Mineralogy Database

Xiangjiangite Mineral Data

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General Xiangjiangite Information

Help on Chemical  Formula: Chemical Formula: (Fe+++,Al)(UO2)4(PO4)2(SO4)2(OH)•22(H2O)
Help on Composition: Composition: Molecular Weight = 1,916.94 gm
   Uranium     49.67 %  U    56.35 % UO2
   Aluminum     0.70 %  Al    1.33 % Al2O3
   Iron         1.46 %  Fe    2.08 % Fe2O3
   Phosphorus   3.23 %  P     7.40 % P2O5
   Hydrogen     2.37 %  H    21.15 % H2O
   Sulfur       3.35 %  S     8.35 % SO3
   Oxygen      39.23 %  O
              ______        ______ 
              100.00 %       96.66 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+0.5Al0.5(UO2)4(PO4)2(SO4)2(OH)�22(H2O)
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Xiangjiang River, Hunan, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Name Pronunciation: Name Pronunciation: Xiangjiangite + Pronunciation Say XIANGJIANGITE
 

Xiangjiangite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9661:1:1.8335
Help on Cell Dimensions: Cell Dimensions: a = 12.54, b = 12.98, c = 23.8, Z = 4; beta = 108.6° V = 3,671.57 Den(Calc)= 3.47
Help on Crystal System: Crystal System: Monoclinic Space Group: C 2/c or Cc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 11.11(1), 3.29(0.8), 3.74(0.8),
 

Physical Properties of Xiangjiangite

Help on Color: Color: Yellow, Bright yellow.
Help on Density: Density: 2.9 - 3.1, Average = 3
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 1-2 - Between Talc and Gypsum
Help on Luster: Luster: Silky
Help on Streak: Streak: light yellow
 

Optical Properties of Xiangjiangite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.157 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1659,KPDmeas= 0.1919,KC= 0.1659
Ncalc = 1.48 - 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.558, b=1.576, g=1.593, bire=0.0350, 2V(Calc)=86, 2V(Meas)=87.
Help on Pleochroism (x): Pleochroism (x): yellow.
Help on Pleochroism (y): Pleochroism (y): yellow.
Help on Pleochroism (z): Pleochroism (z): weak yellow.
 

Calculated Properties of Xiangjiangite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.15 gm/cc
note: Specific Gravity of Xiangjiangite =3.47 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0043277083
Boson Index = 0.9956722917
Help on Photoelectric: Photoelectric: PEXiangjiangite =1,241.69 barns/electron
U=PEXiangjiangite x relectron=3,913.21 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,845,084.01 (Gamma Ray American Petroleum Institute Units)
Concentration of Xiangjiangite per GRapi unit = 260.07 (PPB)

Xiangjiangite 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) 7.91 ± 1.98 grams of pure Xiangjiangite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 791.05 ±197.76 grams of pure Xiangjiangite .

Estimated Radioactivity from Xiangjiangite - 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 / 8.20 cm 88,906,709 2.40E-03 3,845,084.01 1,264.14
100 gm / 3.80 cm 8,890,671 2.40E-04 384,508.40 126.41
10 gm / 1.77 cm 889,067 2.40E-05 38,450.84 12.64
1 gm / 8.20 mm 88,907 2.40E-06 3,845.08 1.26
0.1 gm / 3.80 mm 8,891 2.40E-07 384.51 0.13
0.01 gm / 1.77 mm 889 2.40E-08 38.45 0.01
0.001 gm / 0.82 mm 89 2.40E-09 3.85 0.00

Weight of pure Xiangjiangite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.47 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
 

Xiangjiangite Classification

Help on  Dana Class: Dana Class: 43.05.06.01 (43)Compound Phosphates, etc.
  (43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.05.06)Dana Group
 
43.05.06.01 Xiangjiangite (Fe,Al)(UO2)4(PO4)2(SO4)2(OH)•22(H2O) C 2/c or Cc Mono
Help on  Strunz Class: Strunz Class: 08.EB.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EB -UO2:RO4 = 1:1
 
08.EB.05 Autunite Ca(UO2)2(PO4)2•10-12(H2O) I 4/mmm 4/m 2/m 2/m
 
08.EB.05 Heinrichite Ba(UO2)2(AsO4)2•10-12(H2O) P 2/c 2/m
 
08.EB.05 Kahlerite Fe(UO2)2(AsO4)2•10-12(H2O) P 41/n 4/m
 
08.EB.05 Uranocircite Ba(UO2)2(PO4)2•12(H2O) P 4/nnc 4/m 2/m 2/m
 
08.EB.05 Novacekite Mg(UO2)2(AsO4)2•12(H2O) P 41/n 4/m
 
08.EB.05 Saleeite Mg(UO2)2(PO4)2•10(H2O) I 4/mmm 4/m 2/m 2/m
 
08.EB.05 Xiangjiangite (Fe,Al)(UO2)4(PO4)2(SO4)2(OH)•22(H2O) C 2/c or Cc Mono
 
08.EB.05 Torbernite Cu(UO2)2(PO4)2•8-12(H2O) I 4/mmm 4/m 2/m 2/m
 
08.EB.05 Uranospinite Ca(UO2)2(AsO4)2•10(H2O) P nma 2/m 2/m 2/m
 
08.EB.05 Zeunerite Cu(UO2)2(AsO4)2•10-16(H2O) P 4/nnc 4/m 2/m 2/m
 
08.EB.05 Metarauchite! Ni(UO2)2(AsO4)2•8H2O P1 1
 

Other Xiangjiangite 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 Xiangjiangite :
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

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

Xiangjiangite

(Fe+++,Al)(UO2)4(PO4)2(SO4)2(OH)•22(H2O)
Dana No: 43.05.06.01 Strunz No: 08.EB.05
Locality:

 

Notes:

 

 
   
 


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