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Pilanesbergite

A valid IMA mineral species
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08678220017522616947841.jpg
Pilanesbergite, etc.

Poços de Caldas, Minas Gerais, Brazil
04992330017614068943518.jpg
Pilanesbergite, etc.

Poços de Caldas, Minas Gerais, Brazil
08678220017522616947841.jpg
Pilanesbergite, etc.

Poços de Caldas, Minas Gerais, Brazil
04992330017614068943518.jpg
Pilanesbergite, etc.

Poços de Caldas, Minas Gerais, Brazil
08678220017522616947841.jpg
Pilanesbergite, etc.

Poços de Caldas, Minas Gerais, Brazil
04992330017614068943518.jpg
Pilanesbergite, etc.

Poços de Caldas, Minas Gerais, Brazil
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About PilanesbergiteHide

The Ti analogue of madeiraite.

Unique combination of elements among the approved species (at the upload time); compare UM2004-51-SiO:CaClFFeHNaNbTi.

Relation to the isomorphic species (that are also chemically related): Mn2+ ↔ Fe2+ & Zr4+ ↔ Ti4+.

Genesis:
*relatively reducing conditions
*formed from an agpaitic nepheline syenite magma, evolved via fractional crystallization of (mainly) aegirine.
A further change of mineral composition from pilanesbergite towards normandite was due to crystallization of arfvedsonite that resulted ain an increase in f(O2) and thus Mn enrichment of the magma.


Unique IdentifiersHide

Mindat ID:
470780
Long-form identifier:
mindat:1:1:470780:2

IMA Classification of PilanesbergiteHide

IMA status:
Approved
IMA Formula:
Na2Ca2Fe2+2Ti4+2(Si2O7)2O2F2
Approval year:
2023
Approval history:
IMA no. 2023-007

Classification of PilanesbergiteHide

Strunz-mindat (2026):
9.BE.

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

Mineral SymbolsHide

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

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

Physical Properties of PilanesbergiteHide

Lustre:
Vitreous
Transparency:
Translucent
Colour:
Brown-orange
Streak:
Brownish
Hardness:
5 - 6 on Mohs scale
Comment:
by comparison with låvenite
Tenacity:
Brittle
Cleavage:
None Observed
Density:
3.47 g/cm3 (Measured)    3.40 g/cm3 (Calculated)

Optical Data of PilanesbergiteHide

Type:
Biaxial (+)
RI values:
nα = 1.743(3) nβ = 1.768(3) nγ = 1.795(5)
2V:
Measured: ~90° , Calculated: 88°
Max. Birefringence:
δ = 0.052
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.

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.
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.
Pleochroism:
Strong
Comments:
straw yellow to orange red, or - if oil immersion is used - light yellow (α) / yellowish orange (γ)

Chemistry of PilanesbergiteHide

Mindat Formula:
Na2Ca2Fe2Ti2(Si2O7)2O2F2
Element Weights:
Element% weight
O34.599 %
Si15.184 %
Fe15.096 %
Ti12.939 %
Ca10.834 %
Na6.214 %
F5.136 %

Calculated from ideal end-member formula.
O
Si
Fe
Ti
Ca
Na
F
Elements listed:
Ca, F, Fe, Na, O, Si, Ti - search for minerals with similar chemistry

Chemical AnalysisHide

Crystallography of PilanesbergiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/c
Setting:
P21/a
Cell Parameters:
a = 10.7811(2) Å, b = 9.7836(1) Å, c = 7.0348(1) Å
β = 108.072(2)°
Ratio:
a:b:c = 1.102 : 1 : 0.719
Unit Cell V:
705.41 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.928 Å(17)
3.219 Å(60)
2.851 Å(100)
2.802 Å(51)
2.743 Å(27)
2.423 Å(19)
2.366 Å(18)
1.723 Å(19)
Locality:
Pilanesbergite type locality, Ledig village area, Pilanesberg Alkaline Ring Complex, Moses Kotane Local Municipality, Bojanala Platinum District Municipality, North West, South Africa

Type Occurrence of PilanesbergiteHide

Type Locality:
ⓘ Pilanesbergite type locality, Ledig village area, Pilanesberg Alkaline Ring Complex, Moses Kotane Local Municipality, Bojanala Platinum District Municipality, North West, South Africa
General Appearance of Type Material:
partly intergrown, with aegirine
Place of Conservation of Type Material:
collections of (1) NHM Økern, Natural History Museum, University of Oslo, Kabelgata 38–40, 0580 Oslo, Norway, catalogue number KNR 44406, and (2) the Laboratoire de Minéralogie et de Cristallochimie, Université de Liège, Bâtiment B18, Sart Tilman, 4000 Liège, Belgium, catalogue number 21980
Geological Setting of Type Material:
green foyaite. Type material has been sampled from a natural exposure in a river gulley near the southern margin of the complex at 25.3463∘ S, 27.0658∘ E.
Associated Minerals at Type Locality:
AegirineNephelineSodaliteTitanite

Synonyms of PilanesbergiteHide

Other Language Names for PilanesbergiteHide

Relationship of Pilanesbergite to other SpeciesHide

Member of:
Wöhlerite Group
Other Members of Wöhlerite Group:
BaghdaditeCa6Zr2(Si2O7)2O4Mon. 2/m : P21/c
BurpaliteNa2CaZr(Si2O7)F2Mon. 2/m : P21/c
CuspidineCa8(Si2O7)2F4Mon. 2/m : P21/c
HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3Tric. 1 : P1
Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2Mon. 2/m : P21/c
MadeiraiteNa2Ca2Fe2Zr2(Si2O7)2O2F2Mon. 2/m : P21/c
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/c
WöhleriteNa2Ca4ZrNb(Si2O7)2O3FMon. 2 : P21

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Pilanesbergite associated with AegirineNaFe3+Si2O6
1 photo of Pilanesbergite associated with EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2

Related Minerals - Strunz-mindat GroupingHide

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/c
9.BE.Alexkuznetsovite-(Ce)Ce2Mn(CO3)(Si2O7)Mon. 2/m : P21/c
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/c
9.BE.BortolaniteCa2(Ca1.5Zr0.5)Na(NaCa)Ti(Si2O7)2(OF)F2Tric. 1 : P1
9.BE.Longshoushanite-(Ce)Ce4MgAl2Ti2(Si2O7)2O8Mon. 2/m : P21/c
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/c
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/c
9.BE.07ManganilvaiteCaFe2+Fe3+Mn2+(Si2O7)O(OH)Mon. 2/m : P21/c
9.BE.10SuoluniteCa2(H2Si2O7) · H2OOrth. mm2 : Fdd2
9.BE.12JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
9.BE.15FresnoiteBa2Ti(Si2O7)OTet. 4mm : P4bm
9.BE.17Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
9.BE.17BurpaliteNa2CaZr(Si2O7)F2Mon. 2/m : P21/c
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/c
9.BE.17HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3Tric. 1 : P1
9.BE.17LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2Mon. 2/m : P21/c
9.BE.17CuspidineCa8(Si2O7)2F4Mon. 2/m : P21/c
9.BE.17WöhleriteNa2Ca4ZrNb(Si2O7)2O3FMon. 2 : P21
9.BE.17BaghdaditeCa6Zr2(Si2O7)2O4Mon. 2/m : P21/c
9.BE.20Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3Mon. 2/m : P21/c
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/c
9.BE.20Nacareniobsite-(Nd) Ca2(CaNd)Na3Nb(Si2O7)2(OF)F2Mon. 2/m : P21/c
9.BE.20Rinkite-(Y)Na2Ca4YTi(Si2O7)2OF3Mon. 2/m : P21/c
9.BE.20Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/c
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/c
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.40InneliteBa4Ti2Na(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/c
9.BE.70Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8Mon. 2/m : P21/c
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/c
9.BE.70RengeiteSr4ZrTi4(Si2O7)2O8Mon. 2/m : P21/c
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/c
9.BE.70Perrierite-(La)(La,Ce,Ca)4(Fe2+,Mn)(Ti,Fe3+,Al)4[(Si2O7)O4]2Mon. 2/m : P21/c
9.BE.70Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon. 2/m : P21/c
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/c
9.BE.82TilleyiteCa5(Si2O7)(CO3)2Mon. 2/m : P21/c
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/c
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/c

Other InformationHide

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 PilanesbergiteHide

References for PilanesbergiteHide

Localities for PilanesbergiteHide

Showing 2 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
former sample from Roberto Bracco
South Africa (TL)
 
  • North West
    • Bojanala Platinum District Municipality
      • Moses Kotane Local Municipality
        • Pilanesberg Alkaline Ring Complex
          • Ledig village area
Bosi et al. (2023) +1 other reference
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