Wawayandaite Mineral Data + 
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- 78.7.19.1 Wawayandaite Ca12Mn4B2Be18Si12O46(OH,Cl)30[Ortho] P 2/c or Pc Mono
- VIII/D.19-10 Oyelite Ca10B2Si8O29·12(H2O) B**** Ortho
- VIII/D.19-20 Wawayandaite Ca12Mn4B2Be18Si12O46(OH,Cl)30[Ortho] P 2/c or Pc Mono
General Wawayandaite Information |
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 Chemical Formula: |
Ca12Mn4B2Be18Si12O46(OH,Cl)30 [Ortho] | ||
| 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 | |||
| Empirical Formula: |
Ca12Mn2+4B2Be18Si12O46(OH)27Cl3 | ||
| Environment: |
Found in a museum specimen of willemite. | ||
| IMA Status: |
Approved IMA 1989 | ||
| Locality: |
Franklin mine, Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data. | ||
| 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. | ||
| Synonym: |
IMA1988-043 | ||
Search for Wawayandaite Images | |||
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Images:
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Wawayandaite Crystallography |
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| Axial Ratios: |
a:b:c =3.2012:1:3.8377 | ||
| Cell Dimensions: |
a = 15.59, b = 4.87, c = 18.69, Z = 1; beta = 101.84° V = 1,388.82 Den(Calc)= 3.02 | ||
| Crystal System: |
MonoclinicSpace Group: P 2/c or Pc | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.157(1), 15.1(0.9), 3.001(0.7), | ||
Physical Properties of Wawayandaite |
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| Cleavage: |
[100] Perfect | ||
| Color: |
Colorless, White. | ||
| Density: |
3 | ||
| Diaphaniety: |
Transparent | ||
| Habit: |
Platy - Sheet forms (e.g. micas). | ||
| Hardness: |
1 - Talc | ||
| Luster: |
Pearly | ||
| Streak: |
white | ||
Optical Properties of Wawayandaite |
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| 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 |
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| 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 |
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| Electron Density: |
relectron=2.98 gm/cc |
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| Fermion Index |
Fermion Index = 0.07271 Boson Index = 0.92729 |
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| Photoelectric: |
PEWawayandaite = 5.40 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Wawayandaite is Not Radioactive |
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Wawayandaite Classification |
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| Dana Class: |
78.7.19.1 (78)Unclassified silicates | ||
| (78.7)wholly unclassified silicates | |||
| (78.7.19)Dana Group | |||
| Strunz Class: |
VIII/D.19-20 VIII - Silicates | ||
| VIII/D - Unclassified silicates, mostly cations of big size Na, K, Ca, Sr, Pb | |||
| VIII/D.19 - Oyelite - Wawayandaite series | |||
Other Wawayandaite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | ||
| See Also: |
Links to other databases for Wawayandaite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 - Franklin Minerals(Dunn) 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 -École des Mines de Paris Search for Wawayandaite using: Visit our Advertisers for Wawayandaite : Translate Wawayandaite Mineral Data : Ask about Wawayandaite here : Print or Cut-and-Paste your Wawayandaite Specimen Label here :
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