Mineralogy Database

Ningyoite Mineral Data

Search Webmineral :
  
Advertisment

General Ningyoite Information

Help on Chemical  Formula: Chemical Formula: (U,Ca,Ce)2(PO4)2•1-2(H2O)
Help on Composition: Composition: Molecular Weight = 554.67 gm
   Calcium      4.34 %  Ca    6.07 % CaO
   Cerium       5.05 %  Ce    5.92 % Ce2O3
   Uranium     51.50 %  U    58.42 % UO2
   Phosphorus  11.17 %  P    25.59 % P2O5
   Hydrogen     0.55 %  H     4.87 % H2O
   Oxygen      27.40 %  O
              ______        ______ 
              100.00 %      100.87 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 2(U0.6)2(Ca0.3)2(Ce0.1)(PO4)2•1.5(H2O)
Help on Environment: Environment: Principal uranium mineral, as coatings and filling cavities in a carbonaceous conglomerate
Help on IMA Status: IMA Status: Approved IMA 1959
Help on Locality: Locality: Ningyo-Toge uranium mine, Tottori Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ningyo Pass, Japan, where the mine in which the mineral was first found is located.
Help on Name Pronunciation: Name Pronunciation: Ningyoite + Pronunciation Say NINGYOITE
 

Ningyoite Image

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

  Ningyoite

Comments: Greenish-black fine grained ningyoite masses with minor rock.
Location: Ningyo-Toge Mine, Okayama, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ningyoite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5603:1:0.5272
Help on Cell Dimensions: Cell Dimensions: a = 6.78, b = 12.1, c = 6.38, Z = 3; V = 523.40 Den(Calc)= 5.28
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 222
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.02(1), 2.13(0.8), 2.81(0.8),
 

Physical Properties of Ningyoite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown, Brownish green.
Help on Density: Density: 4.75
Help on Diaphaneity: Diaphaneity: Translucent
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Greasy (Oily)
 

Optical Properties of Ningyoite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.106 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1278,KPDmeas= 0.1421,KC= 0.1431
Ncalc = 1.68 - 1.76
Help on Optical Data: Optical Data: Biaxial (?), b=1.64-1.71
 

Calculated Properties of Ningyoite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.16 gm/cc
note: Specific Gravity of Ningyoite =4.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0038986122
Boson Index = 0.9961013878
Help on Photoelectric: Photoelectric: PENingyoite =1,361.21 barns/electron
U=PENingyoite x relectron=5,665.28 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,850,740.58 (Gamma Ray American Petroleum Institute Units)
Concentration of Ningyoite per GRapi unit = 259.69 (PPB)

Ningyoite 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) 7.90 ± 1.97 grams of pure Ningyoite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 789.89 ±197.47 grams of pure Ningyoite .

Estimated Radioactivity from Ningyoite - 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 / 7.38 cm 92,291,575 2.49E-03 3,850,740.58 1,266.00
100 gm / 3.43 cm 9,229,158 2.49E-04 385,074.06 126.60
10 gm / 1.59 cm 922,916 2.49E-05 38,507.41 12.66
1 gm / 7.38 mm 92,292 2.49E-06 3,850.74 1.27
0.1 gm / 3.43 mm 9,229 2.49E-07 385.07 0.13
0.01 gm / 1.59 mm 923 2.49E-08 38.51 0.01
0.001 gm / 0.74 mm 92 2.49E-09 3.85 0.00

Weight of pure Ningyoite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.75 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
Estimated Thorium Activity ( 0.25 % Th) From Sum REE Elements ( 5.05 % REE)
 

Ningyoite Classification

Help on  Dana Class: Dana Class: 40.04.08.01 (40)Hydrated Phosphates, etc
  (40.04)where A+++ XO4 � x(H2O)
  (40.04.08)Ningyoite Group
 
40.04.08.01 Ningyoite (U,Ca,Ce)2(PO4)2•1-2(H2O) P 222 2 2 2
 
40.04.08.02 Lermontovite U(PO4)(OH)•(H2O)(?) C cca 2/m 2/m 2/m
 
40.04.08.03 Vyacheslavite U(PO4)(OH)•2.5(H2O) C mcm, C mc21, C 2cm Ortho
Help on  Strunz Class: Strunz Class: 08.CJ.80 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CJ -With only large cations
 
08.CJ.80 Ningyoite (U,Ca,Ce)2(PO4)2•1-2(H2O) P 222 2 2 2
 

Other Ningyoite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Ningyoite :
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 Ningyoite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ningyoite :

Ask about Ningyoite 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 Español

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

Ningyoite

(U,Ca,Ce)2(PO4)2•1-2(H2O)
Dana No: 40.04.08.01 Strunz No: 08.CJ.80
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.