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Martinite

A valid IMA mineral species
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About MartiniteHide

09718850015501551785703.jpg
Professor Robert Martin
Formula:
(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2O
Colour:
Colorless, mauve, purple
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
2.51 (Calculated)
Crystal System:
Triclinic
Member of:
Name:
In honour of Robert François Martin (b. 1941), Professor of Geology at McGill University, Montreal, Canada and long-time editor of The Canadian Mineralogist.
Isostructural with:
This page provides mineralogical data about Martinite.


Unique IdentifiersHide

Mindat ID:
26345
Long-form identifier:
mindat:1:1:26345:6
GUID
(UUID V4):
1e5936c9-c8bd-4b6c-8dec-93197c3c5971

IMA Classification of MartiniteHide

Approved
Approval year:
2001
First published:
2007

Classification of MartiniteHide

9.EE.80

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands

Mineral SymbolsHide

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

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

Physical Properties of MartiniteHide

Vitreous
Transparency:
Transparent
Colour:
Colorless, mauve, purple
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
On {001}.
Fracture:
Irregular/Uneven
Comment:
Inelastic
Density:
2.51 g/cm3 (Calculated)

Optical Data of MartiniteHide

Type:
Biaxial (-)
RI values:
nα = 1.529(1) nβ = 1.549(1) nγ = 1.551(1)
2V:
Measured: 38° (1), Calculated: 35°
Max Birefringence:
δ = 0.022
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
None observed.
Optical Extinction:
X ≈ c.
Pleochroism:
Non-pleochroic

Chemistry of MartiniteHide

Mindat Formula:
(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2O

Crystallography of MartiniteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 9.5437 Å, b = 9.5349 Å, c = 14.0268 Å
α = 108.943°, β = 74.154°, γ = 119.780°
Ratio:
a:b:c = 1.001 : 1 : 1.471
Unit Cell V:
1038.1 ų
Z:
2
Morphology:
Triangular to roughly hexagonal plates dominated by {001}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006158MartiniteMcDonald A M, Chao G Y (2007) Martinite, a new hydrated sodium calcium fluorborosilicate species from Mont Saint-Hilaire, Quebec: description, structure determination and genetic implications The Canadian Mineralogist 45 1281-12922007Poudrette quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
13.18 Å(100)
6.58 Å(43)
2.968 Å(37)
3.29 Å(34)
2.908 Å(27)
3.02 Å(17)
2.800 Å(17)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of MartiniteHide

General Appearance of Type Material:
Single crystals and as rosettes of triangular to roughly hexagonal plates varying from 50 ”m to a maximum of about 1 mm across. Individual crystals are typically <10 ”m in thickness.
Place of Conservation of Type Material:
Canadian Museum of Nature, Aylmer, Quebec, Canada, catalogue number CMNMC 83719.
Geological Setting of Type Material:
Formed through the interaction of highly fractionated, hyperagpaitic fluids with sodalite syenite xenoliths.
Associated Minerals at Type Locality:

Synonyms of MartiniteHide

Relationship of Martinite to other SpeciesHide

Member of:
Other Members of this group:
Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
17 photos of Martinite associated with ErditeNaFeS2 · 2H2O
7 photos of Martinite associated with HackmaniteNa8Al6Si6O24(Cl2,S)
1 photo of Martinite associated with Eudialyte Group[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
1 photo of Martinite associated with Lecoqite-(Y)Na3Y(CO3)3 · 6H2O
1 photo of Martinite associated with ShortiteNa2Ca2(CO3)3
1 photo of Martinite associated with SchaireriteNa21(SO4)7ClF6

Related Minerals - Strunz-mindat GroupingHide

9.EE.CairncrossiteSr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-xTric. 1 : P1
9.EE.05BementiteMn7Si6O15(OH)8Mon.
9.EE.07InnsbruckiteMn33(Si2O5)14(OH)38Mon. m : Bm
9.EE.10BrokenhilliteMn8Si6O15(OH)10Hex. 6mm : P63mc
9.EE.10Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
9.EE.10Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15Nelenite(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]Trig. 3m (3 2/m) : R3m
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite(Mg,Al)2Si4O10(OH) · 4H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteNa2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
9.EE.20Unnamed (Na-Ca-Fe-Silicate-Hydrate)NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7 · 5H2OTric. 1 : P1
9.EE.20Windmountainite◻Fe3+2Mg2Si8O20(OH)2 · 8H2OMon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth. mmm (2/m 2/m 2/m)
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.EE.25Kalifersite(K,Na)5Fe3+7Si20O50(OH)6 · 12H2OTric. 1 : P1
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric. 1 : P1
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.30TungusiteCa4Fe2Si6O15(OH)6Tric. 1 : P1
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig. 3 : P3
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.35KodamaiteNa3(Ca5Na)Si16O36(OH)4F2 · (14-x)H2O Tric. 1 : P1
9.EE.40NatrosiliteNa2Si2O5Mon. 2/m : P21/b
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
9.EE.55RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2OTrig. 3m : P3 1c
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig. 3m
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
9.EE.80EllingseniteNa5Ca6Si18O38(OH)13 · 6H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2OTric. 1 : P1

Fluorescence of MartiniteHide

Not fluorescent.

Other InformationHide

IR Spectrum:
Principal absorption bands in the infrared spectrum include 3437, 1634 and 1011 cm-1 (shoulders at 1137, 1081, 898 and 862 cm-1) and five bands in the region 786-498 cm-1.
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 MartiniteHide

References for MartiniteHide

Reference List:

Localities for MartiniteHide

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.

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.
Canada (TL)
 
  • QuĂ©bec
    • MontĂ©rĂ©gie
      • La VallĂ©e-du-Richelieu RCM
        • Mont Saint-Hilaire
 
Mineral and/or Locality  
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