General Baylissite Information Chemical Formula: |
K2Mg(CO3)2•4(H2O) |
Composition: |
Molecular Weight = 294.58 gm |
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Potassium 26.55 % K 31.98 % K2O |
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Magnesium 8.25 % Mg 13.68 % MgO |
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Hydrogen 2.74 % H 24.46 % H2O |
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Carbon 8.15 % C 29.88 % CO2 |
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Oxygen 54.31 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
K2Mg(CO3)2•4(H2O) |
Environment: |
Secondary mineral in fractures in aplite granite and granodiorite. |
IMA Status: |
Approved IMA 1976 |
Locality: |
Gerstenegg-Sommerloch cable tunnel, north of the Grimsel Pass, Bern, Switzerland. Link to MinDat.org Location Data. |
Name Origin: |
Named for Noel Stanley Bayliss, Professor of Chemistry, University of Western Australia, Nedlands, Western Australia, who characterized the synthetic compound. |
Name Pronunciation: |
Baylissite + Pronunciation |
Synonym: |
ICSD 200006 |
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PDF 29-1017 |
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Images:
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| | Baylissite Crystallography Axial Ratios: |
a:b:c =1.9823:1:1.0993 |
Cell Dimensions: |
a = 12.37, b = 6.24, c = 6.86, Z = 2; beta = 114.5° V = 481.84 Den(Calc)= 2.03 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a |
X Ray Diffraction: |
By Intensity(I/Io): 3.01(1), 2.98(0.9), 6.31(0.8), |
Crystal Structure:
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Mouse
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| Physical Properties of Baylissite Color: |
Colorless. |
Diaphaneity: |
Transparent |
Streak: |
white |
| Optical Properties of Baylissite Gladstone-Dale: |
CI calc= -0.032 (Excellent) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.2438,KC= 0.2363 Ncalc = 1.48 Optical Data: |
Biaxial (-), a=1.465, b=1.485, g=1.535, bire=0.0700, 2V(Calc)=68, 2V(Meas)=64. |
| Calculated Properties of Baylissite Electron Density: |
Bulk Density (Electron Density)=2.07 gm/cc |
note: Specific Gravity of Baylissite =2.03 gm/cc. Fermion Index: |
Fermion Index = 0.0094443671 |
Boson Index = 0.9905556329 Photoelectric: |
PEBaylissite = 2.95 barns/electron |
U=PEBaylissite x relectron= 6.09 barns/cc. Radioactivity: |
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GRapi = 390.05 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Baylissite - barely detectable | Baylissite Classification Dana Class: |
15.02.04.01 (15)Hydrated Carbonates |
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(15.02)where A+m B++n (XO3)p · x(H2O), (m+n):p > 1:1 |
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(15.02.04)Dana Group |
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Strunz Class: |
05.CB.45 05 - CARBONATES (NITRATES) |
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05.C - Carbonates without Additional Anions, with H2O |
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05.CB -With large cations (alkali and alkali-earth carbonates) |
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| Other Baylissite Information References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Baylissite : |
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 Baylissite using: Visit our Advertisers for Baylissite : A Bijoux Google Search for BaylissiteAdam's Minerals Google Search for Baylissite Cape Minerals Google Search for Baylissite Dakota Matrix Minerals Google Search for Baylissite Excalibur Mineral Corp. Google Search for Baylissite Exceptional Minerals Google Search for Baylissite John Betts Fine Minerals Search for Baylissite McDougall Minerals Google Search for Baylissite Mineral News Website Link Rock and Mineral Shows Google Search for Baylissite Weinrich Minerals, Inc. Google Search for Baylissite Ask about Baylissite here : Print or Cut-and-Paste your Baylissite Specimen Label here :
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