Phosphovanadylite Mineral Data (original) (raw)
General Phosphovanadylite Information
Chemical Formula:
(Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]•12(H2O) x~0.66
Composition:
Molecular Weight = 795.71 gm
Potassium 0.49 % K 0.59 % K2O
Barium 6.90 % Ba 7.71 % BaO
Sodium 0.29 % Na 0.39 % Na2O
Calcium 1.01 % Ca 1.41 % CaO
Aluminum 1.70 % Al 3.20 % Al2O3
Vanadium 21.77 % V 38.86 % V2O5
Phosphorus 7.79 % P 17.84 % P2O5
Hydrogen 3.76 % H 33.62 % H2O
Oxygen 56.30 % O
______ ______
100.00 % 103.62 % = TOTAL OXIDE
Empirical Formula:
Ba0.4Ca0.2K0.1Na0.1V5+3.4Al0.5P2O10.3(OH)5.7�12(H2O)
Environment:
Meade Peak Member of the Permian Phosphoria Formation in phosphatic organic-matter-rich mudstone..
IMA Status:
Approved IMA 1996 (Dana # Added)
Locality:
Monsanto's Enoch Valley mine, Soda Springs, Idaho, USA. Link to MinDat.org Location Data.
Name Origin:
Named after its composition of phosphate and the vanadyl (V++++O2)-- group.
Name Pronunciation:
Phosphovanadylite + Pronunciation 
Synonym:
IMA1996-037
Phosphovanadylite Image
Images:
 |
Phosphovanadylite Comments: Scanning electron microscope micrographs showing the cubic habit of phosphovanadylite. (AmMin 83:890). Location: Phosphoria Formation at Monsanto’s Enoch Valley Mine, Soda Springs, Idaho.Scale: Crystal size 40 µm. © American Mineralogist |
|---|
Phosphovanadylite Crystallography
Cell Dimensions:
a = 15.457, Z = 6; V = 3,692.97 Den(Calc)= 2.15
Crystal System:
Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: I 43m
X Ray Diffraction:
By Intensity(I/Io): 3.164(1), 2.582(0.37), 2.445(0.36),
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
| | Medrano M D , Evans H T , Wenk H R , Piper D Z , American Mineralogist , 83 (1998) p.889-895, Phosphovanadylite: A new vanadium phosphate mineral with a zeolite-type, structure | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Phosphovanadylite
Color:
Light greenish blue.
Density:
2.16
Diaphaneity:
Transparent
Habit:
Blocky - Crystal shape tends to be equant (e.g. feldspars).
Habit:
Crystalline - Fine - Occurs as well-formed fine sized crystals.
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Luster:
Vitreous (Glassy)
Streak:
very pale greenish blue
Optical Properties of Phosphovanadylite
Gladstone-Dale:
CI meas= 0.128 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.124 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2633,KPDmeas= 0.262,KC= 0.3004
Ncalc = 1.65
Optical Data:
Isotropic, n=1.566.
Calculated Properties of Phosphovanadylite
Electron Density:
Bulk Density (Electron Density)=2.15 gm/cc
note: Specific Gravity of Phosphovanadylite =2.15 gm/cc.
Fermion Index:
Fermion Index = 0.01
Boson Index = 0.99
Photoelectric:
PEPhosphovanadylite = 32.38 barns/electron
U=PEPhosphovanadylite x relectron= 69.61 barns/cc.
Radioactivity:
GRapi = 7.09 (Gamma Ray American Petroleum Institute Units)
Concentration of Phosphovanadylite per GRapi unit = 14.10 (%)
Estimated Radioactivity from Phosphovanadylite 
- barely detectable
Phosphovanadylite Classification
Dana Class:
42.11.19.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
(42.11)where (AB)4 (XO4)3 Zq � x(H2O)
(42.11.19)Sincosite Group
42.11.19.01 Sincosite Ca(VO)2(PO4)2•5(H2O) P mmm or P 4/nmm Tetra
42.11.19.02 Bariosincosite! Ba(VO)2(PO4)2•4(H2O) P 4/n or P 4/nmm 4/m
42.11.19.03 Phosphovanadylite! (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]•12(H2O)x~0.66 I 43m 4 3m
Strunz Class:
08.DM.20 08 - PHOSPHATES, ARSENATES, VANADATES
08.D - Phosphates, etc
08.DM -With large and medium-sized cations, (OH, etc.):RO4 > 2:1
08.DM.20 Phosphovanadylite! (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]•12(H2O)x~0.66 I 43m 4 3m
Other Phosphovanadylite Information
References:
NAME( AmMin) PHYS. PROP.(Am.Min.,Vol.83,p889-895,1998) OPTIC PROP.(AmMin)
See Also:
Links to other databases for Phosphovanadylite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST
Search for Phosphovanadylite using:
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]
Visit our Advertisers for Phosphovanadylite :
A Bijoux Google Search for Phosphovanadylite
Adam's Minerals Google Search for Phosphovanadylite
Cape Minerals Google Search for Phosphovanadylite
Dakota Matrix Minerals Google Search for Phosphovanadylite
Excalibur Mineral Corp. Google Search for Phosphovanadylite
Exceptional Minerals Google Search for Phosphovanadylite
John Betts Fine Minerals Search for Phosphovanadylite
McDougall Minerals Google Search for Phosphovanadylite
Mineral News Website Link
Rock and Mineral Shows Google Search for Phosphovanadylite
Weinrich Minerals, Inc. Google Search for Phosphovanadylite
Ask about Phosphovanadylite 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 Phosphovanadylite Specimen Label here :
Phosphovanadylite
(Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]•12(H2O) x~0.66
Dana No: 42.11.19.03 Strunz No: 08.DM.20
Locality:
Notes: