Phosphosiderite Mineral Data (original) (raw)
General Phosphosiderite Information
Chemical Formula:
Fe+++PO4•2(H2O)
Composition:
Molecular Weight = 186.85 gm
Iron 29.89 % Fe 42.73 % Fe2O3
Phosphorus 16.58 % P 37.98 % P2O5
Hydrogen 2.16 % H 19.28 % H2O
Oxygen 51.38 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Fe3+(PO4)•2(H2O)
IMA Status:
Valid Species (Pre-IMA) 1890
Locality:
Kalterborn Grube, Eisenfeld, Siegen, Germany Link to MinDat.org Location Data.
Name Origin:
Named after its chemical composition, PHOSPHrous and SIDERos, Iron..
Name Pronunciation:
Phosphosiderite 
Synonym:
ICSD 34007
Metastrengite
PDF 33-666
Phosphosiderite Image
Images:
Images:
Phosphosiderite Crystallography
Axial Ratios:
a:b:c =0.539:1:0.8804
Cell Dimensions:
a = 5.32, b = 9.87, c = 8.69, Z = 4; beta = 90.6° V = 456.27 Den(Calc)= 2.72
Crystal System:
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
X Ray Diffraction:
By Intensity(I/Io): 2.78(1), 4.37(0.8), 4.69(0.8),
Forms:
Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
- Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above
| | Forms:( 1 0 3) ( 0 1 0) ( 1 0 1) ( 1 1 0) ( 0 1 1) ( 0 0 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
| | Moore P B , American Mineralogist , 51 (1966) p.168-176, The crystal structure of metastrengite and its relationship to strengite and, phosphophyllite | | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Phosphosiderite
Cleavage:
{010} Perfect, {001} Distinct
Color:
Colorless, Purple, Pink, Red, Red violet.
Density:
2.76
Diaphaneity:
Transparent to Translucent
Fracture:
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Habit:
Spherical - Spherical, rounded aggregates.
Hardness:
3.5-4 - Copper Penny-Fluorite
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Phosphosiderite
Gladstone-Dale:
CI meas= 0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2641,KPDmeas= 0.2603,KC= 0.2697
Ncalc = 1.73 - 1.74
Optical Data:
Biaxial (-), a=1.692, b=1.725, g=1.738, bire=0.0460, 2V(Calc)=62, 2V(Meas)=62.
Calculated Properties of Phosphosiderite
Electron Density:
Bulk Density (Electron Density)=2.71 gm/cc
note: Specific Gravity of Phosphosiderite =2.72 gm/cc.
Fermion Index:
Fermion Index = 0.0065862806
Boson Index = 0.9934137194
Photoelectric:
PEPhosphosiderite = 9.60 barns/electron
U=PEPhosphosiderite x rElectron Density= 25.99 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Phosphosiderite is Not Radioactive
Phosphosiderite Classification
Dana Class:
40.04.03.02 (40)Hydrated Phosphates, etc
(40.04)where A+++ XO4 � x(H2O)
(40.04.03)Metavariscite group
40.04.03.01 Metavariscite AlPO4•2(H2O) P 21/n 2/m
40.04.03.02 Phosphosiderite FePO4•2(H2O) P 21/n 2/m
40.04.03.03 Kolbeckite ScPO4•2(H2O) P 21/n 2/m
Strunz Class:
08.CD.05 08 - PHOSPHATES, ARSENATES, VANADATES
08.C - Phosphates without Additional Anions, with H2O
08.CD -With only medium-sized cations, RO4:H2O = 1:2
08.CD.05 Kolbeckite ScPO4•2(H2O) P 21/n 2/m
08.CD.05 Metavariscite AlPO4•2(H2O) P 21/n 2/m
08.CD.05 Phosphosiderite FePO4•2(H2O) P 21/n 2/m
Other Phosphosiderite Information
References:
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
See Also:
Links to other databases for Phosphosiderite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST
Search for Phosphosiderite using:
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]
Visit our Advertisers for Phosphosiderite :
A Bijoux Google Search for Phosphosiderite
Adam's Minerals Google Search for Phosphosiderite
Cape Minerals Google Search for Phosphosiderite
Dakota Matrix Minerals Google Search for Phosphosiderite
Excalibur Mineral Corp. Google Search for Phosphosiderite
Exceptional Minerals Google Search for Phosphosiderite
John Betts Fine Minerals Search for Phosphosiderite
McDougall Minerals Google Search for Phosphosiderite
Mineral News Website Link
Rock and Mineral Shows Google Search for Phosphosiderite
Weinrich Minerals, Inc. Google Search for Phosphosiderite
Ask about Phosphosiderite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol
Print or Cut-and-Paste your Phosphosiderite Specimen Label here :
Phosphosiderite
Fe+++PO4•2(H2O)
Dana No: 40.04.03.02 Strunz No: 08.CD.05
Locality:
Notes: