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General Vaterite Information |
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 Chemical Formula: |
CaCO3 | ||
| Composition: |
Molecular Weight = 100.09 gm | ||
| Calcium 40.04 % Ca 56.03 % CaO | |||
| Carbon 12.00 % C 43.97 % CO2 | |||
| Oxygen 47.96 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ca(CO3) | ||
| Environment: |
Major constituent of a carbonated calcium silicate hydrogel complex formed from larnite. Trimorphous with aragonite and calcite; metastable below 400 deg C. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1911 | ||
| Locality: |
Ballycraigy, Larne, Co. Antrim, Ireland. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Heinrich Vater (1859-1930), Professor of Mineralogy and Chemistry, Tharandt, Germany. | ||
| Name Pronunciation: |
Vaterite  |
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| Synonym: |
ICSD 18127 | ||
| PDF 33-268 | |||
Vaterite Image | |||
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Images:
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Vaterite Crystallography |
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| Axial Ratios: |
a:c = 1:2.37981 | ||
| Cell Dimensions: |
a = 7.135, c = 16.98, Z = 12; V = 748.61 Den(Calc)= 2.66 | ||
| Crystal System: |
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.73(1), 3.3(1), 3.58(1), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Vaterite |
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| Cleavage: |
{???} Good | ||
| Color: |
Colorless. | ||
| Density: |
2.54 | ||
| Diaphaneity: |
Transparent | ||
| Hardness: |
3 - Calcite | ||
| Streak: |
white | ||
Optical Properties of Vaterite |
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| Gladstone-Dale: |
CI meas= -0.123 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.072 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2256,KPDmeas= 0.2362,KC= 0.2104 Ncalc = 1.53 - 1.56 |
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| Optical Data: |
Uniaxial (+), w=1.55, e=1.65, bire=0.1000. | ||
Calculated Properties of Vaterite |
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| Electron Density: |
Bulk Density (Electron Density)=2.66 gm/cc note: Specific Gravity of Vaterite =2.66 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0020908312 Boson Index = 0.9979091688 |
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| Photoelectric: |
PEVaterite = 5.06 barns/electron U=PEVaterite x rElectron Density= 13.45 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Vaterite is Not Radioactive |
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Vaterite Classification |
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| Dana Class: |
14.01.02.01 (14)Anhydrous Carbonates | ||
| (14.01)with Simple Formula A+ CO3 | |||
| (14.01.02)Vaterite Group | |||
| Strunz Class: |
05.AB.20 05 - CARBONATES (NITRATES) | ||
| 05.A - Carbonates without additional anions, without H2O | |||
| 05.AB -Alkali-earth (and other M2+) carbonates | |||
Other Vaterite Information |
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| 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 Vaterite : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Athena 5 - EUROmin Project 6 - Ecole des Mines de Paris 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineralienatlas (Deutsch) 14 - Online Mineral Museum 15 - QUT Mineral Atlas 16 - Ruff.Info 17 - WWW-MINCRYST Search for Vaterite using: Visit our Advertisers for Vaterite : A Bijoux Google Search for VateriteAdam's Minerals Google Search for Vaterite Cape Minerals Google Search for Vaterite Dakota Matrix Minerals Google Search for Vaterite Excalibur Mineral Corp. Google Search for Vaterite Exceptional Minerals Google Search for Vaterite John Betts Fine Minerals Search for Vaterite McDougall Minerals Google Search for Vaterite Mineral News Website Link Rock and Mineral Shows Google Search for Vaterite Weinrich Minerals, Inc. Google Search for Vaterite Ask about Vaterite here : Print or Cut-and-Paste your Vaterite Specimen Label here :
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