Parsonsite Mineral Data

Parsonsite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Dakota Matrix
[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery]
Dakota Matrix Minerals
Updated weekly, for the collector, educator, and researcher since 1996
Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome


General Parsonsite Information

Help on Chemical Formula: Chemical Formula: Pb2(UO2)(PO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 910.40 gm
   Uranium     26.15 %  U    29.66 % UO2
   Phosphorus   6.80 %  P    15.59 % P2O5
   Hydrogen     0.44 %  H     3.96 % H2O
   Lead        45.52 %  Pb   49.03 % PbO
   Oxygen      21.09 %  O
              ______        ______ 
              100.00 %       98.24 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2(UO2)(PO4)2•2(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1923
Help on Locality: Locality: Kaslol, Shava, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Arthur Leonard Parsons (1873-1957), mineralogist, University of Toronto, Canada.
Help on Name Pronunciation: Name Pronunciation: Parsonsite + Pronunciation Say PARSONSITE
Help on Synonym: Synonym: ICSD 89832
  PDF 12-259
 

Parsonsite Image

Click Here for Larger Parsonsite Image in a New Browser Window Images:
Click Here for Larger Parsonsite Image

Parsonsite

Comments: Bright yellow parsonsite crystals on matrix.
Location: La Chaux, France. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Parsonsite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.6589:1:0.6423
Help on Cell Dimensions: Cell Dimensions: a = 6.842, b = 10.383, c = 6.67, Z = 2; alpha = 101.26°, beta = 98.174°, gamma = 86.378° V = 459.08 Den(Calc)= 6.59
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.253(1), 3.283(1), 4.233(0.65),
Click Here for Large Parsonsite Structure Window 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


Burns P C , American Mineralogist , 85 (2000) p.801-805, A new uranyl phosphate chain in the structure of parsonsite

View Additional jPOWD Structure files for Parsonsite
[1]
 

Physical Properties of Parsonsite

Help on Cleavage: Cleavage: {010} Indistinct
Help on Color: Color: Brown, Greenish brown, Yellow, Yellow brown, Light yellow.
Help on Density: Density: 5.72 - 6.29, Average = 6
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Subadamantine
Help on Streak: Streak: white
 

Optical Properties of Parsonsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.071 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.023 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1337,KPDmeas= 0.1465,KC= 0.1369
Ncalc = 1.78 - 1.9
Help on Optical Data: Optical Data: Biaxial (-), a=1.87, g=1.89, bire=0.0200, 2V(Meas)=11-26.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
Help on Pleochroism (z): Pleochroism (z): none.
 

Calculated Properties of Parsonsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.58 gm/cc
note: Specific Gravity of Parsonsite =6.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.1
Boson Index = 0.9
Help on Photoelectric: Photoelectric: PEParsonsite =1,523.92 barns/electron
U=PEParsonsite x relectron=8,503.03 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 1,889,797.59 (Gamma Ray American Petroleum Institute Units)
Concentration of Parsonsite per GRapi unit = 529.16 (PPB)

Parsonsite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 16.10 ± 4.02 grams of pure Parsonsite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1609.5 ±402.38 grams of pure Parsonsite .

Estimated Radioactivity from Parsonsite - very strong
Specimen
Size
Weight/Volume
(Sphere) *		 Calculated
Activity
Bequerols
(Bq)		 Calculated
Activity
Curies (Ci)		 Estimated
Activity
GR(api)		 Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 6.62 cm 46,800,447 1.26E-03 1,889,797.59 621.30
100 gm / 3.07 cm 4,680,045 1.26E-04 188,979.76 62.13
10 gm / 1.43 cm 468,004 1.26E-05 18,897.98 6.21
1 gm / 6.62 mm 46,800 1.26E-06 1,889.80 0.62
0.1 gm / 3.07 mm 4,680 1.26E-07 188.98 0.06
0.01 gm / 1.43 mm 468 1.26E-08 18.90 0.01
0.001 gm / 0.66 mm 47 1.26E-09 1.89 0.00

Weight of pure Parsonsite in grams (gm) and Calculated Diameter of a Sphere with a Density of 6.58 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
 

Parsonsite Classification
Help on Dana Class: Dana Class: 40.02a.31.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++
  (40.02a.31)Dana Group
 
40.02a.31.01 Parsonsite Pb2(UO2)(PO4)2•2(H2O) P1 1
Help on Strunz Class: Strunz Class: 08.EA.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EA -UO2:RO4 = 1:2
 
08.EA.10 Hallimondite Pb2(UO2)(AsO4)2 P1 1
 
08.EA.10 Parsonsite Pb2(UO2)(PO4)2•2(H2O) P1 1
 

Other Parsonsite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Parsonsite :
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 - Uranium Minerals

Search for Parsonsite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Parsonsite :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Parsonsite Mineral Data :

Ask about Parsonsite 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 Espaņol

Print or Cut-and-Paste your Parsonsite Specimen Label here :

Parsonsite

Pb2(UO2)(PO4)2•2(H2O)
Dana No: 40.02a.31.01 Strunz No: 08.EA.10
Locality:

 

Notes: