Mordenite Mineral Data + Say MORDENITE

General Mordenite Information
Help on Chemical Formula: Chemical Formula: (Ca,Na2,K2)Al2Si10O24·7(H2O)
Help on Composition: Composition: Molecular Weight = 874.11 gm
   Potassium   0.45 %  K     0.54 % K2O
   Sodium      2.89 %  Na    3.90 % Na2O
   Calcium     2.29 %  Ca    3.21 % CaO
   Aluminum    6.79 %  Al   12.83 % Al2O3
   Silicon    31.49 %  Si   67.36 % SiO2
   Hydrogen    1.36 %  H    12.16 % H2O
   Oxygen     54.73 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.1Ca0.5K0.1Al2.2Si9.8O24·5.9(H2O)
Help on Environment: Environment: Cavities in andesitic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1864
Help on Locality: Locality: Shore of Bay of Fundy, 3-5 km east of Morden, King’s County, Nova Scotia, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Synonym: Synonym: Arduinite
  Ashtonite
  Pseudonatrolite
  Ptilolite
 

Mordenite Image

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Mordenite   Heulandite

Comments: White, acicular crystals of mordenite in heulandite geode.
Location: Rock Creek, Stevenson, Skamania County, Washington, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
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Mordenite   Heulandite-Ca

Comments: Pink heulandite crystals up to 15 mm in fibrous white mordenite matrix.
Location: Rats Nest Claim, Challis, Custer Co., Idaho, USA. Scale: 6x6x4 cm.
© John Betts - Fine Minerals

Mordenite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.883:1:0.3669
Help on Cell Dimensions: Cell Dimensions: a = 18.114, b = 20.514, c = 7.527, Z = 4; V = 2,796.96 Den(Calc)= 2.08
Help on Crystal System: Crystal System: Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: C mc21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.06(1), 4(0.7), 3.48(0.45),
Click Here for Large Mordenite Structure Window Crystal Structure:

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Simoncic P , Armbruster T , American Mineralogist , 89 (2004) p.421-431, Peculiarity and defect structure of the natural and synthetic zeolite mordenite:, A single-crystal X-ray study, Sample: natural

View Additional jPOWD Structure files for Mordenite
[1] [2] [3] [4] [5] [6]
 

Physical Properties of Mordenite

Help on Cleavage: Cleavage: [010] Perfect
Help on Color: Color: Colorless, White, Yellowish, Pinkish.
Help on Density: Density: 2.1 - 2.15, Average = 2.12
Help on Diaphaniety: Diaphaniety: Transparent to translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Blocky - Crystal shape tends to be equant (e.g. feldspars).
Help on Habit: Habit: Reniform - "Kidney like" in shape (e.g.. hematite).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 5 - Apatite
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Vitreous - Silky
Help on Streak: Streak: white
 

Optical Properties of Mordenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.033 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2307,KPDmeas= 0.2258,KC= 0.2232
Help on Optical Data: Optical Data: Biaxial (+/-), a=1.472-1.483, b=1.475-1.485, g=1.477-1.487, bire=0.0040-0.0050, 2V(Calc)=78-88, 2V(Meas)=76-104. Dispersion none.
 

Calculated Properties of Mordenite

Help on Electron Density: Electron Density:

relectron=2.14 gm/cc
note: rMordenite =2.13 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.015
Boson Index = 0.985
Help on Photoelectric: Photoelectric:

PEMordenite = 1.80 barns/electron
U=PEMordenite x relectron= 3.87 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 6.53 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Mordenite - barely detectable

 

Mordenite Classification
Help on Dana Class: Dana Class: 77.1.6.1 (77)Tectosilicate Zeolite group
  (77.1)true zeolites
  (77.1.6)Mordenite and related species
 
77.1.6.1 Mordenite (Ca,Na2,K2)Al2Si10O24·7(H2O) C mc21 mm2
 
77.1.6.2 Epistilbite CaAl2Si6O16·5(H2O) C1 1
 
77.1.6.3 Maricopaite Pb7Ca2(Si,Al)48O100·32(H2O) Cm2m 2/m 2/m 2/m
 
77.1.6.4 Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96·25(H2O) C 2/m 2/m
 
77.1.6.5 Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48·13(H2O) C 2/m 2/m
 
77.1.6.6 Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36·9(H2O) Pnnm 2/m 2/m 2/m
 
77.1.6.6a Ferrierite-K! (K,Na)2Mg(Si,Al)18O36·9(H2O) Pnnm 2/m 2/m 2/m
 
77.1.6.6b Ferrierite-Na! (Na,K)2Mg(Si,Al)18O36·9(H2O) P 21/n 2/m 2/m 2/m
 
77.1.6.7 Boggsite NaCa2(Al5Si19O48)·17(H2O) I mma 2/m 2/m 2/m
 
77.1.6.8 Gottardiite! Na3Mg3Ca5Al19Si117O272·93(H2O) C mca 2/m 2/m 2/m
 
77.1.6.9 Terranovaite! (Na,Ca)8(Si68Al12)O160-29(H2O) C mcm 2/m 2/m 2/m
 
77.1.6.10 Mutinaite! Na3Ca4Si85Al11O192·60(H2O) P nma 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: VIII/J.22-30 VIII - Silicates
  VIII/J - Tectosilicates (network), with zeolite-structure, Bladed Zeolites
  VIII/J.22 - Zeolite group, Ferrierite - Laumontite series
 
VIII/J.22-01 Ferrierite-Na! (Na,K)2Mg(Si,Al)18O36·9(H2O) P 21/n 2/m 2/m 2/m
 
VIII/J.22-03 Ferrierite-K! (K,Na)2Mg(Si,Al)18O36·9(H2O) Pnnm 2/m 2/m 2/m
 
VIII/J.22-05 Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36·9(H2O) Pnnm 2/m 2/m 2/m
 
VIII/J.22-06 Mutinaite! Na3Ca4Si85Al11O192·60(H2O) P nma 2/m 2/m 2/m
 
VIII/J.22-07 Terranovaite! (Na,Ca)8(Si68Al12)O160-29(H2O) C mcm 2/m 2/m 2/m
 
VIII/J.22-08 Gottardiite! Na3Mg3Ca5Al19Si117O272·93(H2O) C mca 2/m 2/m 2/m
 
VIII/J.22-10 Boggsite NaCa2(Al5Si19O48)·17(H2O) I mma 2/m 2/m 2/m
 
VIII/J.22-15 Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48·13(H2O) C 2/m 2/m
 
VIII/J.22-20 Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96·25(H2O) C 2/m 2/m
 
VIII/J.22-30 Mordenite (Ca,Na2,K2)Al2Si10O24·7(H2O) C mc21 mm2
 
VIII/J.22-40 Edingtonite BaAl2Si3O10·4(H2O) P 21212 2 2 2
 
VIII/J.22-50 Laumontite CaAl2Si4O12·4(H2O) C 2/m 2/m
 

Other Mordenite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Mordenite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (MinSocAm) 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 - Philatelic Mineralogy 15 -QUT Mineral Atlas 16 - University of Manchester - Mineral Structure 17 - WWW-MINCRYST 18 -Zeolite Database by Bruno Herreros 19 -École des Mines de Paris

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Mordenite

(Ca,Na2,K2)Al2Si10O24·7(H2O)
Dana No: 77.1.6.1 Strunz No: VIII/J.22-30
Locality:

 

Notes:

 
 
   
 
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