Martinite
A valid IMA mineral species
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About Martinite
Formula:
(Na,â»,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.
Type Locality:
Isostructural with:
This page provides mineralogical data about Martinite.
Unique Identifiers
Mindat ID:
26345
Long-form identifier:
mindat:1:1:26345:6
GUID
(UUID V4):
(UUID V4):
1e5936c9-c8bd-4b6c-8dec-93197c3c5971
IMA Classification of Martinite
Classification of Martinite
9.EE.80
9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Mrt | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Martinite
Vitreous
Transparency:
Transparent
Colour:
Colorless, mauve, purple
Streak:
White
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {001}.
On {001}.
Fracture:
Irregular/Uneven
Comment:
Inelastic
Density:
2.51 g/cm3 (Calculated)
Optical Data of Martinite
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.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
None observed.
Optical Extinction:
X â c.
Pleochroism:
Non-pleochroic
Chemistry of Martinite
Mindat Formula:
(Na,â»,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2O
Crystallography of Martinite
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°
α = 108.943°, β = 74.154°, γ = 119.780°
Ratio:
a:b:c = 1.001 : 1 : 1.471
Unit Cell V:
1038.1 Ă
Âł
Z:
2
Morphology:
Triangular to roughly hexagonal plates dominated by {001}.
Crystal Structure
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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) |
---|---|---|---|---|---|---|---|
0006158 | Martinite | McDonald 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 1281-1292 | 2007 | Poudrette quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
13.18 Ă | (100) |
6.58 Ă | (43) |
2.968 Ă | (37) |
3.29 Ă | (34) |
2.908 Ă | (27) |
3.02 Ă | (17) |
2.800 Ă | (17) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
22 : Hydration and low-đ subsurface aqueous alteration (see also #23) | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Martinite
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 Martinite
Relationship of Martinite to other Species
Common Associates
Associated Minerals Based on Photo Data:
17 photos of Martinite associated with Erdite | NaFeS2 · 2H2O |
7 photos of Martinite associated with Hackmanite | Na8Al6Si6O24(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]Î4X(1)X(2) |
1 photo of Martinite associated with Lecoqite-(Y) | Na3Y(CO3)3 · 6H2O |
1 photo of Martinite associated with Shortite | Na2Ca2(CO3)3 |
1 photo of Martinite associated with Schairerite | Na21(SO4)7ClF6 |
Related Minerals - Strunz-mindat Grouping
9.EE. | Cairncrossite | Sr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-x |
9.EE.05 | Bementite | Mn7Si6O15(OH)8 |
9.EE.07 | Innsbruckite | Mn33(Si2O5)14(OH)38 |
9.EE.10 | Brokenhillite | Mn8Si6O15(OH)10 |
9.EE.10 | Pyrosmalite-(Fe) | Fe2+8Si6O15(OH,Cl)10 |
9.EE.10 | Friedelite | Mn2+8Si6O15(OH,Cl)10 |
9.EE.10 | Pyrosmalite-(Mn) | Mn2+8Si6O15(OH,Cl)10 |
9.EE.10 | Mcgillite | (Mn,Fe)8Si6O15(OH)8Cl2 |
9.EE.15 | Nelenite | (Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3] |
9.EE.15 | Schallerite | Mn2+16As3Si12O36(OH)17 |
9.EE.20 | Palygorskite | (Mg,Al)2Si4O10(OH) · 4H2O |
9.EE.20 | Tuperssuatsiaite | Na2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2O |
9.EE.20 | Yofortierite | Mn5Si8O20(OH)2 · 8-9H2O |
9.EE.20 | Windhoekite | Ca2Fe3+2.67[Si8O20](OH)4 · 10H2O |
9.EE.20 | Unnamed (Na-Ca-Fe-Silicate-Hydrate) | NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7 · 5H2O |
9.EE.20 | Windmountainite | â»Fe3+2Mg2Si8O20(OH)2 · 8H2O |
9.EE.25 | Falcondoite | (Ni,Mg)4Si6O15(OH)2 · 6H2O |
9.EE.25 | Loughlinite | Na2Mg3Si6O16 · 8H2O |
9.EE.25 | Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
9.EE.25 | Kalifersite | (K,Na)5Fe3+7Si20O50(OH)6 · 12H2O |
9.EE.30 | Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
9.EE.30 | Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
9.EE.30 | Tungusite | Ca4Fe2Si6O15(OH)6 |
9.EE.35 | Reyerite | (Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O |
9.EE.35 | Truscottite | (Ca,Mn)14Si24O58(OH)8 · 2H2O |
9.EE.35 | Kodamaite | Na3(Ca5Na)Si16O36(OH)4F2 · (14-x)H2O |
9.EE.40 | Natrosilite | Na2Si2O5 |
9.EE.45 | Makatite | Na2Si4O8(OH)2 · 4H2O |
9.EE.50 | Varennesite | Na8Mn2Si10O25(OH,Cl)2 · 12H2O |
9.EE.55 | Raite | Na4Mn2+3Ti0.25Si8O20(OH)2 · 10H2O |
9.EE.60 | Intersilite | Na6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2O |
9.EE.65 | Shafranovskite | Na3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O |
9.EE.65 | Zakharovite | Na4Mn5Si10O24(OH)6 · 6H2O |
9.EE.70 | Zeophyllite | Ca13Si10O28(OH)2F8 · 6H2O |
9.EE.75 | Minehillite | (K,Na)2-3Ca28Zn4Al4Si40O112(OH)16 |
9.EE.80 | Fedorite | (Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O |
9.EE.80 | Ellingsenite | Na5Ca6Si18O38(OH)13 · 6H2O |
9.EE.85 | Lalondeite | (Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2O |
Fluorescence of Martinite
Not fluorescent.
Other Information
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 Martinite
mindat.org URL:
https://www.mindat.org/min-26345.html
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References for Martinite
Reference List:
Localities for Martinite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
All localities listed without proper references should be considered as questionable.
Canada (TL) | |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada