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Janhaugite

A valid IMA mineral species

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Janhaugite, etc.

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite, etc.

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite, etc.

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite, etc.

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite, etc.

Gjerdingselva, Lunner, Akershus, Norway

Janhaugite

Gjerdingselva, Lunner, Akershus, Norway

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About JanhaugiteHide

Jan Haug

Formula:

(Na,Ca)₃(Mn²⁺,Fe²⁺)₃(Ti,Zr,Nb)₂(Si₂O₇)₂O₂(OH,F)₂

Colour:

Reddish brown, golden-brown

Lustre:

Vitreous

Hardness:

Specific Gravity:

3.6

Crystal System:

Monoclinic

Member of:

Wöhlerite Group

Name:

After Mr. Jan Haug (1934-1998), a Norwegian amateur mineralogist who participated in the systematic mineralogical investigation of the area in which the species was found.

Type Locality:

ⓘ Gjerdingselva, Lunner, Akershus, Norway

Isostructural with:

Wöhlerite Group

This page provides mineralogical data about Janhaugite.

Unique IdentifiersHide

Mindat ID:

2074

Long-form identifier:

mindat:1:1:2074:5

IMA Classification of JanhaugiteHide

IMA status:

Approved

IMA Formula:

Na₃Mn²⁺₃Ti⁴⁺₂(Si₂O₇)₂(O,OH,F)₄

Approval year:

1981

First published:

1983

Type description reference:

Raade, Gunnar, Mladeck, Micael H. (1983) Janhaugite, Na₃Mn₃Ti₂Si₄O₁₅(OH,F,O)₃, a new mineral from Norway. American Mineralogist, 68 (11-12) 1216-1219

Classification of JanhaugiteHide

Strunz-mindat (2026):

9.BE.17

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

Dana 8th ed.:

56.2.4.10

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.:

14.9.37

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

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
Jhg	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 JanhaugiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Reddish brown, golden-brown

Streak:

Light brown

Hardness:

5 on Mohs scale

Tenacity:

Very brittle

Cleavage:

Distinct/Good
On(010)

Density:

3.6 g/cm³ (Measured) 3.71 g/cm³ (Calculated)

Optical Data of JanhaugiteHide

Type:

Biaxial (+)

RI values:

n_α = 1.77 n_β = 1.828 n_γ = 1.91

2V:

Measured: 80° , Calculated: 84°

Max. Birefringence:

δ = 0.140
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 distinct

Pleochroism:

Weak

Comments:

X = nearly colourless
Y = beige

Chemistry of JanhaugiteHide

Mindat Formula:

(Na,Ca)₃(Mn²⁺,Fe²⁺)₃(Ti,Zr,Nb)₂(Si₂O₇)₂O₂(OH,F)₂

Element Weights:

Element	% weight
O	39.350 %
Mn	22.520 %
Si	15.350 %
Ti	13.081 %
Na	9.424 %
H	0.275 %

Calculated from ideal end-member formula.

Elements listed:

Ca, F, Fe, H, Mn, Na, Nb, O, Si, Ti, Zr - search for minerals with similar chemistry

Common Impurities:

Ca,Fe,Zr,Nb,Ta,K,H₂O

Crystallography of JanhaugiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/m

Cell Parameters:

a = 10.66 Å, b = 9.78 Å, c = 13.93 Å
β = 107.82°

Ratio:

a:b:c = 1.09 : 1 : 1.424

Unit Cell V:

1,382.59 Å³ (Calculated from Unit Cell)

Morphology:

Subhedral grains and lamellar aggregates and sprays of prismatic crystals in miarolitic cavities. Crystals often curved and bent. Striated along [001].

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)
0014794	Janhaugite	Annehed H, Falth L, Raade G (1985) The crystal structure of janhaugite, a sorosilicate of the cuspidine family Neues Jahrbuch fur Mineralogie, Monatshefte 1985 7-18		1985		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Janhaugite'
loop_
_publ_author_name
'Annehed H'
'Falth L'
'Raade G'
_journal_name_full 'Neues Jahrbuch fur Mineralogie, Monatshefte'
_journal_volume 1985 
_journal_year 1985
_journal_page_first 7
_journal_page_last 18
_publ_section_title
;
 The crystal structure of janhaugite, a sorosilicate of the cuspidine family
;
_database_code_amcsd 0014794
_chemical_formula_sum '(Na2.31 Ca.69) Mn3 (Ti1.4 Zr.6) Si4 O16 F2'
_cell_length_a 10.668
_cell_length_b 9.787
_cell_length_c 13.931
_cell_angle_alpha 90
_cell_angle_beta 107.82
_cell_angle_gamma 90
_cell_volume 1384.720
_exptl_crystal_density_diffrn      3.711
_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
Na1   0.92608   0.38034   0.91956   0.77000   0.01659
Ca1   0.92608   0.38034   0.91956   0.23000   0.01659
Na2   0.42284   0.12673   0.91966   0.61000   0.01520
Ca2   0.42284   0.12673   0.91966   0.39000   0.01520
Na3   0.29939   0.39244   0.01066   0.93000   0.01862
Ca3   0.29939   0.39244   0.01066   0.07000   0.01862
Mn1   0.43416   0.13044   0.17820   1.00000   0.01039
Mn2   0.93431   0.36718   0.17828   1.00000   0.00963
Mn3   0.80467   0.11387   0.01388   1.00000   0.00899
Ti1   0.28644   0.39150   0.26893   0.67000   0.00684
Zr1   0.28644   0.39150   0.26893   0.33000   0.00684
Ti2   0.78494   0.09995   0.25178   0.73000   0.00697
Zr2   0.78494   0.09995   0.25178   0.27000   0.00697
Si1   0.61418   0.33518   0.08361   1.00000   0.00633
Si2   0.61745   0.34379   0.85744   1.00000   0.00621
Si3   0.12030   0.16410   0.08415   1.00000   0.00608
Si4   0.12296   0.16929   0.85875   1.00000   0.00621
O1   0.48077   0.25581   0.07455   1.00000   0.01520
O2   0.63179   0.47969   0.14252   1.00000   0.01305
O3   0.74610   0.24110   0.13268   1.00000   0.00975
O4   0.61601   0.37785   0.97125   1.00000   0.01418
O5   0.47624   0.28062   0.79429   1.00000   0.01102
O6   0.65306   0.48707   0.81486   1.00000   0.01317
O7   0.74046   0.23781   0.87128   1.00000   0.01026
O8   0.97875   0.22744   0.07405   1.00000   0.01267
O9   0.13266   0.00057   0.10255   1.00000   0.01001
O10   0.24100   0.24030   0.16760   1.00000   0.01064
O11   0.15265   0.19609   0.97925   1.00000   0.01355
O12   0.97556   0.22119   0.80120   1.00000   0.01039
O13   0.15450   0.00877   0.84882   1.00000   0.01064
O14   0.23726   0.25860   0.83407   1.00000   0.01165
O15   0.62204   0.02055   0.22061   1.00000   0.01444
O16   0.37951   0.96893   0.26654   1.00000   0.01355
F1   0.61060   0.99709   0.44699   1.00000   0.01849
F2   0.38088   0.98353   0.04157   1.00000   0.01950

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.920 Å	(40)
3.202 Å	(60)
2.839 Å	(100)
2.833 Å	(90)
2.782 Å	(90)
2.742 Å	(40)
1.744 Å	(50)

Locality:

Gjerdingselva, Lunner, Akershus, Norway

Reference:

Raade, Gunnar, Mladeck, Micael H. (1983) Janhaugite, Na₃Mn₃Ti₂Si₄O₁₅(OH,F,O)₃, a new mineral from Norway. American Mineralogist, 68 (11-12) 1216-1219

Comments:

Gjerdingen, Norway.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4a: Earth’s earliest continental crust	>4.4-3.0
19 : Granitic intrusive rocks

Type Occurrence of JanhaugiteHide

Type Locality:

ⓘ Gjerdingselva, Lunner, Akershus, Norway

General Appearance of Type Material:

Subhedral grains in ekerite or as lamellar aggregates and sprays of prismatic crystals, up to 4mm long, in miarolitic cavities.

Place of Conservation of Type Material:

Mineralogical-Geological Museum, University of Oslo, Norway.

Geological Setting of Type Material:

As a rock-forming constituent of ekerite (a Na-rich alkali feldspar granite), and in miarolitic cavities.

Associated Minerals at Type Locality:

Aegirine	Dalyite	Elpidite	Kupletskite	Monazite Group
Pyrophanite

Reference:

Raade, Gunnar, Mladeck, Micael H. (1983) Janhaugite, Na₃Mn₃Ti₂Si₄O₁₅(OH,F,O)₃, a new mineral from Norway. American Mineralogist, 68 (11-12) 1216-1219

Synonyms of JanhaugiteHide

IMA1981-018

Other Language Names for JanhaugiteHide

Dutch:Janhaugiet

German:Janhaugit

Russian:Янхаугит

Simplified Chinese:硅钛锰钠石

Spanish:Janhaugita

Traditional Chinese:矽鈦錳鈉石

Relationship of Janhaugite to other SpeciesHide

Member of:

Wöhlerite Group

Other Members of Wöhlerite Group:

Baghdadite	Ca₆Zr₂(Si₂O₇)₂O₄	Mon. 2/m : P2₁/b
Burpalite	Na₂CaZr(Si₂O₇)F₂	Mon. 2/m : P2₁/b
Cuspidine	Ca₈(Si₂O₇)₂F₄	Mon. 2/m : P2₁/b
Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃	Tric. 1 : P1
Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂	Mon. 2/m : P2₁/b
Madeiraite	Na₂Ca₂Fe₂Zr₂(Si₂O₇)₂O₂F₂	Mon. 2/m : P2₁/b
Moxuanxueite	NaCa₆Zr(Si₂O₇)₂OF₃	Tric. 1 : P1
Niocalite	(Ca,Nb)₄(Si₂O₇)(O,OH,F)₂	Mon. m
Normandite	NaCa(Mn,Fe)(Ti,Nb,Zr)(Si₂O₇)OF	Mon. 2/m : P2₁/b
Pilanesbergite	Na₂Ca₂Fe₂Ti₂(Si₂O₇)₂O₂F₂	Mon. 2/m : P2₁/b
Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F	Mon. 2 : P2₁

Common AssociatesHide

Associations Based on Photo Data:

6 photos of Janhaugite associated with Elpidite	Na₂ZrSi₆O₁₅ · 3H₂O
4 photos of Janhaugite associated with Aegirine	NaFe³⁺Si₂O₆
3 photos of Janhaugite associated with Quartz	SiO₂
2 photos of Janhaugite associated with Anatase	TiO₂
2 photos of Janhaugite associated with Dalyite	K₂ZrSi₆O₁₅
1 photo of Janhaugite associated with 'Ekerite'
1 photo of Janhaugite associated with Feldspar Group

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	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.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

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References for JanhaugiteHide

Reference List:

Raade, Gunnar, Mladeck, Micael H. (1983) Janhaugite, Na₃Mn₃Ti₂Si₄O₁₅(OH,F,O)₃, a new mineral from Norway. American Mineralogist, 68 (11-12) 1216-1219

Annehed, H.; Fälth, L.; Raade, Gunnar (1985) The crystal structure of janhaugite, a sorosilicate of cuspidine family. Neues Jahrbuch für Mineralogie - Monatshefte, 1985. 7-18

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

Localities for JanhaugiteHide

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- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

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


Norway (TL)
Akershus Lunner ⓘ Gjerdingselva (TL)	Raade et al. (1983)

Russia
Murmansk Oblast ⓘ ~~Khibiny Massif~~	...

Spain
Canary Islands Santa Cruz de Tenerife Province Tenerife ⓘ ~~Los Humilladeros~~	Dill et al. (2023)
ⓘ ~~Playa de Enramada~~	Dill et al. (2023)
ⓘ ~~Playa de San Juan~~	Dill et al. (2023)

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Janhaugite

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