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Natrofairchildite Mineral Data + |
General Natrofairchildite Information |
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| Na2Ca(CO3)2 | |||
| Molecular Weight = 206.08 gm | |||
| Sodium 22.31 % Na 30.08 % Na2O | |||
| Calcium 19.45 % Ca 27.21 % CaO | |||
| Carbon 11.66 % C 42.71 % CO2 | |||
| Oxygen 46.58 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Na2Ca(CO3)2 | |||
| Found in burbankite-calcite veins. Possible trimorphous with nyerereite and zemkorite. | |||
| Approved IMA 1971 | |||
| Vuori-Jarvi massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. | |||
| Named as the Na analog of fairchildite. | |||
Search for Natrofairchildite Images | |||
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Natrofairchildite Crystallography |
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| a:c = 1:2.4982 | |||
| a = 5.291, c = 13.218, Z = 2; V = 320.46 Den(Calc)= 2.14 | |||
| Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc | |||
| By Intensity(I/Io): 2.67(1), 2.64(0.9), 6.71(0.6), | |||
Physical Properties of Natrofairchildite |
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| [0001] Distinct | |||
| White. | |||
| 2.541 | |||
| Transparent | |||
| Aggregates - Made of numerous individual crystals or clusters. | |||
| Fan Shaped - Occurs as radiating crystals shaped like a fan. | |||
| Platy - Sheet forms (e.g. micas). | |||
| 2.5 - Finger Nail | |||
| Fluorescent, Short UV=orange, Long UV=orange. | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Natrofairchildite |
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| colorless. | |||
| colorless. | |||
| CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.125 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2299,KPDmeas= 0.1936,KC= 0.2044 |
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| Uniaxial (-), e=1.459, w=1.525, bire=0.0660. | |||
Calculated Properties of Natrofairchildite |
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relectron=2.52 gm/cc |
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| Fermion Index = 0.00176 Boson Index = 0.99824 |
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PENatrofairchildite = 2.90 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Natrofairchildite is Not Radioactive |
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Natrofairchildite Classification |
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| 14.3.5.1 (14)Anhydrous Carbonates | |||
| (14.3)with Compound Formula A+2 B++ (CO3)2 | |||
| (14.3.5)Dana Group | |||
| V/B.05-30 V - Nitrates, Carbonates and Borates | |||
| V/B - Waterfree carbonates [CO3]2- without unfamiliar anions | |||
| V/B.05 - Eitelie - Shortite - Carbocernaite series | |||
Other Natrofairchildite Information |
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| NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | |||
| Links to other databases for Natrofairchildite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Natrofairchildite using: Visit our Advertisers for Natrofairchildite : Translate Natrofairchildite Mineral Data : Ask about Natrofairchildite here : Print or Cut-and-Paste your Natrofairchildite Specimen Label here :
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