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Martinandresite

A valid IMA mineral species
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06230980017272013957122.jpg
Martinandresite

Isenwegg, Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
03362380017272473014411.jpg
Martinandresite

Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
06230980017272013957122.jpg
Martinandresite

Isenwegg, Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
03362380017272473014411.jpg
Martinandresite

Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
06230980017272013957122.jpg
Martinandresite

Isenwegg, Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
03362380017272473014411.jpg
Martinandresite

Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
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About MartinandresiteHide

05805020017272473024575.jpg
Martin Andres
Formula:
Ba2(Al4Si12O32) · 10H2O
Chemical-analytical data of type material is close to that of the end-member composition.
Colour:
Tan, white
Lustre:
Vitreous
Hardness:
4½
Specific Gravity:
2.482
Crystal System:
Orthorhombic
Member of:
Zeolite Group
Name:
Named in honor of Martin Andres (b. 1965), from Glis, Switzerland. He discovered the famous armenite locality of Wasenalp; the type locality of this mineral.
Chemically related to harmotome.


Unique IdentifiersHide

Mindat ID:
51985
Long-form identifier:
mindat:1:1:51985:0

IMA Classification of MartinandresiteHide

Classification of MartinandresiteHide

Strunz-mindat (2026):
9.GC.10

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
C : Chains of doubly-connected 4-membered rings

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

Physical Properties of MartinandresiteHide

Lustre:
Vitreous
Transparency:
Transparent, Translucent
Colour:
Tan, white
Comment:
light green due to microscopic chlorite inclusions
Hardness:
4½ on Mohs scale
Cleavage:
Poor/Indistinct
Presumably on (010) and in a direction across (010).
Parting:
none
Density:
2.482(5) g/cm3 (Measured)    2.495 g/cm3 (Calculated)
Comment:
Measured by floatation in heavy liquids

Optical Data of MartinandresiteHide

Type:
Biaxial (-)
RI values:
nα = 1.500(2) nβ = 1.512(2) nγ = 1.515(2)
2V:
Measured: 55° (10), Calculated: 53°
Max. Birefringence:
δ = 0.015
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:
Moderate
Dispersion:
r < ν, weak
Pleochroism:
Non-pleochroic

Chemistry of MartinandresiteHide

Mindat Formula:
Ba2(Al4Si12O32) · 10H2O

Chemical-analytical data of type material is close to that of the end-member composition.
Element Weights:
Element% weight
O47.599 %
Si23.873 %
Ba19.455 %
Al7.645 %
H1.428 %

Calculated from ideal end-member formula.
Elements listed:
Al, Ba, H, O, Si - search for minerals with similar chemistry

Crystallography of MartinandresiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pmmn
Setting:
Pmmn
Cell Parameters:
a = 9.4640(4) Å, b = 14.2288(6) Å, c = 6.9940(4) Å
Ratio:
a:b:c = 0.665 : 1 : 0.492
Unit Cell V:
941.82 ų
Z:
1
Morphology:
Blocky. Major form is {010}; the subordinate forms are {100} and {001}.
Twinning:
Cruciform twins

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of MartinandresiteHide

Type Locality:
ⓘ Isenwegg, Wasen Alp, Ganter valley, Ried-Brig, Brig, Valais, Switzerland
General Appearance of Type Material:
Tan-coloured blocky crystals up to 8 mm, aggregates up to 6 cm across, and cruciform twins up to 3.5 mm.
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Geological Museum of Lausanne, Switzerland, catalogue number is MGL 093284
Empirical Formula of Type Material:
Na0.17K0.04Ba2.00(Al4.19Si11.81O32)H19.85O9.93
Chemical Analysis of Type Material:
Na2O0.37 %
K2O0.12 %
BaO21.55 %
Al2O315.03 %
SiO249.86 %
H2O12.57 %
Total:99.5 %
Associated Minerals at Type Locality:
ArmeniteChlorite GroupDickiteQuartz
Reference:
Chukanov, Nikita V., Zubkova, Natalia V., Meisser, Nicolas, Ansermet, Stefan, Weiss, Stefan, Pekov, Igor V., Belakovskiy, Dmitriy I., Vozchikova, Svetlana A., Britvin, Sergey N., Pushcharovsky, Dmitry Yu. (2018) Martinandresite, Ba2(Al4Si12O32)·10H2O, a new zeolite from Wasenalp, Switzerland. Physics and Chemistry of Minerals, 45 (6) 511-521 doi:10.1007/s00269-017-0938-6

Synonyms of MartinandresiteHide

Other Language Names for MartinandresiteHide

Relationship of Martinandresite to other SpeciesHide

Member of:
Zeolite Group
Other Members of Zeolite Group:
AlflarseniteNaCa2Be3Si4O13(OH) · 2H2OMon. 2 : P21
AmiciteK2Na2Al4Si4O16 · 5H2OMon. 2
Ammonioleucite(NH4)(AlSi2O6)Tet. 4/m : I41/a
AnalcimeNa(AlSi2O6) · H2OTric. 1 : P1
ArzamastseviteK6Al5Si6O20(OH)4ClTet. 42m : I42m
Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2OHex.
BikitaiteLiAlSi2O6 · H2OTric. 1 : P1
BoggsiteCa8Na3(Si,Al)96O192 · 70H2OOrth. mmm(2/m2/m2/m) : Imma
Brewsterite SubgroupZeolite Group.
Chabazite-Levyne SubgroupM[Al2Si4O12] · 6H2O
ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2OMon. 2/m : P21/b
Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
CowlesiteCaAl2Si3O10 · 6H2OOrth. mmm(2/m2/m2/m)
Dachiardite SubgroupZeolite Group.
DirenzoiteNaK6MgCa2(Al13Si47O120) · 36H2OOrth. mmm(2/m2/m2/m) : Pmmn
EdingtoniteBa[Al2Si3O10] · 4H2OOrth. 222 : P212121
EpistilbiteCaAl2Si6O16 · 5H2OMon.
Erionite SubgroupM2[Al4Si14O36] · 15H2O
FabrièsiteNa3Al3Si3O12 · 2H2OOrth. mm2 : Pmm2
Faujasite SubgroupM3.5[Al7Si17O48] · 32H2O
Ferrierite SubgroupName used for unanalysed specimens that could be either ferrierite-K, ferrierite-Mg, ...
FerrochiavenniteCa1-2Fe[(Si,Al,Be)5Be2O13(OH)2] · 2H2OMon. 2/m : P21/b
Flörkeite(K3Ca2Na)[Al8Si8O32] · 12H2OTric. 1 : P1
Garronite Subgroup
GaultiteNa4Zn2Si7O18 · 5H2OOrth. mm2 : Fdd2
Gismondine SubgroupZeolite Group.
Gmelinite SubgroupIn 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K.
GobbinsiteNa5(Si11Al5)O32 · 11H2OOrth. mmm(2/m2/m2/m) : Pnma
GoosecreekiteCa[Al2Si6O16] · 5H2OMon. 2 : P21
GottardiiteNa3Mg3Ca5Al19Si117O272 · 93H2OOrth. mmm(2/m2/m2/m) : Cmca
Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
HsianghualiteCa3Li2(Be3Si3O12)F2Iso. 23 : I213
KalborsiteK6Al4BSi6O20(OH)4ClTet. 42m : P421c
KirchhoffiteCs(BSi2O6)Tet. 4/mmm(4/m2/m2/m) : I41/acd
LaumontiteCaAl2Si4O12 · 4H2OMon. 2/m : B2/m
LeuciteK(AlSi2O6)Tet. 4/m : I41/a
LimousiniteBaCa[Be4P4O16] · 6H2OMon. 2/m : P21/b
LithositeK6Al4Si8O25 · 2H2OMon.
Loomisite Ba[Be2P2O8] · H2OMon. m
LovdariteK2Na6Be4Si14O36 · 9H2OOrth. mm2
MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
Mazzite SubgroupZeolite Group.
MeieriteBa44Si66Al30O192Cl25(OH)33Iso. m3m(4/m32/m) : Im3m
MerlinoiteK5Ca2(Si23Al9)O64 · 24H2OOrth. mmm(2/m2/m2/m) : Immm
Montesommaite(K,Na)9Al9Si23O64 · 10H2OOrth. mm2 : Fdd2
Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2OOrth.
MountainiteKNa2Ca2[Si8O19(OH)] · 6H2OMon. 2/m : P2/b
MutinaiteNa3Ca4Si85Al11O192 · 60H2OOrth. mmm(2/m2/m2/m) : Pnma
NabesiteNa2BeSi4O10 · 4H2OOrth. 222 : P212121
Natrolite SubgroupA subgroup of the Zeolite Group.
OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6m2 : P6m2
PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2OIso. 23 : I23
ParthéiteCa2(Si4Al4) O15 (OH)2 · 4H2OMon. 2/m : B2/b
Paulingite SubgroupPaulingite was originally described in 1960.
PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2OHex. 6/mmm(6/m2/m2/m) : P6/mmm
Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Pollucite(Cs,Na)2(Al2Si4O12) · 2H2OIso. m3m(4/m32/m) : Ia3d
RoggianiteCa2Be(OH)2Al2Si4O13 · 2.5H2OTet. 4/mmm(4/m2/m2/m) : I4/mcm
RongibbsitePb2(Si4Al)O11(OH) Mon. 2/m : B2/m
Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Terranovaite(Na,Ca)8(Si68Al12)O160 · 29H2OOrth.
Thomsonite SubgroupThe large majority of "thomsonite" is thomsonite-Ca.
ThornasiteNa12Th4+3(Si8O19)4 · 18H2OTrig. 3m : R3m
Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2OTet. 4/mmm(4/m2/m2/m) : P4/mmm
TschörtneriteCa4(Ca,Sr,K,Ba)3Cu3[Al3Si3O12]4(OH)8 · nH2OIso. m3m(4/m32/m) : Fm3m
'UM1996-38-SiO:AlCaHNa'Na-Ca-Al-Si-O-H
'UM1999-33-SiO:AlHKNa'K7Na5Al12Si20O64 · 24H2O
'UM2002-40-SiO:AlCaHKMgNa'(Mg,Ca,Na,K)7.5(Al12.8Si51.2)O128 · 65H2OTet. 422 : P4122
'Unnamed (Ca analogue of Merlinoite)'(Ca,K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O ?
WairakiteCa(Al2Si4O12) · 2H2OMon. 2/m : B2/m
WeinebeneiteCaBe3(PO4)2(OH)2 · 4H2OMon. m : Bb
Wenkite(Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2OHex. 6m2 : P62m
Wilancookite(Ba5Li2◻)Ba6Be24P24O96 · 26H2OIso. 23 : I23
WillhendersoniteKCa[Al3Si3O12] · 5H2OTric. 1 : P1
YugawaraliteCaAl2Si6O16 · 4H2OMon. m : Pb

Related Minerals - Strunz-mindat GroupingHide

9.GC.Gismondine-SrSr4(Si8Al8O32) · 9H2OOrth. 222 : C2221
9.GC.Garronite-NaNa6(Al6Si10O32) · 8.5H2OMon. 2
9.GC.05'Gismondine-Ba'Ba2Al4Si4O16 · 4-6H2O
9.GC.05Garronite-CaNa2Ca5Al12Si20O64 · 27H2OTet. 42m : I4m2
9.GC.05Gismondine-CaCaAl2Si2O8 · 4H2OMon. 2/m : P21/b
9.GC.05GobbinsiteNa5(Si11Al5)O32 · 11H2OOrth. mmm(2/m2/m2/m) : Pnma
9.GC.05AmiciteK2Na2Al4Si4O16 · 5H2OMon. 2
9.GC.10HarmotomeBa2(Si12Al4)O32 · 12H2OMon. 2/m : P21/m
9.GC.10Phillipsite-CaCa3(Si10Al6)O32 · 12H2OMon. 2/m : P21/m
9.GC.10Phillipsite-KK6(Si10Al6)O32 · 12H2OMon. 2/m : P21/m
9.GC.10Phillipsite-Na(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2OMon. 2/m : P21/m
9.GC.10Flörkeite(K3Ca2Na)[Al8Si8O32] · 12H2OTric. 1 : P1
9.GC.15MerlinoiteK5Ca2(Si23Al9)O64 · 24H2OOrth. mmm(2/m2/m2/m) : Immm
9.GC.20Mazzite-NaNa8[Al4Si14O36]2 · 30H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GC.20Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GC.25PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2OHex. 6/mmm(6/m2/m2/m) : P6/mmm
9.GC.30BoggsiteCa8Na3(Si,Al)96O192 · 70H2OOrth. mmm(2/m2/m2/m) : Imma
9.GC.35Paulingite-Ca(Ca,K,Na,Ba, ◻)10 (Si, Al)42O84 · 34H2OIso. m3m(4/m32/m)
9.GC.35Paulingite-K(K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2OIso. m3m(4/m32/m)
9.GC.35'Paulingite-Na'(Na2,K2,Ca,Ba)5[Al10Si35O90] · 45H2OIso.

Fluorescence of MartinandresiteHide

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 MartinandresiteHide

References for MartinandresiteHide

Localities for MartinandresiteHide

Showing 1 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.
Switzerland (TL)
 
  • Valais
    • Brig
      • Ried-Brig
        • Ganter valley
          • Wasen Alp
Hålenius et al. (2017) +2 other references
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