Spodiosite Mineral Data + 
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- 41.6.11.1 Spodiosite ? Ca2(PO4)F Pbcm 2/m 2/m 2/m
- VII/B.25-10 Isokite CaMg(PO4)F C 2/c 2/m
- VII/B.25-20 Panasqueiraite CaMg(PO4)(OH,F) C 2/c 2/m
- VII/B.25-30 Tilasite CaMg(AsO4)F C 2/c 2/m
- VII/B.25-40 Lacroixite NaAl(PO4)F C 2/c 2/m
- VII/B.25-50 Durangite NaAl(AsO4)F C 2/c 2/m
- VII/B.25-55 Maxwellite NaFe(AsO4)F Aa,A2/a Mono
- VII/B.25-60 Nacaphite Na(Na,Ca)2(PO4)F P1 1
- VII/B.25-70 Spodiosite Ca2(PO4)F Pbcm 2/m 2/m 2/m
- VII/B.25-80 Thadeuite (Ca,Mn)(Mg,Fe,Mn)3(PO4)2(OH,F)2 C 2221 2 2 2
General Spodiosite Information |
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 Chemical Formula: |
Ca2(PO4)F | ||
| Composition: |
Molecular Weight = 194.13 gm | ||
| Calcium 41.29 % Ca 57.77 % CaO | |||
| Phosphorus 15.96 % P 36.56 % P2O5 | |||
| Oxygen 32.97 % O | |||
| Fluorine 9.79 % F 9.79 % F | |||
| - % F -4.12 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ca2(PO4)F | ||
| Environment: |
Spodiosite is a mixture of fluorapatite, calcite and serpentine. See IMA action 2003-03-B | ||
| IMA Status: |
Discredited IMA 2003 | ||
| Locality: |
Nyttsta Kran mine, Filipstad, Varmland, Sweden. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named in 1872 from the Greek for "ash gray", in allusion to the color. | ||
| Synonym: |
Discredited | ||
Search for Spodiosite Images | |||
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Images:
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Spodiosite Crystallography |
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| Axial Ratios: |
a:b:c =0.8857:1:1.5489 | ||
| Cell Dimensions: |
a = 6.185, b = 6.983, c = 10.816, Z = 4; V = 467.14 Den(Calc)= 2.76 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbcm | ||
Physical Properties of Spodiosite |
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| Cleavage: |
[010] Distinct, [001] Indistinct | ||
| Color: |
Gray, Blue gray, Gray brown. | ||
| Density: |
2.94 | ||
| Habit: |
Porcelainous - Fine-grained, translucent massive material like broken china | ||
| Hardness: |
5 - Apatite | ||
| Luster: |
Earthy (Dull) | ||
Optical Properties of Spodiosite |
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| Gladstone-Dale: |
CI meas= -0.197 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.275 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2459,KPDmeas= 0.2308,KC= 0.1928 |
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| Optical Data: |
Biaxial (+), a=1.663, b=1.674, g=1.699, bire=0.0360 | ||
Calculated Properties of Spodiosite |
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| Electron Density: |
relectron=2.91 gm/cc |
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| Fermion Index |
Fermion Index = 0.00071 Boson Index = 0.99929 |
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| Photoelectric: |
PESpodiosite = 5.91 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Spodiosite is Not Radioactive |
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Spodiosite Classification |
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| Dana Class: |
41.6.11.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.6)where (A)2 (XO4) Zq | |||
| (41.6.11)Dana Group | |||
| Strunz Class: |
VII/B.25-70 VII - Phosphates, Arsenates and Vanadates | ||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb | |||
| VII/B.25 - Isokite - Thadeuite series | |||
Other Spodiosite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | ||
| See Also: |
Links to other databases for Spodiosite : 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 - Scandinavian mineral gallery 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Spodiosite using: Visit our Advertisers for Spodiosite : Translate Spodiosite Mineral Data : Ask about Spodiosite here : Print or Cut-and-Paste your Spodiosite Specimen Label here :
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