General Cesanite Information Chemical Formula: |
Na7Ca3(SO4)6(OH)•0.8(H2O) |
Composition: |
Molecular Weight = 888.96 gm |
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Sodium 18.10 % Na 24.40 % Na2O |
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Calcium 13.53 % Ca 18.92 % CaO |
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Hydrogen 0.29 % H 2.63 % H2O |
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Sulfur 21.64 % S 54.04 % SO3 |
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Oxygen 46.43 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Na7Ca3(SO4)6(OH)•0.8(H2O) |
IMA Status: |
Approved IMA 1981 |
Locality: |
Core samples from the Cesano-I geothermal well, Cesano area, Latium, Italy. Link to MinDat.org Location Data. |
Name Origin: |
Named after the locality. |
Synonym: |
ICSD 31251 |
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PDF 35-506 |
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Images:
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| | Cesanite Crystallography Axial Ratios: |
a:c = 1:0.73008 |
Cell Dimensions: |
a = 9.463, c = 6.9088, Z = 1; V = 535.79 Den(Calc)= 2.75 |
Crystal System: |
Hexagonal - Trigonal DipyramidalH-M Symbol (6) Space Group: P 6 |
X Ray Diffraction: |
By Intensity(I/Io): 2.727(1), 3.448(0.87), 3.896(0.66), |
Crystal Structure:
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Mouse
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| Physical Properties of Cesanite Color: |
Colorless, White. |
Density: |
2.786 |
Diaphaneity: |
Transparent |
Hardness: |
2-3 - Gypsum-Calcite |
Streak: |
white |
| Optical Properties of Cesanite Gladstone-Dale: |
CI meas= -0.067 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.081 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2062,KPDmeas= 0.2035,KC= 0.1907 Ncalc = 1.52 - 1.53 Optical Data: |
Uniaxial (-), e=1.564, w=1.57, bire=0.0060. |
| Calculated Properties of Cesanite Electron Density: |
Bulk Density (Electron Density)=2.77 gm/cc |
note: Specific Gravity of Cesanite =2.79 gm/cc. Fermion Index: |
Fermion Index = 0.0020291221 |
Boson Index = 0.9979708779 Photoelectric: |
PECesanite = 3.26 barns/electron |
U=PECesanite x rElectron Density= 9.04 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Cesanite is Not Radioactive | Cesanite Classification Dana Class: |
30.03.03.01 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen |
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(30.03)with miscellaneous formulae |
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(30.03.03)Dana Group |
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Strunz Class: |
07.BD.20 07 - SULFATES (SELENATES, TELLURATES) |
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07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O |
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07.BD -With only large cations |
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| Other Cesanite Information References: |
NAME( AmMin, Vol 87, p 715) PHYS. PROP.(AmMin, Vol 87, p 715) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Cesanite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Cesanite using: Visit our Advertisers for Cesanite : A Bijoux Google Search for CesaniteAdam's Minerals Google Search for Cesanite Cape Minerals Google Search for Cesanite Dakota Matrix Minerals Google Search for Cesanite Excalibur Mineral Corp. Google Search for Cesanite Exceptional Minerals Google Search for Cesanite John Betts Fine Minerals Search for Cesanite McDougall Minerals Google Search for Cesanite Mineral News Website Link Rock and Mineral Shows Google Search for Cesanite Weinrich Minerals, Inc. Google Search for Cesanite Ask about Cesanite here : Print or Cut-and-Paste your Cesanite Specimen Label here :
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