Mineralogy Database

Wawayandaite Mineral Data

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General Wawayandaite Information

Help on Chemical  Formula: Chemical Formula: Ca12Mn4B2Be18Si12O46(OH,Cl)30 [Ortho]
Help on Composition: Composition: Molecular Weight = 2,523.08 gm
   Calcium    19.06 %  Ca   26.67 % CaO
   Manganese   8.71 %  Mn   11.25 % MnO
   Beryllium   6.43 %  Be   17.84 % BeO
   Silicon    13.36 %  Si   28.58 % SiO2
   Boron       0.86 %  B     2.76 % B2O3
   Hydrogen    1.08 %  H     9.64 % H2O
   Chlorine    4.22 %  Cl    4.22 % Cl
                -   %   Cl   -0.95 % -O=Cl2   
   Oxygen     46.29 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca12Mn2+4B2Be18Si12O46(OH)27Cl3
Help on Environment: Environment: Found in a museum specimen of willemite.
Help on IMA Status: IMA Status: Approved IMA 1989
Help on Locality: Locality: Franklin mine, Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Lenni Lenape Native American word "wawayanda," many or several winding, in allusion to the grossly curved and winding habit of its crystals.
Help on Name Pronunciation: Name Pronunciation: Wawayandaite + Pronunciation Say WAWAYANDAITE
Help on Synonym: Synonym: IMA1988-043

Wawayandaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =3.2012:1:3.8377
Help on Cell Dimensions: Cell Dimensions: a = 15.59, b = 4.87, c = 18.69, Z = 1; beta = 101.84° V = 1,388.82 Den(Calc)= 3.02
Help on Crystal System: Crystal System: Monoclinic Space Group: P 2/c or Pc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.157(1), 15.1(0.9), 3.001(0.7),

Physical Properties of Wawayandaite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Colorless, White.
Help on Density: Density: 3
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Pearly
Help on Streak: Streak: white

Optical Properties of Wawayandaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.096 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.102 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2087,KPDmeas= 0.2101,KC= 0.2325
Ncalc = 1.7
Help on Optical Data: Optical Data: Biaxial (-), a=1.619, b=1.631, g=1.641, bire=0.0220, 2V(Calc)=84, 2V(Meas)=85. Dispersion r < v strong.

Calculated Properties of Wawayandaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.98 gm/cc
note: Specific Gravity of Wawayandaite =3.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PEWawayandaite = 5.40 barns/electron
U=PEWawayandaite x rElectron Density= 16.07 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wawayandaite is Not Radioactive

Wawayandaite Classification

Help on  Dana Class: Dana Class: (78)Unclassified silicates
  (78.07)wholly unclassified silicates
  (78.07.19)Dana Group Wawayandaite Ca12Mn4B2Be18Si12O46(OH,Cl)30[Ortho] P 2/c or Pc Mono
Help on  Strunz Class: Strunz Class: 09.HA.20 09 - SILICATES (Germanates)
  09.H - Unclassified Silicates
  09.HA -With alkali and alkali-earth Elements
09.HA.20 Wawayandaite Ca12Mn4B2Be18Si12O46(OH,Cl)30[Ortho] P 2/c or Pc Mono

Other Wawayandaite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Wawayandaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
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 - QUT Mineral Atlas
15 - Ruff.Info

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


Ca12Mn4B2Be18Si12O46(OH,Cl)30 [Ortho]
Dana No: Strunz No: 09.HA.20





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