Khomyakov, A.P., Nechelyustov, G.N., Sokolova, E.A., Dorokhova, G.I. (1992) Quadruphite Na14CaMgTi4-[Si207]2[P04]404F2 and polyphite Na17Ca3Mg(Ti,Mn)4-[Si207]2[P04]602F6: New minerals of the lomonosovite group. Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva, 121(1), 105-112 (in Russian).

Classification of QuadruphiteHide

Strunz-mindat (2026):

9.BE.45

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

Dana 8th ed.:

56.4.1.3

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

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
Qua	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 QuadruphiteHide

Lustre:

Vitreous, Resinous, Pearly, Metallic

Transparency:

Transparent, Translucent

Comment:

Vitreous and resinous on fractures, pearly to mirrorlike or metallic on cleavages.

Colour:

Light brown

Streak:

White

Hardness:

5 on Mohs scale

Tenacity:

Brittle

Cleavage:

Perfect
Perfect {001} and less perfect {110} and {100}.

Fracture:

Step-Like

Density:

3.12 g/cm³ (Measured) 3.11 g/cm³ (Calculated)

Optical Data of QuadruphiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.630 n_β = 1.678 n_γ = 1.697

2V:

Measured: 62°

Max. Birefringence:

δ = 0.067
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:

Moderate

Dispersion:

r < v, strong

Pleochroism:

Visible

Comments:

Colorless (X) to yellowish (Y, Z) with X < Y ~ Z.

Chemistry of QuadruphiteHide

Mindat Formula:

Na₆Na₂(CaNa)₂Na₂Ti₂Na₂Ti₂(Si₂O₇)₂(PO₄)₄O₄F₂

Element Weights:

Element	% weight
O	38.534 %
Na	22.799 %
Ti	13.563 %
P	8.776 %
Si	7.958 %
Ca	5.678 %
F	2.692 %

Calculated from ideal end-member formula.

Elements listed:

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

Common Impurities:

Sr,Ba,Mn,Fe,Zr,Nb

Crystallography of QuadruphiteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pedial

Space Group:

Cell Parameters:

a = 5.415(2) Å, b = 7.081(3) Å, c = 20.34(1) Å
α = 86.85(4)°, β = 94.40(4)°, γ = 89.94(3)°

Ratio:

a:b:c = 0.765 : 1 : 2.872

Unit Cell V:

776.42 Å³ (Calculated from Unit Cell)

Morphology:

Flakes on {001}.

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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Stop | Start

Labels
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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)
0005739	Quadruphite	Sokolova E V, Hawthorne F C (2001) The crystal chemistry of the [M3_11-14] trimeric structures: From hyperagpaitic complexes to saline lakes The Canadian Mineralogist 39 1275-1294		2001		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Quadruphite'
loop_
_publ_author_name
'Sokolova E V'
'Hawthorne F C'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 39 
_journal_year 2001
_journal_page_first 1275
_journal_page_last 1294
_publ_section_title
;
 The crystal chemistry of the [M3_11-14] trimeric structures:
 From hyperagpaitic complexes to saline lakes
;
_database_code_amcsd 0005739
_chemical_formula_sum 'Ti2.55 Nb.44 Zr.47 Mn.85 Fe.1 Na13.59 Mg.5 Ca1.44 Sr.06 P4 Si4 F2 O34'
_cell_length_a 5.4206
_cell_length_b 7.0846
_cell_length_c 20.3641
_cell_angle_alpha 86.89
_cell_angle_beta 94.42
_cell_angle_gamma 89.94
_cell_volume 778.553
_exptl_crystal_density_diffrn      3.122
_symmetry_space_group_name_H-M 'P 1'
loop_
_space_group_symop_operation_xyz
  '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
TiA(1)   0.69487   0.98405   0.64379   0.63000   0.00910
NbA(1)   0.69487   0.98405   0.64379   0.22000   0.00910
ZrA(1)   0.69487   0.98405   0.64379   0.15000   0.00910
TiA(2)   0.41629   0.32801   0.33580   0.63000   0.00930
NbA(2)   0.41629   0.32801   0.33580   0.22000   0.00930
ZrA(2)   0.41629   0.32801   0.33580   0.15000   0.00930
TiA(3)  -0.21580   0.76730   0.49479   0.65000   0.01230
MnA(3)  -0.21580   0.76730   0.49479   0.22000   0.01230
FeA(3)  -0.21580   0.76730   0.49479   0.05000   0.01230
ZrA(3)  -0.21580   0.76730   0.49479   0.08000   0.01230
TiA(4)  -0.67190   0.54440   0.48481   0.64000   0.01210
MnA(4)  -0.67190   0.54440   0.48481   0.22000   0.01210
FeA(4)  -0.67190   0.54440   0.48481   0.05000   0.01210
ZrA(4)  -0.67190   0.54440   0.48481   0.09000   0.01210
NaM(1)   0.86250   0.15260   0.07805   0.44000   0.01900
MgM(1)   0.86250   0.15260   0.07805   0.25000   0.01900
MnM(1)   0.86250   0.15260   0.07805   0.21000   0.01900
CaM(1)   0.86250   0.15260   0.07805   0.10000   0.01900
CaM(2)   0.31210   0.39250   0.03394   0.69000   0.01750
NaM(2)   0.31210   0.39250   0.03394   0.31000   0.01750
CaM(3)  -0.21330   0.91960   0.94546   0.56000   0.01980
NaM(3)  -0.21330   0.91960   0.94546   0.38000   0.01980
SrM(3)  -0.21330   0.91960   0.94546   0.06000   0.01980
NaM(4)   0.31060   0.15910   0.90089   0.46000   0.01870
MgM(4)   0.31060   0.15910   0.90089   0.25000   0.01870
MnM(4)   0.31060   0.15910   0.90089   0.20000   0.01870
CaM(4)   0.31060   0.15910   0.90089   0.09000   0.01870
Na(1)  -0.21590   0.40480   0.93580   1.00000   0.01580
Na(2)   0.74930   0.69910   0.78850   1.00000   0.02780
Na(3)   0.41510  -0.16060   0.32560   1.00000   0.02090
Na(4)   0.25760   0.95930   0.74570   1.00000   0.02210
Na(5)   0.90320   0.35120   0.23410   1.00000   0.02120
Na(6)  -0.20140   0.27260   0.49330   1.00000   0.02270
Na(7)   0.31200   0.04040   0.48650   1.00000   0.02230
Na(8)   0.28990   0.43030   0.76610   1.00000   0.03000
Na(9)   0.92060  -0.11760   0.21300   1.00000   0.02900
Na(10)  -0.30050   0.47370   0.65370   1.00000   0.02050
Na(11)   0.36010   0.61110   0.19010   1.00000   0.02870
Na(12)   0.31610  -0.09160   0.04370   1.00000   0.01610
P(1)   0.80240   0.18660   0.79434   1.00000   0.01300
P(2)   0.80180   0.63630   0.08917   1.00000   0.01390
P(3)   0.41740   0.12580   0.18494   1.00000   0.01330
P(4)   0.24480   0.67530   0.89000   1.00000   0.01370
Si(1)  -0.81180   0.27950   0.61430   1.00000   0.01110
Si(2)  -0.07280   0.60640   0.35112   1.00000   0.00980
Si(3)   0.18800   0.70550   0.62876   1.00000   0.01020
Si(4)  -0.08300   0.03360   0.36531   1.00000   0.01080
F(1)   0.56270   0.15630   0.99800   1.00000   0.02110
F(2)   0.05650   0.15630   0.98150   1.00000   0.02120
O(1)   0.72200   0.02040   0.75020   1.00000   0.02110
O(2)  -0.07930   0.99320   0.44330   1.00000   0.02120
O(3)  -0.52490   0.76450   0.44060   1.00000   0.01690
O(4)  -0.80940   0.32050   0.53590   1.00000   0.01600
O(5)  -0.02800   0.58600   0.43130   1.00000   0.01480
O(6)  -0.36210   0.54710   0.53910   1.00000   0.01530
O(7)   0.71620   0.37880   0.76330   1.00000   0.01420
O(8)   0.67170   0.95100   0.55300   1.00000   0.01420
O(9)   0.43970   0.36130   0.42640   1.00000   0.02430
O(10)   0.16200   0.53050   0.31510   1.00000   0.01780
O(11)   0.96020   0.78940   0.66550   1.00000   0.01770
O(12)   0.14300   0.72700   0.54860   1.00000   0.02350
O(13)   0.44830   0.78100   0.66100   1.00000   0.02230
O(14)   0.67330   0.52380   0.31840   1.00000   0.01490
O(15)   0.42800   0.16590   0.64400   1.00000   0.02130
O(16)   0.91290   0.61300   0.16030   1.00000   0.02510
O(17)   0.93390   0.18400   0.63390   1.00000   0.03710
O(18)  -0.80320   0.47990   0.65150   1.00000   0.01950
O(19)   0.34080   0.48410   0.92120   1.00000   0.03090
O(20)   0.87960   0.82760   0.05770   1.00000   0.02940
O(21)   0.69320   0.13150   0.17240   1.00000   0.02730
O(22)   0.68770   0.15180   0.86020   1.00000   0.02500
O(23)   0.08620   0.18300   0.80560   1.00000   0.02910
O(24)   0.88660   0.47550   0.04850   1.00000   0.03530
O(25)   0.51650   0.63040   0.08740   1.00000   0.02280
O(26)   0.31490   0.69900   0.81880   1.00000   0.02350
O(27)  -0.04080   0.68060   0.89140   1.00000   0.02360
O(28)   0.26180   0.16130   0.11890   1.00000   0.02410
O(29)   0.35230  -0.06450   0.21630   1.00000   0.02400
O(30)   0.35570   0.83660   0.93010   1.00000   0.03670
O(31)   0.36340   0.28980   0.23040   1.00000   0.01640
O(32)  -0.08560   0.83440   0.32860   1.00000   0.02140
O(33)  -0.32950   0.13950   0.33570   1.00000   0.04250
O(34)   0.15710   0.14080   0.34360   1.00000   0.04410
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
TiA(1) 0.00680 0.00740 0.01290 0.00010 0.00090 0.00000
NbA(1) 0.00680 0.00740 0.01290 0.00010 0.00090 0.00000
ZrA(1) 0.00680 0.00740 0.01290 0.00010 0.00090 0.00000
TiA(2) 0.00750 0.00760 0.01270 0.00020 0.00130 0.00020
NbA(2) 0.00750 0.00760 0.01270 0.00020 0.00130 0.00020
ZrA(2) 0.00750 0.00760 0.01270 0.00020 0.00130 0.00020
TiA(3) 0.01710 0.01000 0.00960 0.00020 -0.00020 0.00020
MnA(3) 0.01710 0.01000 0.00960 0.00020 -0.00020 0.00020
FeA(3) 0.01710 0.01000 0.00960 0.00020 -0.00020 0.00020
ZrA(3) 0.01710 0.01000 0.00960 0.00020 -0.00020 0.00020
TiA(4) 0.01800 0.00950 0.00870 0.00160 -0.00050 -0.00060
MnA(4) 0.01800 0.00950 0.00870 0.00160 -0.00050 -0.00060
FeA(4) 0.01800 0.00950 0.00870 0.00160 -0.00050 -0.00060
ZrA(4) 0.01800 0.00950 0.00870 0.00160 -0.00050 -0.00060
NaM(1) 0.02050 0.02000 0.01620 0.00080 0.00110 -0.00020
MgM(1) 0.02050 0.02000 0.01620 0.00080 0.00110 -0.00020
MnM(1) 0.02050 0.02000 0.01620 0.00080 0.00110 -0.00020
CaM(1) 0.02050 0.02000 0.01620 0.00080 0.00110 -0.00020
CaM(2) 0.02200 0.01520 0.01540 -0.00080 0.00180 -0.00180
NaM(2) 0.02200 0.01520 0.01540 -0.00080 0.00180 -0.00180
CaM(3) 0.02480 0.01830 0.01610 0.00040 0.00000 -0.00060
NaM(3) 0.02480 0.01830 0.01610 0.00040 0.00000 -0.00060
SrM(3) 0.02480 0.01830 0.01610 0.00040 0.00000 -0.00060
NaM(4) 0.02050 0.01980 0.01590 0.00060 0.00140 -0.00140
MgM(4) 0.02050 0.01980 0.01590 0.00060 0.00140 -0.00140
MnM(4) 0.02050 0.01980 0.01590 0.00060 0.00140 -0.00140
CaM(4) 0.02050 0.01980 0.01590 0.00060 0.00140 -0.00140
Na(1) 0.02060 0.01080 0.01550 -0.00250 -0.00110 0.00040
Na(2) 0.03690 0.01790 0.02760 0.00010 -0.00280 -0.00020
Na(3) 0.02270 0.02150 0.01790 0.00080 -0.00250 0.00010
Na(4) 0.03340 0.01560 0.01820 0.00120 0.00630 -0.00260
Na(5) 0.02850 0.01600 0.01850 -0.00290 -0.00410 -0.00430
Na(6) 0.01490 0.01840 0.03440 0.00370 -0.00660 -0.01130
Na(7) 0.01480 0.02220 0.02970 0.00420 -0.00630 -0.01000
Na(8) 0.04440 0.02380 0.02220 -0.00290 0.00430 -0.00290
Na(9) 0.03960 0.02220 0.02450 0.00360 -0.00280 -0.00240
Na(10) 0.02300 0.02440 0.01410 -0.00060 0.00320 0.00190
Na(11) 0.03760 0.01640 0.03250 0.00030 0.00640 0.00150
Na(12) 0.01820 0.01380 0.01650 0.00160 0.00360 0.00120
P(1) 0.01700 0.01060 0.01170 0.00050 0.00150 -0.00120
P(2) 0.01500 0.01470 0.01200 0.00130 0.00010 -0.00020
P(3) 0.01670 0.01100 0.01200 0.00100 0.00030 -0.00070
P(4) 0.01710 0.01260 0.01130 -0.00190 0.00100 -0.00010
Si(1) 0.01350 0.00870 0.01080 0.00030 0.00010 -0.00060
Si(2) 0.01290 0.00720 0.00920 0.00050 0.00020 -0.00070
Si(3) 0.01210 0.00890 0.00930 -0.00020 -0.00050 0.00040
Si(4) 0.01420 0.00870 0.00930 -0.00040 0.00050 0.00060
F(1) 0.01520 0.02240 0.02580 0.00100 0.00230 -0.00250
F(2) 0.01310 0.02290 0.02720 -0.00030 -0.00150 -0.00210
O(1) 0.02310 0.01450 0.01340 -0.00280 0.00180 -0.00360
O(2) 0.01930 0.01930 0.00940 0.00210 -0.00030 -0.00160
O(3) 0.02060 0.01220 0.01160 -0.00060 0.00270 0.00100
O(4) 0.01890 0.01610 0.01090 0.00140 0.00180 -0.00020
O(5) 0.01970 0.01170 0.01140 0.00080 0.00160 -0.00130
O(6) 0.01960 0.01340 0.00930 0.00080 0.00130 0.00230
O(7) 0.04210 0.01170 0.01870 0.00470 0.00250 0.00310
O(8) 0.01620 0.02300 0.01360 -0.00390 -0.00150 0.00060
O(9) 0.01850 0.02340 0.01120 -0.00200 0.00140 -0.00200
O(10) 0.02270 0.03350 0.01430 0.01610 0.00080 -0.00370
O(11) 0.02090 0.03050 0.01580 0.01540 0.00430 -0.00070
O(12) 0.01820 0.01600 0.00980 0.00040 -0.00220 0.00030
O(13) 0.02110 0.02510 0.01670 -0.01510 -0.00190 0.00200
O(14) 0.03000 0.03440 0.01160 -0.01550 0.00320 -0.00450
O(15) 0.04250 0.04570 0.02340 0.03100 -0.00510 -0.00490
O(16) 0.03060 0.02040 0.01530 0.00040 -0.00620 0.00210
O(17) 0.04470 0.04250 0.02700 -0.03000 0.01570 -0.00960
O(18) 0.03640 0.00900 0.01260 -0.00330 -0.00080 -0.00120
O(19) 0.03250 0.02830 0.03070 0.01060 0.00520 0.01200
O(20) 0.03470 0.02470 0.02740 -0.00470 0.00350 0.01240
O(21) 0.01780 0.02690 0.03890 -0.00030 0.00770 -0.00980
O(22) 0.03810 0.02190 0.01560 -0.00230 0.00630 -0.00090
O(23) 0.01580 0.03060 0.04160 -0.00300 -0.00030 -0.01150
O(24) 0.04810 0.03700 0.02170 0.01960 0.00000 -0.01410
O(25) 0.01730 0.02250 0.02840 0.00100 0.00080 0.00020
O(26) 0.03630 0.01970 0.01550 -0.00170 0.00900 0.00000
O(27) 0.01750 0.02400 0.02950 0.00150 0.00570 0.00190
O(28) 0.03350 0.02360 0.01370 0.00390 -0.00750 -0.00060
O(29) 0.04260 0.01300 0.01640 -0.00430 0.00200 -0.00170
O(30) 0.05130 0.03370 0.02680 -0.01930 0.00560 -0.01200
O(31) 0.02250 0.01200 0.01460 0.00250 -0.00050 -0.00180
O(32) 0.04100 0.00890 0.01420 0.00150 0.00250 0.00030
O(33) 0.05090 0.04700 0.02770 0.03710 -0.01350 -0.00750
O(34) 0.05460 0.05190 0.02930 -0.04300 0.01750 -0.01390

Epitaxial Relationships of QuadruphiteHide

Epitaxial Minerals:

'Lomonosovite'

Na₅Ti₂(Si₂O₇)(PO₄)O₂

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.880 Å	(100)
2.702 Å	(80b)
2.636 Å	(70)
2.050 Å	(50)
1.600 Å	(50)
1.662 Å	(40b)
1.713 Å	(30)

Locality:

Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

Reference:

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 QuadruphiteHide

Type Locality:

ⓘ Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia

General Appearance of Type Material:

Flakes on {001}, 1-2 mm thick and 3 mm across, grown epitaxially on lomonosovite and soboloveite.

Place of Conservation of Type Material:

A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, p545/5.
The Natural History Museum, London, England, 1994,25.

Geological Setting of Type Material:

Alkalic pegmatite.

Associated Minerals at Type Locality:

Reference:

Other Language Names for QuadruphiteHide

Dutch:Quadruphiet

German:Quadruphit

Russian:Квадруфит

Spanish:Quadruphita

Relationship of Quadruphite 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
Murmanite	Na₂Ti₂(Si₂O₇)O₂ · 2H₂O	Tric. 1 : P1
Paralomonosovite	Na₆◻₄Ti₄(Si₂O₇)₂[PO₃OH][PO₂(OH)₂]O₂(OF)	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

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.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.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

Fluorescence of QuadruphiteHide

In UV light:

Not fluorescent

Other InformationHide

Notes:

Dissolves easily in HCl.

Health Risks:

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

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References for QuadruphiteHide

Reference List:

Sokolova, E.V., Egorov-Tismenko, Y.K., Khomyakov, A.P. (1987) Special features of the crystal structure of Na14CaMgTi4[Si2O7]2[PO4]O4F2 homologue of sulphohalite and lomonosovite structure types. Mineralogiceskij Zhurnal: 9: 28-35.

Jambor, John L., Vanko, David A. (1993) New Mineral Names. American Mineralogist, 78 (11-12) 1314-1319

Mandarino, Joseph A. (1997) New Minerals 1990-1994. The Mineralogical Record Inc., Tuscon, Arizona. 220pp.

Sokolova, E., Hawthorne, F. C. (2001) The crystal chemistry of the [M3ϕ11–14] trimeric structures: from hyperagpaitic complexes to saline lakes. The Canadian Mineralogist, 39 (5). 1275-1294 doi:10.2113/gscanmin.39.5.1275

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

Sokolova, E., Hawthorne, F. C., Khomyakov, A. P. (2005) Polyphite and sobolevite: revision of their crystal structures. The Canadian Mineralogist, 43 (5) 1527-1544 doi:10.2113/gscanmin.43.5.1527

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

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

Localities for QuadruphiteHide

Showing 1 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.

Russia (TL)

Murmansk Oblast

Lovozersky District

ⓘ Alluaiv Mountain (TL)

Khomyakov et al. (1992) +2 other references

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Albite	Analcime	Arfvedsonite	'Belovite'	Eudialyte
K Feldspar	Kazakovite	Lamprophyllite	Lintisite	Lomonosovite
Loparite	Lorenzenite	Makatite	Nepheline	Neptunite
Parakeldyshite	Serandite	Sobolevite	Sodalite	Terskite
Ussingite	Villiaumite	Vuonnemite	Zirsinalite

Quadruphite

Unique IdentifiersHide

IMA Classification of QuadruphiteHide