Paraspurrite Mineral Data + 
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- 53.1.2.1 Paraspurrite Ca5(SiO4)2(CO3) P 21/a 2/m
- VIII/B.22-10 Hatrurite Ca3SiO5 R 3m 3m
- VIII/B.22-25 Poldervaartite (Ca,Mn)2SiO3(OH)2 P bca 2/m 2/m 2/m
- VIII/B.22-30 Afwillite Ca3Si2O4(OH)6 P 21 2
- VIII/B.22-40 Bultfonteinite Ca2SiO2(OH,F)4 P1 1
- VIII/B.22-50 Spurrite Ca5(SiO4)2(CO3) P 21/a 2/m
- VIII/B.22-60 Paraspurrite Ca5(SiO4)2(CO3) P 21/a 2/m
- VIII/B.22-65 Ternesite! Ca5(SiO4)2SO4 P nma 2/m 2/m 2/m
- VIII/B.22-70 Nagelschmidtite Ca7(SiO4)3(PO4)2 Unk Hex
- VIII/B.22-75 Harrisonite! Ca(Fe,Mg)6(PO4)2(SiO4)2 R 3m 3 2/m
- VIII/B.22-80 Fukalite Ca4Si2O6(CO3)(OH,F)2 Unk Ortho
- VIII/B.22-90 Thaumasite Ca3Si(CO3)(SO4)(OH)6·12(H2O) P 63/m 6/m
- VIII/B.22-100 Chelyabinskite* (Ca,Mg)3Si(OH)6(SO4,CO3)2·9(H2O) Unk Ortho
General Paraspurrite Information |
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 Chemical Formula: |
Ca5(SiO4)2(CO3) | ||
| Composition: |
Molecular Weight = 444.57 gm | ||
| Calcium 45.08 % Ca 63.07 % CaO | |||
| Silicon 12.64 % Si 27.03 % SiO2 | |||
| Carbon 2.70 % C 9.90 % CO2 | |||
| Oxygen 39.59 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ca5(SiO4)2(CO3) | ||
| IMA Status: |
Approved IMA 1977 | ||
| Locality: |
Darwin mines, Darwin, Inyo Co., California. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named because of it's similarity to spurrite. | ||
Paraspurrite Image | |||
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Images:
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Paraspurrite Crystallography |
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| Axial Ratios: |
a:b:c =1.5617:1:4.1425 | ||
| Cell Dimensions: |
a = 10.473, b = 6.706, c = 27.78, Z = 8; beta = 90.58° V = 1,950.94 Den(Calc)= 3.03 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.47(1), 6.92(0.78), 1.983(0.63), | ||
Physical Properties of Paraspurrite |
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| Cleavage: |
[001] Indistinct | ||
| Color: |
Colorless. | ||
| Density: |
3 | ||
| Diaphaniety: |
Transparent | ||
| Streak: |
white | ||
Optical Properties of Paraspurrite |
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| Gladstone-Dale: |
CI meas= -0.06 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.049 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2199,KPDmeas= 0.2221,KC= 0.2096 |
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| Optical Data: |
Biaxial (-), a=1.65, b=1.672, g=1.677, bire=0.0270, 2V(Calc)=50, 2V(Meas)=47. | ||
Calculated Properties of Paraspurrite |
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| Electron Density: |
relectron=3.03 gm/cc |
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| Fermion Index |
Fermion Index = 0.00699 Boson Index = 0.99301 |
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| Photoelectric: |
PEParaspurrite = 6.04 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Paraspurrite is Not Radioactive |
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Paraspurrite Classification |
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| Dana Class: |
53.1.2.1 (53)Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations | ||
| (53.1)with (CO3) | |||
| (53.1.2)Dana Group | |||
| Strunz Class: |
VIII/B.22-60 VIII - Silicates | ||
| VIII/B - Nesosubsilicates, with anions unfamiliar to tetraheders, cationes with coordinationnumber between [8] and [12] | |||
| VIII/B.22 - Thaumasite series | |||
Other Paraspurrite Information |
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| References: |
NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Paraspurrite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Paraspurrite using: Visit our Advertisers for Paraspurrite : Translate Paraspurrite Mineral Data : Ask about Paraspurrite here : Print or Cut-and-Paste your Paraspurrite Specimen Label here :
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