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Diadochite Mineral Data + |
General Diadochite Information |
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| Fe+++2(PO4)(SO4)(OH)·6(H2O) | |||
| Molecular Weight = 427.83 gm | |||
| Iron 26.11 % Fe 37.33 % Fe2O3 | |||
| Phosphorus 7.24 % P 16.59 % P2O5 | |||
| Hydrogen 3.06 % H 27.37 % H2O | |||
| Sulfur 7.50 % S 18.71 % SO3 | |||
| Oxygen 56.10 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Fe3+2(SO4)(PO4)(OH)·6(H2O) | |||
| Valid Species (Pre-IMA) 1837 | |||
| Ansbach, Thuringia, Germany. Link to MinDat.org Location Data. | |||
| From the Greek, diadochos, meaning "successor," presumably in allusion to its secondary origin. | |||
| Destinezite - xtls | |||
Diadochite Image | |||
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Diadochite Crystallography |
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| a:b:c =0.9849:1:0.7526 | |||
| a = 9.57, b = 9.716, c = 7.313, Z = 2; alpha = 98.74°, beta = 107.9°, gamma = 63.86° V = 574.14 Den(Calc)= 2.47 | |||
| Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | |||
| By Intensity(I/Io): 4.35(1), 8.3(0.9), 8.7(0.8), | |||
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Mouse |
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Physical Properties of Diadochite |
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| None | |||
| Yellow, Brown, Yellowish green, Cinnamon brown, Yellowish white. | |||
| 2 - 2.4, Average = 2.2 | |||
| Translucent to Opaque | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Encrustations - Forms crust-like aggregates on matrix. | |||
| Nodular - Tuberose forms having irregular protuberances over the surface. | |||
| Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite). | |||
| 3-3.5 - Calcite-Copper Penny | |||
| Waxy | |||
| yellow | |||
Optical Properties of Diadochite |
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| CI meas= -0.053 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.062 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2571,KPDmeas= 0.2886,KC= 0.2741 |
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| Biaxial (+), a=1.615, b=1.625, g=1.665, bire=0.0500, 2V(Calc)=56, 2V(Meas)=55. Dispersion r < v strong. | |||
Calculated Properties of Diadochite |
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relectron=2.22 gm/cc |
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| Fermion Index = 0.00637 Boson Index = 0.99363 |
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PEDiadochite = 8.42 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Diadochite is Not Radioactive |
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Diadochite Classification |
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| 43.5.2.1 (43)Compound Phosphates, etc. | |||
| (43.5)(Hydrated Compound Anions With Hydroxyl or Halogen) | |||
| (43.5.2)Dana Group | |||
| VII/D.05-20 VII - Phosphates, Arsenates and Vanadates | |||
| VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe | |||
| VII/D.05 - Pitticite - Zykaite series | |||
Other Diadochite Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(AmMin, V 85, p266) OPTIC PROP.(Ford32) | |||
| Links to other databases for Diadochite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 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 Diadochite using: Visit our Advertisers for Diadochite : Translate Diadochite Mineral Data : Ask about Diadochite here : Print or Cut-and-Paste your Diadochite Specimen Label here :
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