|
Dittmarite Mineral Data + |
General Dittmarite Information |
|||
| (NH4)Mg(PO4)·(H2O) | |||
| Molecular Weight = 155.33 gm | |||
| Magnesium 15.65 % Mg 25.95 % MgO | |||
| Phosphorus 19.94 % P 45.69 % P2O5 | |||
| Hydrogen 2.60 % H - % Calc as (NH4)2O | |||
| Hydrogen 1.30 % H 11.60 % H2O | |||
| Nitrogen 9.02 % N 16.76 % (NH4)2O | |||
| Oxygen 51.50 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| (NH4)Mg(PO4)·(H2O) | |||
| Valid Species (Pre-IMA) 1887 | |||
| Link to MinDat.org Location Data. | |||
Dittmarite Image | |||
|
|
|
||
Dittmarite Crystallography |
|||
| a:b:c =0.6401:1:0.5467 | |||
| a = 5.606, b = 8.758, c = 4.788, Z = 2; V = 235.08 Den(Calc)= 2.19 | |||
| Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P mn21 | |||
| By Intensity(I/Io): 8.77(1), 2.8(0.5), 2.92(0.4), | |||
Physical Properties of Dittmarite |
|||
| [???] Perfect | |||
| Colorless. | |||
| 2.19 | |||
| Transparent | |||
| 5 - Apatite | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Dittmarite |
|||
| CI meas= -0.469 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.469 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2571,KPDmeas= 0.2571,KC= 0.1749 |
|||
| Biaxial (-), a=1.549, b=1.569, g=1.571, bire=0.0220, 2V(Calc)=34, 2V(Meas)=40. | |||
Calculated Properties of Dittmarite |
|||
relectron=2.26 gm/cc |
|||
| Fermion Index = 0.10574 Boson Index = 0.89426 |
|||
PEDittmarite = 1.34 barns/electron |
|||
| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Dittmarite is Not Radioactive |
|||
Dittmarite Classification |
|||
| 40.1.2.1 (40)Hydrated Phosphates, etc | |||
| (40.1)where A++ B++ (XO4) · x(H2O) | |||
| (40.1.2)Dana Group | |||
| VII/C.23-20 VII - Phosphates, Arsenates and Vanadates | |||
| VII/C - Water-bearing phosphates without unfamiliar anions, cations of medium and big size: Fe, Mn, Zn, Mg and Ca, (NH4)1+ | |||
| VII/C.23 - Struvite - Mundrabillaite series | |||
Other Dittmarite Information |
|||
| PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Dittmarite : 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 Dittmarite using: Visit our Advertisers for Dittmarite : 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 Dittmarite Mineral Data : Ask about Dittmarite here : Print or Cut-and-Paste your Dittmarite Specimen Label here :
|
|||