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⇱ Janhaugite: Mineral information, data and localities.

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Janhaugite

A valid IMA mineral species
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About JanhaugiteHide

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Formula:
(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2
Colour:
Reddish brown, golden-brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.6
Crystal System:
Monoclinic
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.
Isostructural with:
This page provides mineralogical data about Janhaugite.


Unique IdentifiersHide

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Mindat ID:
2074
Long-form identifier:
mindat:1:1:2074:5

IMA Classification of JanhaugiteHide

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Approved
IMA Formula:
Na3Mn2+3Ti2(Si2O7)2(O,OH,F)4
First published:
1983

Classification of JanhaugiteHide

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9.BE.17

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
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
14.9.37

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
JhgIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of JanhaugiteHide

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Vitreous
Transparency:
Transparent
Colour:
Reddish brown, golden-brown
Streak:
Light brown
Hardness:
Tenacity:
Very brittle
Cleavage:
Distinct/Good
On(010)
Density:
3.6 g/cm3 (Measured)    3.71 g/cm3 (Calculated)

Optical Data of JanhaugiteHide

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Type:
Biaxial (+)
RI values:
nα = 1.77 nβ = 1.828 nγ = 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.

Surface Relief:
Moderate
Dispersion:
r > v distinct
Pleochroism:
Weak
Comments:
X = nearly colourless
Y = beige

Chemistry of JanhaugiteHide

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Mindat Formula:
(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2
Element Weights:
Element% weight
O39.350 %
Mn22.520 %
Si15.350 %
Ti13.081 %
Na9.424 %
H0.275 %

Calculated from ideal end-member formula.
Common Impurities:
Ca,Fe,Zr,Nb,Ta,K,H2O

Crystallography of JanhaugiteHide

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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 ų (Calculated from Unit Cell)
Z:
4
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
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014794JanhaugiteAnnehed H, Falth L, Raade G (1985) The crystal structure of janhaugite, a sorosilicate of the cuspidine family Neues Jahrbuch fur Mineralogie, Monatshefte 1985 7-1819850293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
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)
Comments:
Gjerdingen, Norway.

Geological EnvironmentHide

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

Type Occurrence of JanhaugiteHide

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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:

Synonyms of JanhaugiteHide

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Other Language Names for JanhaugiteHide

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German:Janhaugit
Simplified Chinese:硅钛锰钠石
Spanish:Janhaugita
Traditional Chinese:矽鈦錳鈉石

Relationship of Janhaugite to other SpeciesHide

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Other Members of Wöhlerite Group:
BaghdaditeCa6Zr2(Si2O7)2O4Mon. 2/m : P21/b
BurpaliteNa2CaZr(Si2O7)F2Mon. 2/m : P21/b
CuspidineCa8(Si2O7)2F4Mon. 2/m : P21/b
HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3Tric. 1 : P1
LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2Mon. 2/m : P21/b
MadeiraiteNa2Ca2Fe2Zr2(Si2O7)2O2F2Mon. 2/m : P21/b
MoxuanxueiteNaCa6Zr(Si2O7)2OF3Tric. 1 : P1
Niocalite(Ca,Nb)4(Si2O7)(O,OH,F)2Mon. m
NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OFMon. 2/m : P21/b
PilanesbergiteNa2Ca2Fe2Ti2(Si2O7)2O2F2Mon. 2/m : P21/b
WöhleriteNa2Ca4ZrNb(Si2O7)2O3FMon. 2 : P21

Common AssociatesHide

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Associated Minerals Based on Photo Data:
6 photos of Janhaugite associated with ElpiditeNa2ZrSi6O15 · 3H2O
3 photos of Janhaugite associated with QuartzSiO2
3 photos of Janhaugite associated with AegirineNaFe3+Si2O6
2 photos of Janhaugite associated with AnataseTiO2
2 photos of Janhaugite associated with DalyiteK2ZrSi6O15
1 photo of Janhaugite associated with 'Ekerite'
1 photo of Janhaugite associated with Feldspar Group

Related Minerals - Strunz-mindat GroupingHide

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9.BE.ZinkgruvaniteBa4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2Tric. 1 : P1
9.BE.Calciomurmanite(Na,◻)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4Tric. 1 : P1
9.BE.CámaraiteBa3Na(Fe2+,Mn)8Ti4(Si2O7)4O4(OH,F)7Tric. 1
9.BE.AlfredcaspariteSr2TiO(Si2O7)Tet. 4mm : P4bm
9.BE.Batievaite-(Y)Y2Ca2Ti(Si2O7)2(OH)2(H2O)4Tric. 1 : P1
9.BE.Nacareniobsite-(Y)Na3Ca3YNb(Si2O7)2OF3Mon. 2/m : P21/b
9.BE.Alexkuznetsovite-(Ce)Ce2Mn(CO3)(Si2O7)Mon. 2/m : P21/b
9.BE.BobshannoniteNa2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2Tric.
9.BE.ParalomonosoviteNa6◻4Ti4(Si2O7)2[PO3OH][PO2(OH)2]O2(OF)Tric. 1 : P1
9.BE.MadeiraiteNa2Ca2Fe2Zr2(Si2O7)2O2F2Mon. 2/m : P21/b
9.BE.BortolaniteCa2(Ca1.5Zr0.5)Na(NaCa)Ti(Si2O7)2(OF)F2Tric. 1 : P1
9.BE.MoxuanxueiteNaCa6Zr(Si2O7)2OF3Tric. 1 : P1
9.BE.Delhuyarite-(Ce)Ce4Mg(Fe3+,W)3◻(Si2O7)2O6(OH)2Mon. 2/m : B2/m
9.BE.Christofschäferite-(Ce)Ce3CaMnTiFe3+Ti2(Si2O7)2O8 Mon. 2/m : P21/m
9.BE.XAsimowiteFe2+4O(Si2O7)Orth. mmm(2/m2/m2/m) : Imma
9.BE.Biraite-(La)La2Fe2+(CO3)(Si2O7)Mon. 2/m : P21/b
9.BE.PilanesbergiteNa2Ca2Fe2Ti2(Si2O7)2O2F2Mon. 2/m : P21/b
9.BE.02WadsleyiteMg4O(Si2O7)Orth. mmm(2/m2/m2/m) : Imma
9.BE.02Ohtaniite Mg3(Si0.5◻0.5)Si2O8Orth. mmm(2/m2/m2/m) : Imma
9.BE.05LawsoniteCaAl2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.05HennomartiniteSrMn3+2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.05CortesognoiteCaV2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.05NoelbensoniteBaMn3+2(Si2O7)(OH)2 · H2OOrth. mm2
9.BE.05ItoigawaiteSrAl2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.07IlvaiteCaFe3+Fe2+2(Si2O7)O(OH)Orth. mmm(2/m2/m2/m)
9.BE.07Amamoorite CaMn2+2Mn3+(Si2O7)O(OH)Mon. 2/m : P21/b
9.BE.07ManganilvaiteCaFe2+Fe3+Mn2+(Si2O7)O(OH)Mon. 2/m : P21/b
9.BE.10SuoluniteCa2(H2Si2O7) · H2OOrth. mm2 : Fdd2
9.BE.12JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
9.BE.15FresnoiteBa2Ti(Si2O7)OTet. 4mm : P4bm
9.BE.17BurpaliteNa2CaZr(Si2O7)F2Mon. 2/m : P21/b
9.BE.17Niocalite(Ca,Nb)4(Si2O7)(O,OH,F)2Mon. m
9.BE.17NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OFMon. 2/m : P21/b
9.BE.17HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3Tric. 1 : P1
9.BE.17LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2Mon. 2/m : P21/b
9.BE.17CuspidineCa8(Si2O7)2F4Mon. 2/m : P21/b
9.BE.17WöhleriteNa2Ca4ZrNb(Si2O7)2O3FMon. 2 : P21
9.BE.17BaghdaditeCa6Zr2(Si2O7)2O4Mon. 2/m : P21/b
9.BE.20Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3Mon. 2/m : P21/b
9.BE.20Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3Mon. m : Bb
9.BE.20Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2Mon. 2/m : P21/b
9.BE.20Nacareniobsite-(Nd) Ca2(CaNd)Na3Nb(Si2O7)2(OF)F2Mon. 2/m : P21/b
9.BE.20Rinkite-(Y)Na2Ca4YTi(Si2O7)2OF3Mon. 2/m : P21/b
9.BE.20Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
9.BE.22Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1
9.BE.22GötzeniteNaCa6Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22Fogoite-(Y)Na3Ca2Y2Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22KochiteNa3Ca2MnZrTi(Si2O7)2OF3Tric. 1 : P1
9.BE.23DovyreniteCa6Zr(Si2O7)2(OH)4Orth. mmm(2/m2/m2/m) : Pnnm
9.BE.25Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2Mon. 2/m
9.BE.25SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2Mon. 2/m : P2/b
9.BE.25Nabalamprophyllite(BaNa)Ti2Na3Ti(Si2O7)2O2(OH)2Mon. 2/m : P2/m
9.BE.25SchülleriteBa2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4Tric. 1 : P1
9.BE.25EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m : B2/m
9.BE.25GrenmariteNa4MnZr3(Si2O7)2O2F2Mon. 2/m : P2/b
9.BE.25KazanskyiteBaNa3Ti2Nb(Si2O7)2O2(OH)2(H2O)4Tric. 1 : P1
9.BE.25SaamiteBa◻Na3Ti2Nb(Si2O7)2O2(OH)F(H2O)2Tric. 1 : P1
9.BE.25EmmerichiteBa2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25Barytolamprophyllite(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.25Fluorbarytolamprophyllite(Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2]Mon. 2/m : B2/m
9.BE.25FluorlamprophylliteNa3(SrNa)Ti3(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25LileyiteBa2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.27KolskyiteCaNa2Ti4(Si2O7)2O4(H2O)7Tric. 1 : P1
9.BE.27VigrishiniteNaZnTi4(Si2O7)2O3(OH)(H2O)4Tric. 1 : P1
9.BE.27SelivanovaiteNaFe3+Ti4(Si2O7)2O4(H2O)4Tric. 1 : P1
9.BE.27MurmaniteNa2Ti2(Si2O7)O2 · 2H2OTric. 1 : P1
9.BE.30Epistolite(Na◻)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4Tric. 1 : P1
9.BE.32LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric. 1 : P1
9.BE.35VuonnemiteNa11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH)Tric.
9.BE.37SoboleviteNa13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3Mon. m : Pb
9.BE.40Ferroinnelite Ba4Ti2Na(NaFe2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)]Tric. 1 : P1
9.BE.40PhosphoinneliteNa3Ba4Ti3(Si2O7)2(PO4,SO4)2O2FTric.
9.BE.40Innelite Ba4Ti2Na(NaMn2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)]Tric. 1 : P1
9.BE.42YoshimuraiteBa2Mn2Ti(Si2O7)(PO4)O(OH)Tric. 1 : P1
9.BE.42HoriiteBa2Mn2Mn4Ti2(Si2O7)2(PO4)2O2(OH)2Tric. 1 : P1
9.BE.45QuadruphiteNa6Na2(CaNa)2Na2Ti2Na2Ti2(Si2O7)2(PO4)4O4F2Tric. 1 : P1
9.BE.47PolyphiteNa5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2Tric. 1 : P1
9.BE.50Shkatulkalite Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3Tric. 1 : P1
9.BE.50BornemaniteNa6BaTi2Nb(Si2O7)2(PO4)O2(OH)FTric. 1 : P1
9.BE.55HejtmaniteBa2Mn2+4Ti2(Si2O7)2O2(OH)2F2Tric. 1
9.BE.55Bykovaite(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2OMon. 2/m
9.BE.55Nechelyustovite(Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2OMon. 2/m : B2/m
9.BE.55BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2Tric.
9.BE.60Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2OMon. 2/m : B2/m
9.BE.62'Orthochevkinite'(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22Orth.
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.65BusseniteNa2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3FTric. 1 : P1
9.BE.67JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FTric. 1 : P1
9.BE.67PerraultiteBaNaMn2+4Ti2(Si2O7)2O2(OH)2FTric. 1
9.BE.70Dingdaohengite-(Ce)(Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe3+)2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Karnasurtite-(Ce)(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2OAmor.
9.BE.70Maoniupingite-(Ce)(Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70MatsubaraiteSr4Ti5(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70RengeiteSr4ZrTi4(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Polyakovite-(Ce)(Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70Hezuolinite(Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70'UM2008-53-SiO:SrTiZr'Sr4ZrTi4(Si2O7)2O8Orth. mmm(2/m2/m2/m) : Pbca
9.BE.70Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2Mon. 2/m : P21/b
9.BE.70Perrierite-(La)(La,Ce,Ca)4(Fe2+,Mn)(Ti,Fe3+,Al)4[(Si2O7)O4]2Mon. 2/m : P21/b
9.BE.70Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.72FersmaniteCa4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3Tric.
9.BE.75BelkoviteBa3(Nb,Ti)6(Si2O7)2O12Hex. 6m2 : P62m
9.BE.77NasonitePb6Ca4(Si2O7)3Cl2Hex. 6/m : P63/m
9.BE.80MelanotekitePb2Fe3+2(Si2O7)O2Orth. 222 : C2221
9.BE.80KentrolitePb2Mn3+2(Si2O7)O2Orth. mmm(2/m2/m2/m) : Pbcm
9.BE.82Alexkuznetsovite-(La)La2Mn(CO3)(Si2O7)Mon. 2/m : P21/b
9.BE.82TilleyiteCa5(Si2O7)(CO3)2Mon. 2/m : P21/b
9.BE.85KillalaiteCa6.4(H0.6Si2O7)2(OH)2Mon. 2/m : P21/m
9.BE.87Stavelotite-(La)(La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30Trig. 3 : P31
9.BE.90Magnesiorowlandite-(Y)Y4(Mg,Fe)(Si2O7)2F2Tric. 1 : P1
9.BE.90Biraite-(Ce)Ce2Fe2+(Si2O7)(CO3)Mon. 2/m : P21/b
9.BE.92Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m
9.BE.92Chirvinskyite(Na,Ca)13(Fe,Mn,◻)2(Ti,Zr)5(Si2O7)4(OH,O)12 · 2H2OTric. 1 : P1
9.BE.95RusinoviteCa10(Si2O7)3Cl2 Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.95BatisiviteBaV3+8Ti6(Si2O7)O22Tric. 1 : P1
9.BE.97Schlüterite-(Y)(Y,REE)2AlSi2O7(OH)2FMon. 2/m : P21/b

Other InformationHide

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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 JanhaugiteHide

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mindat.org URL:
https://www.mindat.org/min-2074.html
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References for JanhaugiteHide

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Localities for JanhaugiteHide

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Showing 5 localities.

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

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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
Raade et al. (1983)
Russia
  • Murmansk Oblast
 ...
Spain
  • Canary Islands
    • Santa Cruz de Tenerife Province
      • Tenerife
Dill et al. (2023)
Dill et al. (2023)
Dill et al. (2023)
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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