Melonjosephite Mineral Data + 
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- 41.10.5.1 Melonjosephite CaFeFe(PO4)2(OH) Pbam 2/m 2/m 2/m
- VII/B.23-10 Melonjosephite CaFeFe(PO4)2(OH) Pbam 2/m 2/m 2/m
- VII/B.23-20 Prosperite CaZn2(AsO4)2·(H2O) C 2/c 2/m
General Melonjosephite Information |
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 Chemical Formula: |
CaFe++Fe+++(PO4)2(OH) | ||
| Composition: |
Molecular Weight = 358.72 gm | ||
| Calcium 11.17 % Ca 15.63 % CaO | |||
| Iron 31.14 % Fe 20.03 % FeO / 22.26 % Fe2O3 | |||
| Phosphorus 17.27 % P 39.57 % P2O5 | |||
| Hydrogen 0.28 % H 2.51 % H2O | |||
| Oxygen 40.14 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaFe2+Fe3+(PO4)2(OH) | ||
| IMA Status: |
Approved IMA 1973 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 100143 | ||
| PDF 25-1454 | |||
Search for Melonjosephite Images | |||
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Images:
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Melonjosephite Crystallography |
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| Axial Ratios: |
a:b:c =0.8802:1:0.5881 | ||
| Cell Dimensions: |
a = 9.548, b = 10.847, c = 6.38, Z = 4; V = 660.76 Den(Calc)= 3.61 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbam | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.049(1), 5.418(0.92), 2.709(0.89), | ||
Physical Properties of Melonjosephite |
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| Cleavage: |
[110] Perfect, [010] Indistinct | ||
| Color: |
Dark green, Black. | ||
| Density: |
3.65 | ||
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
| Hardness: |
5 - Apatite | ||
| Luster: |
Adamantine - Greasy | ||
| Streak: |
greenish | ||
Optical Properties of Melonjosephite |
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| Optical Data: |
Biaxial (-), a=1.72, b=1.77, g=1.8, bire=0.0800, 2V(Calc)=72, 2V(Meas)=80-85. | ||
Calculated Properties of Melonjosephite |
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| Electron Density: |
relectron=3.52 gm/cc |
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| Fermion Index |
Fermion Index = 0.00694 Boson Index = 0.99306 |
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| Photoelectric: |
PEMelonjosephite = 11.52 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Melonjosephite is Not Radioactive |
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Melonjosephite Classification |
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| Dana Class: |
41.10.5.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.10)where (A++ B++)3 (XO4)2 Zq | |||
| (41.10.5)Dana Group | |||
| Strunz Class: |
VII/B.23-10 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.23 - Melonjosephite - Prosperite series | |||
Other Melonjosephite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Melonjosephite : 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 - WWW-MINCRYST 13 -École des Mines de Paris Search for Melonjosephite using: Visit our Advertisers for Melonjosephite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Melonjosephite Mineral Data : Ask about Melonjosephite here : Print or Cut-and-Paste your Melonjosephite Specimen Label here :
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