Ca₂Fe₂Ti₂(Si₂O₇)₂O₂F₂	Mon. 2/m : P2₁/b
9.BE.02	Wadsleyite	Mg₄O(Si₂O₇)	Orth. mmm(2/m2/m2/m) : Imma
9.BE.02	Ohtaniite	Mg₃(Si_0.5◻_0.5)Si₂O₈	Orth. mmm(2/m2/m2/m) : Imma
9.BE.05	Lawsonite	CaAl₂(Si₂O₇)(OH)₂ · H₂O	Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.05	Hennomartinite	SrMn³⁺₂(Si₂O₇)(OH)₂ · H₂O	Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.05	Cortesognoite	CaV₂(Si₂O₇)(OH)₂ · H₂O	Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.05	Noelbensonite	BaMn³⁺₂(Si₂O₇)(OH)₂ · H₂O	Orth. mm2
9.BE.05	Itoigawaite	SrAl₂(Si₂O₇)(OH)₂ · H₂O	Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.07	Ilvaite	CaFe³⁺Fe²⁺₂(Si₂O₇)O(OH)	Orth. mmm(2/m2/m2/m)
9.BE.07	Amamoorite	CaMn²⁺₂Mn³⁺(Si₂O₇)O(OH)	Mon. 2/m : P2₁/b
9.BE.07	Manganilvaite	CaFe²⁺Fe³⁺Mn²⁺(Si₂O₇)O(OH)	Mon. 2/m : P2₁/b
9.BE.10	Suolunite	Ca₂(H₂Si₂O₇) · H₂O	Orth. mm2 : Fdd2
9.BE.12	Jaffeite	Ca₆(Si₂O₇)(OH)₆	Trig. 3 : P3
9.BE.15	Fresnoite	Ba₂Ti(Si₂O₇)O	Tet. 4mm : P4bm
9.BE.17	Janhaugite	(Na,Ca)₃(Mn²⁺,Fe²⁺)₃(Ti,Zr,Nb)₂(Si₂O₇)₂O₂(OH,F)₂	Mon. 2/m : P2₁/m
9.BE.17	Burpalite	Na₂CaZr(Si₂O₇)F₂	Mon. 2/m : P2₁/b
9.BE.17	Niocalite	(Ca,Nb)₄(Si₂O₇)(O,OH,F)₂	Mon. m
9.BE.17	Normandite	NaCa(Mn,Fe)(Ti,Nb,Zr)(Si₂O₇)OF	Mon. 2/m : P2₁/b
9.BE.17	Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃	Tric. 1 : P1
9.BE.17	Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂	Mon. 2/m : P2₁/b
9.BE.17	Cuspidine	Ca₈(Si₂O₇)₂F₄	Mon. 2/m : P2₁/b
9.BE.17	Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F	Mon. 2 : P2₁
9.BE.17	Baghdadite	Ca₆Zr₂(Si₂O₇)₂O₄	Mon. 2/m : P2₁/b
9.BE.20	Nacareniobsite-(Ce)	Na₃Ca₃(Ce,REE)Nb(Si₂O₇)₂OF₃	Mon. 2/m : P2₁/b
9.BE.20	Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃	Mon. m : Bb
9.BE.20	Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂	Mon. 2/m : P2₁/b
9.BE.20	Nacareniobsite-(Nd)	Ca₂(CaNd)Na₃Nb(Si₂O₇)₂(OF)F₂	Mon. 2/m : P2₁/b
9.BE.20	Rinkite-(Y)	Na₂Ca₄YTi(Si₂O₇)₂OF₃	Mon. 2/m : P2₁/b
9.BE.20	Mosandrite-(Ce)	(Ca₃REE)[(H₂O)₂Ca_0.5◻_0.5]Ti(Si₂O₇)₂(OH)₂(H₂O)₂	Mon. 2/m : P2₁/b
9.BE.22	Hainite-(Y)	Na₂Ca₄(Y,REE)Ti(Si₂O₇)₂OF₃	Tric. 1 : P1
9.BE.22	Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆	Tric. 1 : P1
9.BE.22	Götzenite	NaCa₆Ti(Si₂O₇)₂OF₃	Tric. 1 : P1
9.BE.22	Fogoite-(Y)	Na₃Ca₂Y₂Ti(Si₂O₇)₂OF₃	Tric. 1 : P1
9.BE.22	Kochite	Na₃Ca₂MnZrTi(Si₂O₇)₂OF₃	Tric. 1 : P1
9.BE.23	Dovyrenite	Ca₆Zr(Si₂O₇)₂(OH)₄	Orth. mmm(2/m2/m2/m) : Pnnm
9.BE.25	Lamprophyllite	(Na,Mn²⁺)₃(Sr,Na)₂(Ti,Fe³⁺)₃(Si₂O₇)₂O₂(OH,O,F)₂	Mon. 2/m
9.BE.25	Seidozerite	Na₄MnZr₂Ti(Si₂O₇)₂O₂F₂	Mon. 2/m : P2/b
9.BE.25	Nabalamprophyllite	(BaNa)Ti₂Na₃Ti(Si₂O₇)₂O₂(OH)₂	Mon. 2/m : P2/m
9.BE.25	Schüllerite	Ba₂Na(Mn,Ca)(Fe³⁺,Mg,Fe²⁺)₂Ti₂(Si₂O₇)₂(O,F)₄	Tric. 1 : P1
9.BE.25	Ericssonite	BaMn²⁺₂Fe³⁺(Si₂O₇)O(OH)	Mon. 2/m : B2/m
9.BE.25	Grenmarite	Na₄MnZr₃(Si₂O₇)₂O₂F₂	Mon. 2/m : P2/b
9.BE.25	Kazanskyite	BaNa₃Ti₂Nb(Si₂O₇)₂O₂(OH)₂(H₂O)₄	Tric. 1 : P1
9.BE.25	Saamite	Ba◻Na₃Ti₂Nb(Si₂O₇)₂O₂(OH)F(H₂O)₂	Tric. 1 : P1
9.BE.25	Emmerichite	Ba₂Na(Na,Fe²⁺)₂(Fe³⁺,Mg)Ti₂(Si₂O₇)₂O₂F₂	Mon. 2/m : B2/m
9.BE.25	Barytolamprophyllite	(Ba,Na)₂(Na,Ti,Fe³⁺)₄Ti₂(Si₂O₇)₂O(OH,F)	Mon.
9.BE.25	'Ericssonite-2O'	BaMn²⁺₂Fe³⁺(Si₂O₇)O(OH)	Orth.
9.BE.25	Fluorbarytolamprophyllite	(Ba,Sr)₂[(Na,Fe²⁺)₃(Ti,Mg)F₂][Ti₂(Si₂O₇)₂O₂]	Mon. 2/m : B2/m
9.BE.25	Fluorlamprophyllite	Na₃(SrNa)Ti₃(Si₂O₇)₂O₂F₂	Mon. 2/m : B2/m
9.BE.25	Lileyite	Ba₂(Na,Fe,Ca)₃MgTi₂(Si₂O₇)₂O₂F₂	Mon. 2/m : B2/m
9.BE.27	Kolskyite	CaNa₂Ti₄(Si₂O₇)₂O₄(H₂O)₇	Tric. 1 : P1
9.BE.27	Vigrishinite	NaZnTi₄(Si₂O₇)₂O₃(OH)(H₂O)₄	Tric. 1 : P1
9.BE.27	Selivanovaite	NaFe³⁺Ti₄(Si₂O₇)₂O₄(H₂O)₄	Tric. 1 : P1
9.BE.30	Epistolite	(Na◻)Nb₂Na₃Ti(Si₂O₇)₂O₂(OH)₂(H₂O)₄	Tric. 1 : P1
9.BE.32	Lomonosovite	Na₅Ti₂(Si₂O₇)(PO₄)O₂	Tric. 1 : P1
9.BE.35	Vuonnemite	Na₁₁Ti⁴⁺Nb₂(Si₂O₇)₂(PO₄)₂O₃(F,OH)	Tric.
9.BE.37	Sobolevite	Na₁₃Ca₂Mn₂Ti₃(Si₂O₇)₂(PO₄)₄O₃F₃	Mon. m : Pb
9.BE.40	Ferroinnelite	Ba₄Ti₂Na(NaFe²⁺)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)]	Tric. 1 : P1
9.BE.40	Phosphoinnelite	Na₃Ba₄Ti₃(Si₂O₇)₂(PO₄,SO₄)₂O₂F	Tric.
9.BE.40	Innelite	Ba₄Ti₂Na(NaMn²⁺)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)]	Tric. 1 : P1
9.BE.42	Yoshimuraite	Ba₂Mn₂Ti(Si₂O₇)(PO₄)O(OH)	Tric. 1 : P1
9.BE.42	Horiite	Ba₂Mn₂Mn₄Ti₂(Si₂O₇)₂(PO₄)₂O₂(OH)₂	Tric. 1 : P1
9.BE.45	Quadruphite	Na₆Na₂(CaNa)₂Na₂Ti₂Na₂Ti₂(Si₂O₇)₂(PO₄)₄O₄F₂	Tric. 1 : P1
9.BE.47	Polyphite	Na₅(Na₄Ca₂)Ti₂(Si₂O₇)(PO₄)₃O₂F₂	Tric. 1 : P1
9.BE.50	Shkatulkalite	Na₂Nb₂Na₃Ti(Si₂O₇)₂O₂(FO)(H₂O)₄(H₂O)₃	Tric. 1 : P1
9.BE.50	Bornemanite	Na₆BaTi₂Nb(Si₂O₇)₂(PO₄)O₂(OH)F	Tric. 1 : P1
9.BE.55	Hejtmanite	Ba₂Mn²⁺₄Ti₂(Si₂O₇)₂O₂(OH)₂F₂	Tric. 1
9.BE.55	Bykovaite	(Ba,Na,K)₂(Na,Ti,Mn)₄(Ti,Nb)₂(Si₂O₇)₂O₂(H₂O,F,OH)₂ · 3.5H₂O	Mon. 2/m
9.BE.55	Nechelyustovite	(Ba,Sr,K)₂(Na,Ti,Mn)₄(Ti,Nb)₂(Si₂O₇)₂O₂(O,H₂O,F)₂ · 4.5H₂O	Mon. 2/m : B2/m
9.BE.55	Bafertisite	Ba₂Fe²⁺₄Ti₂(Si₂O₇)₂O₂(OH)₂F₂	Tric.
9.BE.60	Delindeite	(Na,K)₂(Ba,Ca)₂(Ti,Fe,Al)₃(Si₂O₇)₂O₂(OH)₂ · 2H₂O	Mon. 2/m : B2/m
9.BE.62	'Orthochevkinite'	(Ce,La,Ca,Na,Th)₄(Fe²⁺,Mg)₂(Ti,Fe³⁺)₃Si₄O₂₂	Orth.
9.BE.62 va	'Strontium Perrierite'	(Ce,Sr,La,Ca)₄Fe²⁺(Ti,Zr,Fe)₂Ti₂(Si₂O₇)₂O₈
9.BE.62	'Chevkinite-(Nd)'	(Nd,REE)₄(Fe²⁺,Mg)(Fe²⁺,Ti,Fe³⁺)₂(Ti,Fe³⁺)₂(Si₂O₇)₂O₈ ?
9.BE.62	'Perrierite-(Nd)'	Nd₄MgFe³⁺₂Ti₂(Si₂O₇)₂O₈ ?
9.BE.65	Bussenite	Na₂Ba₂Fe²⁺Ti(Si₂O₇)(CO₃)(OH)₃F	Tric. 1 : P1
9.BE.67	Jinshajiangite	BaNaFe²⁺₄Ti₂(Si₂O₇)₂O₂(OH)₂F	Tric. 1 : P1
9.BE.67	Perraultite	BaNaMn²⁺₄Ti₂(Si₂O₇)₂O₂(OH)₂F	Tric. 1
9.BE.70	Dingdaohengite-(Ce)	(Ce,La)₄Fe²⁺(Ti,Fe²⁺,Mg,Fe³⁺)₂Ti₂(Si₂O₇)₂O₈	Mon. 2/m : P2₁/b
9.BE.70	Perrierite-(Ce)	Ce₄MgFe³⁺₂Ti₂(Si₂O₇)₂O₈	Mon. 2/m : P2₁/b
9.BE.70	Karnasurtite-(Ce)	(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si₂O₇)(OH)₄ · 3H₂O	Amor.
9.BE.70	Maoniupingite-(Ce)	(Ce,Ca)₄(Fe³⁺,Ti,Fe²⁺,◻)(Ti,Fe³⁺,Fe²⁺,Nb)₄(Si₂O₇)₂O₈	Mon. 2/m : B2/m
9.BE.70	Matsubaraite	Sr₄Ti₅(Si₂O₇)₂O₈	Mon. 2/m : P2₁/b
9.BE.70	Rengeite	Sr₄ZrTi₄(Si₂O₇)₂O₈	Mon. 2/m : P2₁/b
9.BE.70	Polyakovite-(Ce)	(Ce,Ca)₄(Mg,Fe²⁺)(Cr³⁺,Fe³⁺)₂(Ti,Nb)₂(Si₂O₇)₂O₈	Mon. 2/m : B2/m
9.BE.70	Hezuolinite	(Sr,REE)₄Zr(Ti,Fe³⁺)₄(Si₂O₇)₂O₈	Mon. 2/m : B2/m
9.BE.70	'UM2008-53-SiO:SrTiZr'	Sr₄ZrTi₄(Si₂O₇)₂O₈	Orth. mmm(2/m2/m2/m) : Pbca
9.BE.70	Chevkinite-(Ce)	Ce₄(Ti,Fe²⁺,Fe³⁺)₅O₈(Si₂O₇)₂	Mon. 2/m : P2₁/b
9.BE.70	Perrierite-(La)	(La,Ce,Ca)₄(Fe²⁺,Mn)(Ti,Fe³⁺,Al)₄[(Si₂O₇)O₄]₂	Mon. 2/m : P2₁/b
9.BE.70	Strontiochevkinite	(Sr,La,Ce,Ca)₄Fe²⁺(Ti,Zr)₂Ti₂(Si₂O₇)₂O₈	Mon. 2/m : P2₁/b
9.BE.72	Fersmanite	Ca₄(Na,Ca)₄(Ti,Nb)₄(Si₂O₇)₂O₈F₃	Tric.
9.BE.75	Belkovite	Ba₃(Nb,Ti)₆(Si₂O₇)₂O₁₂	Hex. 6m2 : P62m
9.BE.77	Nasonite	Pb₆Ca₄(Si₂O₇)₃Cl₂	Hex. 6/m : P6₃/m
9.BE.80	Melanotekite	Pb₂Fe³⁺₂(Si₂O₇)O₂	Orth. 222 : C222₁
9.BE.80	Kentrolite	Pb₂Mn³⁺₂(Si₂O₇)O₂	Orth. mmm(2/m2/m2/m) : Pbcm
9.BE.82	Alexkuznetsovite-(La)	La₂Mn(CO₃)(Si₂O₇)	Mon. 2/m : P2₁/b
9.BE.82	Tilleyite	Ca₅(Si₂O₇)(CO₃)₂	Mon. 2/m : P2₁/b
9.BE.85	Killalaite	Ca_6.4(H_0.6Si₂O₇)₂(OH)₂	Mon. 2/m : P2₁/m
9.BE.87	Stavelotite-(La)	(La,Nd,Ca)₃Mn²⁺₃Cu(Mn³⁺,Fe³⁺,Mn⁴⁺)₂₆(Si₂O₇)₆O₃₀	Trig. 3 : P3₁
9.BE.90	Magnesiorowlandite-(Y)	Y₄(Mg,Fe)(Si₂O₇)₂F₂	Tric. 1 : P1
9.BE.90	Biraite-(Ce)	Ce₂Fe²⁺(Si₂O₇)(CO₃)	Mon. 2/m : P2₁/b
9.BE.92	Cervandonite-(Ce)	(Ce,Nd,La)(Fe³⁺,Fe²⁺,Ti,Al)₃O₂(Si₂O₇)(As³⁺O₃)(OH)	Trig. 3m : R3m
9.BE.92	Chirvinskyite	(Na,Ca)₁₃(Fe,Mn,◻)₂(Ti,Zr)₅(Si₂O₇)₄(OH,O)₁₂ · 2H₂O	Tric. 1 : P1
9.BE.95	Rusinovite	Ca₁₀(Si₂O₇)₃Cl₂	Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.95	Batisivite	BaV³⁺₈Ti₆(Si₂O₇)O₂₂	Tric. 1 : P1
9.BE.97	Schlüterite-(Y)	(Y,REE)₂AlSi₂O₇(OH)₂F	Mon. 2/m : P2₁/b

Other InformationHide

Health Risks:

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Internet Links for MurmaniteHide

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Raman and XRD data at RRUFF project

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References for MurmaniteHide

Reference List:

Gutkova, N. (1930) Sur un nouveau titano-silicate - la mourmanite de Lujawrurt. Doklady Akademii Nauk SSSR, seriya A: 27: 731-736.

Fleischer, Michael (1963) New Mineral Names. American Mineralogist, 48 (11-12) 1413-1421

Khalilov, A.D., Mamedov, K.S., Makarov, E.S., Pyanzina, L.A. (1965) Crystal structure of murmanite. Doklady Akademii Nauk SSSR: 161: 1409-1411.

Vlasov, K.A., Kuz'menko, M.V., Es'kova, E.M. (1966) The Lovozero alkali massif. Doklady Akademii Nauk SSSR: 347-351. (in English)

Karup-Møller, S. (1986) Murmanite from the Ilímaussaq alkaline complex, South Greenland. Neues Jahrbuch für Mineralogie - Abhandlungen: 155: 67-88.

Rastsvetaeva, R.K., Andrianov, V.I. (1986) New data on the crystal structure of murmanite. Soviet Physics - Crystallography: 31: 44-48.

Jambor, John L.; Bladh, Kenneth W.; Ercit, T. Scott; Grice, Joel D.; Grew, Edward S. (1988) New mineral names. American Mineralogist, 73 (7-8). 927-935

Khalilov, A.D. (1989) Refinement of the crystal structure of murmanite and new data on its crystal-chemical characteristics. Mineralogicheskii Zhurnal, Kiev: 11(5): 19-27.

(2001) Murmanite. Handbook of Mineralogy. Mineralogical Society of America

Nemeth, P., Ferraris, G., Radnoczi, G., Ageeva, O. A. (2005) TEM and X-ray study of syntactic intergrowths of epistolite, murmanite and shkatulkalite. The Canadian Mineralogist, 43 (3) 973-987 doi:10.2113/gscanmin.43.3.973

Locock, Andrew J., Piilonen, Paula C., Ercit, T. Scott, Rowe, Ralph (2006) New Mineral Names. American Mineralogist, 91 (1) 216-224 doi:10.2138/am.2006.454

Sokolova, E. (2006) From structure topology to chemical composition. I. Structural hierarchy and stereochemistry in titanium disilicate minerals. The Canadian Mineralogist, 44 (6) 1273-1330 doi:10.2113/gscanmin.44.6.1273

Cámara, F., Sokolova, E., Hawthorne, F. C., Abdu, Y. (2008) From structure topology to chemical composition. IX. Titanium silicates: revision of the crystal chemistry of lomonosovite and murmanite, Group-IV minerals. Mineralogical Magazine, 72 (6) 1207-1228 doi:10.1180/minmag.2008.072.6.1207

Lykova, Inna S.; Pekov, Igor V.; Zubkova, Natalia V.; Chukanov, Nikita V.; Yapaskurt, Vasiliy O.; Chervonnaya, Nadezhda A.; Zolotarev, Andrey A. (2015) Crystal chemistry of cation-exchanged forms of epistolite-group minerals, Part I. Ag- and Cu-exchanged lomonosovite and Ag-exchanged murmanite. European Journal of Mineralogy, 27 (4). 535-549 doi:10.1127/ejm/2015/0027-2445

Lykova, Inna S., Pekov, Igor V., Zubkova, Natalia V., Yapaskurt, Vasiliy O., Chervonnaya, Nadezhda A., Zolotarev, Andrey A., Giester, Gerald (2015) Crystal chemistry of cation-exchanged forms of epistolite-group minerals. Part II. Vigrishinite and Zn-exchanged murmanite. European Journal of Mineralogy, 27 (5) 669-682 doi:10.1127/ejm/2015/0027-2469

Localities for MurmaniteHide

Showing 36 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

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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.


Brazil
Santa Catarina ⓘ Lages	G Traversa et al (1994)

Canada
Newfoundland and Labrador Labrador ⓘ Red Wine Alkaline Complex	GSC locality database +2 other references

Greenland
Kujalleq ⓘ Ilímaussaq complex	Sørensen (2001) +1 other reference
Kuannersuit Plateau (Kvanefjeld) Kvanefjeld deposit ⓘ Kvanefjeld adit	Sørensen et al. (2001)
Tunulliarfik Fjord ⓘ Ilua Bay	Otter (2023)

Romania
Harghita County ⓘ Ditrău Complex	Hirtopanu (2006)

Russia
Khabarovsk Krai Ayano-Maysky district ⓘ Konder alkaline-ultrabasic massif	Lennikov et al. (2004)
Murmansk Oblast ⓘ Eudialyte Pass	Mitchell et al. (1996) +1 other reference
ⓘ Eveslogchorr Mt	Men'shikov (2006) +1 other reference
ⓘ Vein No. 3	Men'shikov (2006)
ⓘ Kaskasnyunchorr Mountain	Yakovenchuk et al. (2008)
Koashva Mt ⓘ Koashva Open Pit	Takai et al. (2011)
ⓘ Kukisvumchorr Mt	Pekov et al. (2004)
Kirovskii apatite mine ⓘ 252 m level	Yakovenchuk et al. (2024)
ⓘ Lovozero Massif	Mikhailova et al. (2022)
Lovozersky District ⓘ Alluaiv Mountain	Pekov (1998) +1 other reference
ⓘ Umbozero mine	Knut Edvard Larsen collection # 1036 +1 other reference
ⓘ Shomiokitovoe pegmatite	Pekov (2000)
ⓘ Umbozero North quarry	Pavel M. Kartashov (n.d.)
ⓘ Angvundaschorr Mt	Pekov (2000)
ⓘ Angvundasiok River	Pekov (1998)
ⓘ Chinglusuai River Valley (TL)	Pekov (1998)
ⓘ Karnasurt Mountain	Arzamastsev et al. (2008) +1 other reference
Second Eastern Stream ⓘ Pegmatite No. 60	Pekov (1998)
ⓘ Yubileinaya-2 pegmatite	Kasatkin (2019)
ⓘ Kedykverpakhk Mountain	[World of Stones 95:5-6
ⓘ Pegmatite No. 31	Pekov (1998)
ⓘ Kontozero carbonatite	Petrovsky et al. (2012)
ⓘ Malyi Punkaruaiv Mountain	Pekov (1998) +2 other references
ⓘ Pegmatite No. 71	Ermolaeva et al. (2007)
ⓘ Raslak Cirques (TL)	Pekov (1998)
ⓘ Selsurt Mountain	[World of Stones 95:5-6 +1 other reference
Tyulbnyunuai River Valley ⓘ Medvezh'ya Berloga pegmatite (Pegmatite No. 13)	Pekov (1998)
ⓘ Upper Elmaraiok River	Am Min (1941)
ⓘ N'orkpakhk Mt	Marek Patus collection
ⓘ Yukspor Mountain

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Murmanite

About MurmaniteHide

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Classification of MurmaniteHide

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Physical Properties of MurmaniteHide

Optical Data of MurmaniteHide

Chemistry of MurmaniteHide

Crystallography of MurmaniteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of MurmaniteHide

Synonyms of MurmaniteHide

Other Language Names for MurmaniteHide

Relationship of Murmanite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for MurmaniteHide

References for MurmaniteHide

Localities for MurmaniteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide