Mineralogy Database

Terranovaite Mineral Data

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General Terranovaite Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca)8(Si68Al12)O160•29(H2O)
Help on Composition: Composition: Molecular Weight = 5,573.13 gm
   Potassium   0.14 %  K     0.17 % K2O
   Sodium      1.73 %  Na    2.34 % Na2O
   Calcium     2.66 %  Ca    3.72 % CaO
   Magnesium   0.09 %  Mg    0.14 % MgO
   Aluminum    5.95 %  Al   11.25 % Al2O3
   Silicon    34.12 %  Si   72.99 % SiO2
   Hydrogen    1.05 %  H     9.37 % H2O
   Oxygen     54.26 %  O
             ______        ______ 
             100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4.2K0.2Mg0.2Ca3.7Al12.3Si67.7O160•29(H2O)
Help on Environment: Environment: In cavities in dolorites.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: The southwest crest, just below the summit of Mt. Adamson, Northern Victoria Land, Antarctica. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the Italian Antarctic Station at Terranova Bay, Antarctica.
Help on Name Pronunciation: Name Pronunciation: Terranovaite + Pronunciation Say TERRANOVAITE
Help on Synonym: Synonym: ICSD 83466

Terranovaite Image

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Comments: B&W image of terranovaite crystal. (AmMin, v82:423).
Location: Jurassic Ferrar dolerites of Mt. Adamson, Northern Victoria Land, Antarctica. Scale: See Image.
© American Mineralogist

Terranovaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4081:1:0.8403
Help on Cell Dimensions: Cell Dimensions: a = 9.747, b = 23.88, c = 20.068, Z = 1; V = 4,670.99 Den(Calc)= 1.98
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: C mcm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.79(1)(025,240), 10.16(0.65)(002), 11.94(0.4)(020),3.61(0.4)(153), 9.04(0.33)(110),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 0) ( 1 1 0) ( 0 0 1)

Warning: this java applet does not work in some browsers because of security restrictions.


Physical Properties of Terranovaite

Help on Cleavage: Cleavage: {010} Perfect, {001} Parting
Help on Color: Color: Colorless, Bluish white.
Help on Density: Density: 1.98 - 2.13, Average = 2.05
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Irregular - Very brittle fracture producing irregular fragments
Help on Habit: Habit: Globular - Spherical, or nearly so, rounded forms (e.g. wavellite).
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Terranovaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.06 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.1 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2419,KPDmeas= 0.2331,KC= 0.2199
Ncalc = 1.44 - 1.47
Help on Optical Data: Optical Data: Biaxial (+), a=1.476, b=1.478, g=1.483, bire=0.0070

Calculated Properties of Terranovaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.07 gm/cc
note: Specific Gravity of Terranovaite =2.06 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PETerranovaite = 1.87 barns/electron
U=PETerranovaite x relectron= 3.87 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2.06 (Gamma Ray American Petroleum Institute Units)
Concentration of Terranovaite per GRapi unit = 48.53 (%)

Estimated Radioactivity from Terranovaite - barely detectable


Terranovaite Classification

Help on  Dana Class: Dana Class: (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.06)Mordenite and related species Mordenite (Ca,Na2,K2)Al2Si10O24•7(H2O) C mc21 mm2 Epistilbite CaAl2Si6O16•5(H2O) C1 1 Maricopaite Pb7Ca2(Si,Al)48O100•32(H2O) Cm2m 2/m 2/m 2/m Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96•25(H2O) C 2/m 2/m Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48•13(H2O) C 2/m 2/m Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m Ferrierite-K! (K,Na)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m Ferrierite-Na! (Na,K)2Mg(Si,Al)18O36•9(H2O) P 21/n 2/m Boggsite NaCa2(Al5Si19O48)•17(H2O) I mma 2/m 2/m 2/m Gottardiite! Na3Mg3Ca5Al19Si117O272•93(H2O) C mca 2/m 2/m 2/m Terranovaite! (Na,Ca)8(Si68Al12)O160•29(H2O) C mcm 2/m 2/m 2/m Mutinaite! Na3Ca4Si85Al11O192•60(H2O) P nma 2/m 2/m 2/m Direnzoite! NaK6MgCa2(Al13Si47O120)•36H2O Pmmn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.GF.05 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GF -Other Rare Zeolites
09.GF.05 Terranovaite! (Na,Ca)8(Si68Al12)O160•29(H2O) C mcm 2/m 2/m 2/m

Other Terranovaite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.82,p423-429,1997) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Terranovaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 09.GF.05





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