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Mordenite Mineral Data

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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 Name Pronunciation: Name Pronunciation: Mordenite + Pronunciation Say MORDENITE
Help on Synonym: Synonym: Arduinite
  Ashtonite
  Pseudonatrolite
  Ptilolite
 

Mordenite Image

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  Mordenite   Heulandite-Ca

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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  Heulandite-Ca   Mordenite

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 - Pyramidal H-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),
 

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 Diaphaneity: Diaphaneity: 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: Non-fluorescent.
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
Ncalc = 1.46 - 1.48
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: Bulk Density (Electron Density)=2.14 gm/cc
note: Specific Gravity of Mordenite =2.13 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
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)
Concentration of Mordenite per GRapi unit = 15.31 (%)

Estimated Radioactivity from Mordenite - barely detectable

 

Mordenite Classification

Help on  Dana Class: Dana Class: 77.01.06.01 (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.06)Mordenite and related species
 
77.01.06.01 Mordenite (Ca,Na2,K2)Al2Si10O24•7(H2O) C mc21 mm2
 
77.01.06.02 Epistilbite CaAl2Si6O16•5(H2O) C1 1
 
77.01.06.03 Maricopaite Pb7Ca2(Si,Al)48O100•32(H2O) Cm2m 2/m 2/m 2/m
 
77.01.06.04 Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96•25(H2O) C 2/m 2/m
 
77.01.06.05 Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48•13(H2O) C 2/m 2/m
 
77.01.06.06 Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m
 
77.01.06.06a Ferrierite-K! (K,Na)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m
 
77.01.06.06b Ferrierite-Na! (Na,K)2Mg(Si,Al)18O36•9(H2O) P 21/n 2/m
 
77.01.06.07 Boggsite NaCa2(Al5Si19O48)•17(H2O) I mma 2/m 2/m 2/m
 
77.01.06.08 Gottardiite! Na3Mg3Ca5Al19Si117O272•93(H2O) C mca 2/m 2/m 2/m
 
77.01.06.09 Terranovaite! (Na,Ca)8(Si68Al12)O160•29(H2O) C mcm 2/m 2/m 2/m
 
77.01.06.10 Mutinaite! Na3Ca4Si85Al11O192•60(H2O) P nma 2/m 2/m 2/m
 
77.01.06.12 Direnzoite! NaK6MgCa2(Al13Si47O120)•36H2O Pmmn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.GD.35 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GD -Chains of 6-membered rings � tabular zeolites
 
09.GD.35 Maricopaite Pb7Ca2(Si,Al)48O100•32(H2O) Cm2m 2/m 2/m 2/m
 
09.GD.35 Mordenite (Ca,Na2,K2)Al2Si10O24•7(H2O) C mc21 mm2
 

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 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - Philatelic Mineralogy
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST
18 - Zeolite Database by Bruno Herreros

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Print or Cut-and-Paste your Mordenite Specimen Label here :

Mordenite

(Ca,Na2,K2)Al2Si10O24•7(H2O)
Dana No: 77.01.06.01 Strunz No: 09.GD.35
Locality:

 

Notes:

 

 
   
 


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