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Pirssonite Mineral Data + |
General Pirssonite Information |
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| Na2Ca(CO3)2·2(H2O) | |||
| Molecular Weight = 242.11 gm | |||
| Sodium 18.99 % Na 25.60 % Na2O | |||
| Calcium 16.55 % Ca 23.16 % CaO | |||
| Hydrogen 1.67 % H 14.88 % H2O | |||
| Carbon 9.92 % C 36.36 % CO2 | |||
| Oxygen 52.87 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Na2Ca(CO3)2·2(H2O) | |||
| Continental evaporite deposits. | |||
| Valid Species (Pre-IMA) 1896 | |||
| Searles Lake, San Bernardino Co., California. Link to MinDat.org Location Data. | |||
| ICSD 9012 | |||
| PDF 22-476 | |||
Pirssonite Image | |||
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Pirssonite Crystallography |
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| a:b:c =0.5643:1:0.2991 | |||
| a = 11.32, b = 20.06, c = 6, Z = 8; V = 1,362.48 Den(Calc)= 2.36 | |||
| Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: F dd2 | |||
| By Intensity(I/Io): 2.51(1), 2.65(0.9), 2.57(0.8), | |||
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Physical Properties of Pirssonite |
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| None | |||
| Colorless, Grayish, White. | |||
| 2.35 | |||
| Transparent to translucent | |||
| Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | |||
| 3 - Calcite | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Pirssonite |
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| CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2244,KPDmeas= 0.2254,KC= 0.2246 |
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| Biaxial (+), a=1.5043, b=1.5095, g=1.5751, bire=0.0708, 2V(Calc)=34, 2V(Meas)=31.433. Dispersion relatively weak. | |||
Calculated Properties of Pirssonite |
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relectron=2.38 gm/cc |
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| Fermion Index = 0.00157 Boson Index = 0.99843 |
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PEPirssonite = 2.48 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Pirssonite is Not Radioactive |
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Pirssonite Classification |
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| 15.2.1.1 (15)Hydrated Carbonates | |||
| (15.2)where A+m B++n (XO3)p · x(H2O), (m+n):p > 1:1 | |||
| (15.2.1)Dana Group | |||
| V/D.02-50 V - Nitrates, Carbonates and Borates | |||
| V/D - Water-bearing carbonates without unfamiliar anions | |||
| V/D.02 - Thermonatrite - Chalconatronite series | |||
Other Pirssonite Information |
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| NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Pirssonite : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 -Athena 6 - EUROmin Project 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 -QUT Mineral Atlas 15 - WWW-MINCRYST 16 -École des Mines de Paris Search for Pirssonite using: Visit our Advertisers for Pirssonite : Translate Pirssonite Mineral Data : Ask about Pirssonite here : Print or Cut-and-Paste your Pirssonite Specimen Label here :
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