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Lomonosovite

A valid IMA mineral species - grandfathered

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Edit Lomonosovite Add Synonym Edit CIF structures Clear Cache

Lomonosovite, etc.

Yubileinaya pegmatite, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Lomonosovite, etc.

Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

Lomonosovite

Kvanefjeld adit, Kvanefjeld deposit, Kuannersuit Plateau, Ilímaussaq complex, Kujalleq, Greenland

Lomonosovite, etc.

Yubileinaya pegmatite, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Lomonosovite, etc.

Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

Lomonosovite

Kvanefjeld adit, Kvanefjeld deposit, Kuannersuit Plateau, Ilímaussaq complex, Kujalleq, Greenland

Lomonosovite, etc.

Yubileinaya pegmatite, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia

Lomonosovite, etc.

Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

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About LomonosoviteHide

Russian scholar and poet, Mikhail Vasil’evich Lomonosov.

Formula:

Na₅Ti₂(Si₂O₇)(PO₄)O₂

Colour:

Dark cinnamon-brown to black, also rose-violet

Lustre:

Adamantine, Vitreous, Greasy

Hardness:

3 - 4

Specific Gravity:

2.88 - 3.13

Crystal System:

Triclinic

Member of:

Murmanite Group > Seidozerite Supergroup

Name:

Named in honor of Mikhail Vassil’evich Lomonosov (Михаил Васильевич Ломоносов) (19 November 1711, Mishaninskaya, Archangelgorod Governorate, Tsardom of Russia - 15 April 1765, Saint Petersburg, Russian Empire), polymath who made contributions in the areas of natural science, chemistry, physics, mineralogy, history, art, philology, and language. He wrote multiple books on geology/mineralogy and discovered the law of constancy of interfacial angles, relating it with inner structure of crystals.

Type Locality:

ⓘ Pegmatite No. 65, Chinglusuai River Valley, Lovozersky District, Murmansk Oblast, Russia

Compare betalomonosovite and 'UM1988-04-SiOPO:CaFeHNaNbTi'.

Unique IdentifiersHide

Mindat ID:

2428

Long-form identifier:

mindat:1:1:2428:6

Similar NamesHide

β-Lomonosovit
β-Lomonosovita
β-Lomonosovite	A synonym of Paralomonosovite

IMA Classification of LomonosoviteHide

IMA status:

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

IMA Formula:

Na₆Na₂Ti⁴⁺₂Na₂Ti⁴⁺₂(Si₂O₇)₂(PO₄)₂O₄

First published:

1950

Type description reference:

Gerasimovsky, V.I. (1950) Lomonosovite - a new mineral. Doklady Akademii Nauk SSSR: 70: 83-86.

Classification of LomonosoviteHide

Strunz-mindat (2026):

9.BE.32

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

Dana 8th ed.:

56.4.1.1

56 : SOROSILICATES Si₂O₇ Groups, With Additional O, OH, F and H₂O
4 : Si₂O₇ Groups and O, OH, F, and H₂O with [Si₂O₇] with other cation groups

Hey's CIM Ref.:

17.6.7

17 : Silicates Containing other Anions
6 : Silicates with phosphate

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
Lom	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 LomonosoviteHide

Lustre:

Adamantine, Vitreous, Greasy

Transparency:

Transparent

Colour:

Dark cinnamon-brown to black, also rose-violet

Comment:

Transparent in thin plates.

Streak:

Light rose-cinnamon

Hardness:

3 - 4 on Mohs scale

Tenacity:

Brittle

Cleavage:

Perfect

Fracture:

Irregular/Uneven

Density:

2.88 - 3.13 g/cm³ (Measured) 3.04 g/cm³ (Calculated)

Optical Data of LomonosoviteHide

Type:

Biaxial (-)

RI values:

n_α = 1.670 n_β = 1.750 n_γ = 1.778

2V:

Measured: 56° , Calculated: 58°

Max. Birefringence:

δ = 0.108
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 or r < v

Optical Extinction:

X ∧ cleavage = 61°-66°; Y ∧ cleavage = 59°-65°; Z ∧ cleavage = 37°-41°.

Pleochroism:

Strong

Comments:

X = yellow, pale yellow, nearly colorless; Y = brownish, yellow-orange, lilac; Z = yellowish brown, dark brown, dark blackish brown.

Comments:

Absorption: Z > Y > X.

Chemistry of LomonosoviteHide

Mindat Formula:

Na₅Ti₂(Si₂O₇)(PO₄)O₂

Element Weights:

Element	% weight
O	41.120 %
Na	22.725 %
Ti	18.927 %
Si	11.105 %
P	6.124 %

Calculated from ideal end-member formula.

Elements listed:

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

Common Impurities:

Zr,Fe,Nb,Ta,Mn,Mg,Ca,Cl,H₂O

Crystallography of LomonosoviteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pedial

Space Group:

Cell Parameters:

a = 5.49 Å, b = 7.11 Å, c = 14.5 Å
α = 101°, β = 96°, γ = 90°

Ratio:

a:b:c = 0.772 : 1 : 2.039

Unit Cell V:

552.43 Å³ (Calculated from Unit Cell)

Morphology:

Thin lamellar or tabular crystals.

Twinning:

Fine polysynthetic twinning observed.

Comment:

Niobium-rich lomonosovite variety are a = 5.411(1) Å, b = 7.108(1) Å, c = 14.477(2) Å, α = 99.78(1)°, β = 96.59(1)°, γ = 90.26(1)°, V = 544.94(5) Å3, Z = 1, sp. gr. P1.

Crystal StructureHide

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

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

Rotation
Stop | Start

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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)
0018518	Lomonosovite	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	Lovozero alkaline massif, Russia	0	293
0015603	Lomonosovite	Belov N V, Gavrilova G S, Solov'eva L P, Khalilov A D (1977) The refined structure of lomonosovite Soviet Physics Doklady 22 422-424		1977		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Lomonosovite'
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 0018518
_chemical_compound_source 'Lovozero alkaline massif, Russia'
_chemical_formula_sum 'Na4.75 Ca.055 Mn.215 Ti1.415 Nb.255 Fe.08 Ta.005 Zr.055 Mg.055 Si2 P O13'
_cell_length_a 5.4170
_cell_length_b 7.1190
_cell_length_c 14.487
_cell_angle_alpha 99.957
_cell_angle_beta 96.711
_cell_angle_gamma 90.360
_cell_volume 546.286
_exptl_crystal_density_diffrn      3.171
_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)   0.17183   0.41851   0.23393   0.97500   0.01759
Na(2)   0.75658   0.88235  -0.00370   0.97500   0.02310
Na(3)   0.67740   0.97076   0.36205   0.94500   0.01881
Ca(3)   0.67740   0.97076   0.36205   0.05500   0.01881
Na(4)   0.67504   0.45798   0.39770   0.85500   0.02085
Mn2+(4)   0.67504   0.45798   0.39770   0.08000   0.02085
Na(5)   0.23789   0.74012   0.41534   1.00000   0.02180
Ti(1)   0.16618   0.92849   0.21810   0.76000   0.00803
Mn2+(1)   0.16618   0.92849   0.21810   0.02500   0.00803
Nb(1)   0.16618   0.92849   0.21810   0.15500   0.00803
Fe3+(1)   0.16618   0.92849   0.21810   0.03000   0.00803
Ta(1)   0.16618   0.92849   0.21810   0.00500   0.00803
Fe2+(1)   0.16618   0.92849   0.21810   0.02500   0.00803
Ti(2)   0.77151   0.38667  -0.00770   0.65500   0.01302
Mn2+(2)   0.77151   0.38667  -0.00770   0.11000   0.01302
Nb(2)   0.77151   0.38667  -0.00770   0.10000   0.01302
Zr(2)   0.77151   0.38667  -0.00770   0.05500   0.01302
Mg(2)   0.77151   0.38667  -0.00770   0.05500   0.01302
Fe2+(2)   0.77151   0.38667  -0.00770   0.02500   0.01302
Si(1)   0.66652   0.20422   0.17702   1.00000   0.00734
Si(2)   0.64975   0.64040   0.19841   1.00000   0.00697
P   0.17814   0.22491   0.43221   1.00000   0.00901
O(1)   0.67330   0.42899   0.23057   1.00000   0.01320
O(2)   0.63916   0.19579   0.06524   1.00000   0.01290
O(3)   0.92870   0.12230   0.21347   1.00000   0.01940
O(4)   0.43660   0.10347   0.21026   1.00000   0.02190
O(5)   0.59482   0.60837   0.08374   1.00000   0.01270
O(6)   0.90590   0.75276   0.24541   1.00000   0.01430
O(7)   0.41669   0.73437   0.24916   1.00000   0.01170
O(8)   0.12981   0.83454   0.09180   1.00000   0.01460
O(9)   0.08800   0.42270   0.07013   1.00000   0.01400
O(10)   0.23599   0.03479   0.36655   1.00000   0.01280
O(11)   0.90049   0.22363   0.44212   1.00000   0.01870
O(12)   0.24970   0.39967   0.39089   1.00000   0.01810
O(13)   0.32940   0.23068   0.52885   1.00000   0.02020
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) 0.01700 0.02170 0.01390 -0.00370 0.00060 0.00350
Na(2) 0.01260 0.01590 0.03560 0.00290 -0.00520 -0.00450
Na(3) 0.02220 0.01420 0.01810 -0.00028 -0.00070 -0.00057
Ca(3) 0.02220 0.01420 0.01810 -0.00028 -0.00070 -0.00057
Na(4) 0.02670 0.01610 0.01860 0.00330 0.00080 0.00110
Mn2+(4) 0.02670 0.01610 0.01860 0.00330 0.00080 0.00110
Na(5) 0.03120 0.01550 0.02030 0.00240 0.00550 0.00580
Ti(1) 0.00720 0.00757 0.00951 0.00042 0.00135 0.00179
Mn2+(1) 0.00720 0.00757 0.00951 0.00042 0.00135 0.00179
Nb(1) 0.00720 0.00757 0.00951 0.00042 0.00135 0.00179
Fe3+(1) 0.00720 0.00757 0.00951 0.00042 0.00135 0.00179
Ta(1) 0.00720 0.00757 0.00951 0.00042 0.00135 0.00179
Fe2+(1) 0.00720 0.00757 0.00951 0.00042 0.00135 0.00179
Ti(2) 0.01771 0.01111 0.00982 0.00247 0.00013 0.00161
Mn2+(2) 0.01771 0.01111 0.00982 0.00247 0.00013 0.00161
Nb(2) 0.01771 0.01111 0.00982 0.00247 0.00013 0.00161
Zr(2) 0.01771 0.01111 0.00982 0.00247 0.00013 0.00161
Mg(2) 0.01771 0.01111 0.00982 0.00247 0.00013 0.00161
Fe2+(2) 0.01771 0.01111 0.00982 0.00247 0.00013 0.00161
Si(1) 0.00813 0.00652 0.00755 0.00007 0.00122 0.00152
Si(2) 0.00819 0.00614 0.00644 0.00011 0.00051 0.00092
P 0.01012 0.00799 0.00866 0.00022 0.00141 0.00056
O(1) 0.02330 0.00640 0.00980 0.00170 0.00190 0.00150
O(2) 0.01560 0.01440 0.00810 0.00090 0.00070 0.00130
O(3) 0.01740 0.01800 0.02150 0.00910 -0.00360 0.00350
O(4) 0.02130 0.02080 0.02400 -0.01120 0.00980 0.00090
O(5) 0.01820 0.01280 0.00670 -0.00060 0.00040 0.00150
O(6) 0.01210 0.01780 0.01260 -0.00660 0.00110 0.00240
O(7) 0.01050 0.01320 0.01110 0.00470 0.00100 0.00110
O(8) 0.01440 0.01950 0.00890 -0.00250 0.00110 0.00010
O(9) 0.02030 0.01130 0.01080 0.00040 0.00240 0.00240
O(10) 0.01750 0.00920 0.01120 0.00260 0.00240 -0.00030
O(11) 0.01190 0.01960 0.02470 0.00090 0.00650 0.00110
O(12) 0.02720 0.01040 0.01760 -0.00260 0.00470 0.00360
O(13) 0.02730 0.01730 0.01330 0.00140 -0.00590 0.00080

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.83 Å	(100)
1.778 Å	(90)
1.840 Å	(80)
2.73 Å	(70)
2.65 Å	(70)
2.60 Å	(70)
2.08 Å	(70)

Comments:

Lovozero massif, Russia.

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

Type Occurrence of LomonosoviteHide

Type Locality:

ⓘ Pegmatite No. 65, Chinglusuai River Valley, Lovozersky District, Murmansk Oblast, Russia

General Appearance of Type Material:

Laminated tabular crystals up to 7x5x0.6 cm.

Place of Conservation of Type Material:

No designated type material.

Geological Setting of Type Material:

Pegmatites in syenite.

Associated Minerals at Type Locality:

Aegirine	Arfvedsonite	Eudialyte	'Hackmanite'	Lamprophyllite
Lorenzenite	Microcline	Molybdenite	Neotocite	Neptunite
'Nordite'	Sphalerite	Ussingite

Reference:

Gerasimovsky, V.I. (1950) Lomonosovite - a new mineral. Doklady Akademii Nauk SSSR: 70: 83-86.

Other Language Names for LomonosoviteHide

Dutch:Lomonosoviet

German:Lomonosovit
Lomonossowit

Russian:Ломоносовит

Simplified Chinese:磷硅钛钠石

Spanish:Lomonosovita

Traditional Chinese:磷矽鈦鈉石

Relationship of Lomonosovite 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
Murmanite	Na₂Ti₂(Si₂O₇)O₂ · 2H₂O	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:

21 photos of Lomonosovite associated with Aegirine	NaFe³⁺Si₂O₆
11 photos of Lomonosovite associated with Microcline	K(AlSi₃O₈)
7 photos of Lomonosovite associated with Villiaumite	NaF
7 photos of Lomonosovite associated with Leucosphenite	BaNa₄Ti₂B₂Si₁₀O₃₀
7 photos of Lomonosovite associated with Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
6 photos of Lomonosovite associated with Zorite	Na₈(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅ · 14H₂O
6 photos of Lomonosovite associated with Lamprophyllite	(Na,Mn²⁺)₃(Sr,Na)₂(Ti,Fe³⁺)₃(Si₂O₇)₂O₂(OH,O,F)₂
5 photos of Lomonosovite associated with Bornemanite	Na₆BaTi₂Nb(Si₂O₇)₂(PO₄)O₂(OH)F
5 photos of Lomonosovite associated with Raite	Mn²⁺Mn²⁺₂Na₂(◻_1.75Ti_0.25)Si₈O₂₀(OH)₂(H₂O)₄ · Na(H₂O)₆
4 photos of Lomonosovite associated with Nepheline	Na₃K(Al₄Si₄O₁₆)

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.27	Murmanite	Na₂Ti₂(Si₂O₇)O₂ · 2H₂O	Tric. 1 : P1
9.BE.30	Epistolite	(Na◻)Nb₂Na₃Ti(Si₂O₇)₂O₂(OH)₂(H₂O)₄	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

Notes:

Leaching lomonosovite with hot or cold water dissolves Na3PO4 from it.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for LomonosoviteHide

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References for LomonosoviteHide

Reference List:

338-347. (in English)

Gerasimovsky, V.I. (1950) Lomonosovite - a new mineral. Doklady Akademii Nauk SSSR: 70: 83-86.

Fleischer, M. (1950) New mineral names. American Mineralogist, 35 (11-12). 1091-1094

Gerasimovsky, V.I. (1950) Lomonosovite - a new mineral. Doklady Akademii Nauk SSSR: 70: 83-86.

Belov, N.V., Organova, N.I. (1962) Crystal chemistry and mineralogy of the lomonosovite group in the light of the crystal structure of lomonosovite. Geochemistry: 1: 4-13.

Vlasov, K. A.; Kuz'menko, M. Z.; Es'kova, E. M. (1966) The Lovozero Alkali Massif. Oliver and Boyd.

IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 36 (277) 131-136 doi:10.1180/minmag.1967.036.277.20

Rastsvetaeva, R.K. (1971) Kristallicheskaya struktura lomonosovita Na5Ti2[Si2O7][PO4]O2. Soviet Physics - Doklady: 16: 182-185.

Rastsvetaeva, R.K., Sirota, M.I., Belov, N.V. (1975) Crystal structure of beta lomonosovite. Soviet Physics - Crystallography: 20: 158-160.

Belov, N.V., Gavrilova, G.S., Solov'eva, L.P., and Khalilov, A.D. (1977) Refined structure of lomonosovite. Soviet Physics – Doklady: 22: 422-424.

Belov, N.V., Gavrilova, G.S., Solov'eva, L.P., Khailov, A.D. (1977) The refined structure of lomonosovite. Doklady Akademii Nauk SSSR: 235: 1064-1067.

Karup-Møller, S. (1983) Lomonosovite from the Ilímaussaq intrusion, South Greenland. Neues Jahrbuch für Mineralogie, Abhandlungen, 148, 83-96.

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

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, I.S., Pekov, I.V., Zubkova, N.V., Chuckanov, N.V., Yapaskurt, V.O., Chervonnaya, N.A., Zolotarev, A.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: 535-549.

Sokolova, E.; Cámara, F. (2017) The seidozerite supergroup of TS-block minerals: nomenclature and classification, with change of the following names: rinkite to rinkite-(Ce), mosandrite to mosandrite-(Ce), hainite to hainite-(Y) and innelite-1T to innelite-1A. Mineralogical Magazine, 81 (6). p.1457-1484. doi:10.1180/minmag.2017.081.010

Rastsvetaeva, R. K., Zaitsev, V. A., & Pekov, I. V. (2020). Crystal Structure of Niobium-Rich Lomonosovite with Symmetry P 1 from the Khibiny Massif (Kola Peninsula). Crystallography Reports, 65, 422-427.

Localities for LomonosoviteHide

Showing 28 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.


Greenland
Kujalleq ⓘ Ilímaussaq complex	Petersen (2001) +1 other reference
Kuannersuit Plateau (Kvanefjeld) Kvanefjeld deposit ⓘ Drill Core 49	Sørensen et al. (2001)
ⓘ Kvanefjeld adit	Sørensen et al. (2001)

Russia
Murmansk Oblast ⓘ Koashkar Mt	Pekov (1998)
Koashva Mt ⓘ IGC Stop 2-2	Arzamastsev et al. (2008)
ⓘ Koashva Open Pit	[World of Stones 95:5-6 +6 other references
Kukisvumchorr Mt ⓘ Kirovskii apatite mine	Pekov (1998)
ⓘ Lovozero Massif	Mikhailova et al. (2022)
Lovozersky District ⓘ Alluaiv Mountain	Pekov (1998) +1 other reference
ⓘ Umbozero mine	Pavel M. Kartashov (n.d.)
ⓘ Shkatulka pegmatite	A. P. Khomyakov et al. +1 other reference
ⓘ Sirenevaya pegmatite	Pavel M. Kartashov (n.d.)
ⓘ Angvundasiok River	Pekov (1998)
ⓘ Chinglusuai River Valley	Pekov (1998)
ⓘ Pegmatite No. 65 (TL)	Pekov (1998)
ⓘ Karnasurt Mountain	Pekov (1998) +1 other reference
ⓘ Karnasurt mine	Rastsvetaeva +3 other references
ⓘ Palitra pegmatite	Pekov et al. (2003) +1 other reference
ⓘ Yubileinaya pegmatite	Pekov (1998) +1 other reference
ⓘ Kedykverpakhk Mountain	Pakhomovsky et al. (2014)
Tyulbnyunuai River Valley ⓘ Medvezh'ya Berloga pegmatite (Pegmatite No. 13)	Pekov (1998)
ⓘ N'orkpakhk Mt	ZVMO 135 (1) +1 other reference
ⓘ Rasvumchorr Mt	Am Min 79:1011 +2 other references
Rasvumchorr Mine ⓘ Apatitovyi Tsirk	Pekov (1998)
ⓘ Tsentral'nyi Mine	Sokolova et al. (2005) +2 other references
ⓘ Vuonnemiok River Valley	Pekov (1998) +1 other reference
ⓘ Yukspor Mountain	Pekov (1998)
ⓘ Material'naya Adit	Khomyakov et al. (1983) +1 other reference

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Lomonosovite

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