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Clinotobermorite Mineral Data |
General Clinotobermorite Information |
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Ca5Si6(O,OH)18•5(H2O) | ||
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Molecular Weight = 751.00 gm | ||
Calcium 26.68 % Ca 37.34 % CaO | |||
Silicon 22.44 % Si 48.00 % SiO2 | |||
Hydrogen 1.88 % H 16.79 % H2O | |||
Oxygen 49.00 % O | |||
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100.00 % 102.13 % = TOTAL OXIDE | |||
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Ca5Si6O14(OH)4•5(H2O) | ||
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A vein-forming mineral in gehlenite-spurrite skarns. Low-temperature polymorph of tobermorite. | ||
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Approved IMA 1989 | ||
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Fuka, Bitchucho, Okayama Prefecture, Japan. Link to MinDat.org Location Data. | ||
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Named as the monoclinic polymorph of tobermorite. | ||
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ICSD 403090 | ||
IMA1990-005 | |||
PDF 45-1479 | |||
Clinotobermorite Image | |||
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Clinotobermorite Crystallography |
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a:b:c =1.541:1:3.083 | ||
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a = 11.331, b = 7.353, c = 22.67, Z = 4; beta = 96.59° V = 1,876.31 Den(Calc)= 2.66 | ||
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Monoclinic Space Group: Cc,C 2/c | ||
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By Intensity(I/Io): 11.25(1), 2.794(0.6), 3.034(0.6), | ||
Physical Properties of Clinotobermorite |
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{001} Perfect, {100} Poor | ||
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Colorless, White. | ||
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2.58 | ||
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Transparent | ||
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Acicular - Occurs as needle-like crystals. | ||
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Platy - Sheet forms (e.g. micas). | ||
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Tabular - Form dimensions are thin in one direction. | ||
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4.5 - Between Fluorite and Apatite | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Clinotobermorite |
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CI meas= 0.045 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.074 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.218,KPDmeas= 0.2248,KC= 0.2353 Ncalc = 1.61 - 1.63 |
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Biaxial (+/-), a=1.575, b=1.58, g=1.585, bire=0.0100, 2V(Calc)=88, 2V(Meas)=89.8. | ||
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colorless. | ||
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colorless. | ||
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colorless. | ||
Calculated Properties of Clinotobermorite |
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Bulk Density (Electron Density)=2.62 gm/cc note: Specific Gravity of Clinotobermorite =2.58 gm/cc. |
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Fermion Index = 0.01 Boson Index = 0.99 |
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PEClinotobermorite = 4.11 barns/electron U=PEClinotobermorite x rElectron Density= 10.78 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Clinotobermorite is Not Radioactive |
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Clinotobermorite Classification |
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72.03.02.02 (72)Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings | ||
(72.03)with 3-, 4-, or 5-membered rings and 8-membered rings | |||
(72.03.02)Tobermorite group (5- & 8-membered rings) | |||
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09.DG.10 09 - SILICATES (Germanates) | ||
09.D - Inosilicates* Structural terminology according to Liebau (1985) | |||
09.DG -Inosilicates with 3-periodic single and multiple chains | |||
Other Clinotobermorite Information |
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NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | ||
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Links to other databases for Clinotobermorite : 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 Clinotobermorite using: Visit our Advertisers for Clinotobermorite : Ask about Clinotobermorite here : Print or Cut-and-Paste your Clinotobermorite Specimen Label here :
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