Mineralogy Database

Yingjiangite Mineral Data

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General Yingjiangite Information

Help on Chemical  Formula: Chemical Formula: (K2,Ca)(UO2)7(PO4)4(OH)6•6(H2O)
Help on Composition: Composition: Molecular Weight = 2,607.53 gm
   Potassium    4.50 %  K     5.42 % K2O
   Calcium      0.38 %  Ca    0.54 % CaO
   Uranium     63.90 %  U    72.49 % UO2
   Phosphorus   4.75 %  P    10.89 % P2O5
   Hydrogen     0.70 %  H     6.22 % H2O
   Oxygen      25.77 %  O
              ______        ______ 
              100.00 %       95.55 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K3Ca0.25(UO2)7(PO4)4(OH)6•6(H2O)
Help on Environment: Environment: Secondary product in the oxidzed zone containing uraninite and uranothorite.
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Tongbiguan village, Yingiang County, Yunnan Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Yingjiangite + Pronunciation Say YINGJIANGITE
Help on Synonym: Synonym: IMA1989-001

Yingjiangite Image

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Comments: Thin coating of yellow yingjiangite on matrix.
Location: Kladaske Mine, Erzgeborge, Czech Republi. Scale: Picture size 1.5 cm.
© John Veevaert

Yingjiangite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9014:1:0.7858
Help on Cell Dimensions: Cell Dimensions: a = 15.707, b = 17.424, c = 13.692, Z = 4; V = 3,747.21 Den(Calc)= 4.62
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Bmmb
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.89(1), 3.94(0.5), 3.15(0.29),

Physical Properties of Yingjiangite

Help on Color: Color: Yellow, Golden yellow.
Help on Density: Density: 4.54
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luminescence: Luminescence: Fluorescent, Short UV=weak yellow green, Long UV=weak yellow green.
Help on Luster: Luster: Subadamantine
Help on Streak: Streak: yellow

Optical Properties of Yingjiangite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.213 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.192 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1494,KPDmeas= 0.1521,KC= 0.1253
Ncalc = 1.57 - 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.669, b=1.692, g=1.71, bire=0.0410, 2V(Calc)=80, 2V(Meas)=83.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): light yellow.
Help on Pleochroism (z): Pleochroism (z): yellow.

Calculated Properties of Yingjiangite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.97 gm/cc
note: Specific Gravity of Yingjiangite =4.62 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0047361028
Boson Index = 0.9952638972
Help on Photoelectric: Photoelectric: PEYingjiangite =1,688.43 barns/electron
U=PEYingjiangite x relectron=6,701.06 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,679,034.10 (Gamma Ray American Petroleum Institute Units)
Concentration of Yingjiangite per GRapi unit = 213.72 (PPB)

Yingjiangite 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) 6.50 ± 1.63 grams of pure Yingjiangite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 650.06 ±162.52 grams of pure Yingjiangite .

Estimated Radioactivity from Yingjiangite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 7.45 cm 114,381,743 3.09E-03 4,679,034.10 1,538.31
100 gm / 3.46 cm 11,438,174 3.09E-04 467,903.41 153.83
10 gm / 1.60 cm 1,143,817 3.09E-05 46,790.34 15.38
1 gm / 7.45 mm 114,382 3.09E-06 4,679.03 1.54
0.1 gm / 3.46 mm 11,438 3.09E-07 467.90 0.15
0.01 gm / 1.60 mm 1,144 3.09E-08 46.79 0.02
0.001 gm / 0.74 mm 114 3.09E-09 4.68 0.00

Weight of pure Yingjiangite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.62 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

Yingjiangite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.06)where (AB)2 (XO4) Zq � x(H2O)
  (42.06.12)Dana Group Yingjiangite (K2,Ca)(UO2)7(PO4)4(OH)6•6(H2O) Bmmb 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.EC.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EC -UO2:RO4 = 3:2
08.EC.10 Arsenuranylite Ca(UO2)4(AsO4)2(OH)4•6(H2O) Bmmb 2/m 2/m 2/m
08.EC.10 Dewindtite Pb3[H(UO2)3O2(PO4)2]2•12(H2O) Bmmb 2/m 2/m 2/m
08.EC.10 Kivuite? (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8•7(H2O) Unk Ortho
08.EC.10 Renardite Pb(UO2)4(PO4)2(OH)4•7(H2O) Bmmb 2/m 2/m 2/m
08.EC.10 Phosphuranylite KCa(H3O)3(UO2)7(PO4)4O4•8(H2O) C mcm 2/m 2/m 2/m
08.EC.10 Yingjiangite (K2,Ca)(UO2)7(PO4)4(OH)6•6(H2O) Bmmb 2/m 2/m 2/m

Other Yingjiangite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.76,p1731,1991) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Yingjiangite :
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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Dana No: Strunz No: 08.EC.10





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