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Retzian-(Nd) Mineral Data

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General Retzian-(Nd) Information

Help on Chemical  Formula: Chemical Formula: Mn2(Nd,Ce,La)(AsO4)(OH)4
Help on Composition: Composition: Molecular Weight = 459.29 gm
   Lanthanum   3.02 %  La    3.55 % La2O3
   Cerium      9.15 %  Ce   10.72 % Ce2O3
   Manganese  23.92 %  Mn   30.89 % MnO
   Arsenic    16.31 %  As   25.02 % As2O5
   Hydrogen    0.88 %  H     7.84 % H2O
   Neodymium  18.84 %  Nd   21.98 % Nd2O3
   Oxygen     27.87 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+2Nd0.6Ce0.3La0.1(AsO4)(OH)4
Help on Environment: Environment: With willemite, calcite, and franklinite
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Sterling Hill mine, Ogdensburg, Sussex Co., NJ, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Anders Jahan Retzius (1742-1821), Swedish naturalist.
Help on Name Pronunciation: Name Pronunciation: Retzian-(Nd) Say RETZIAN-(ND)
Help on Synonym: Synonym: Retzian-(Y)
 

Retzian-(Nd) Image

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  Retzian-(Nd)

Comments: Small crystal fragment of brown-orange retzian-(Nd), mounted on paper.
Location: Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA. Scale: Not Given.
© Jeff Weissman / Photographic Guide to Mineral Species

Retzian-(Nd) Crystallography

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.726(1), 3.534(0.6), 4.89(0.3),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
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I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 1 1 0) ( 0 1 0) ( 1 0 1) ( 0 0 1)

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Physical Properties of Retzian-(Nd)

Help on Color: Color: Pink brown, Reddish brown.
 

Optical Properties of Retzian-(Nd)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1744,KPDmeas= 0.1763,KC= 0.1789
Ncalc = 1.8
 

Calculated Properties of Retzian-(Nd)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.07 gm/cc
note: Specific Gravity of Retzian-(Nd) =4.45 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PERetzian-(Nd) = 186.37 barns/electron
U=PERetzian-(Nd) x relectron= 758.74 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 30,270.82 (Gamma Ray American Petroleum Institute Units)
Concentration of Retzian-(Nd) per GRapi unit = 33.04 (PPM)

Retzian-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Radioactivity from Retzian-(Nd) - weak
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 / 7.54 cm 694,829 1.88E-05 30,270.82 9.95
100 gm / 3.50 cm 69,483 1.88E-06 3,027.08 1.00
10 gm / 1.63 cm 6,948 1.88E-07 302.71 0.10
1 gm / 7.54 mm 695 1.88E-08 30.27 0.01
0.1 gm / 3.50 mm 69 1.88E-09 3.03 0.00
0.01 gm / 1.63 mm 7 1.88E-10 0.30 0.00
0.001 gm / 0.75 mm 1 1.88E-11 0.03 0.00

Weight of pure Retzian-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.45 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 ( 1.55 % Th) From Sum REE Elements (31.02 % REE)
 

Retzian-(Nd) Classification

Help on  Dana Class: Dana Class: 41.03.04.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.03)where (A B)3 (XO4) Zq
  (41.03.04)Retzian Series
 
41.03.04.01 Retzian-(Ce) Mn2Ce(AsO4)(OH)4 Pban 2/m 2/m 2/m
 
41.03.04.02 Retzian-(Nd) Mn2(Nd,Ce,La)(AsO4)(OH)4 Pban 2/m 2/m 2/m
 
41.03.04.03 Retzian-(La) (Mn,Mg)2(La,Ce,Nd)(AsO4)(OH)4 Pban 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.BM.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BM -With medium-sized and large cations, (OH, etc.):RO4 = 4:1
 
08.BM.05 Retzian-(Ce) Mn2Ce(AsO4)(OH)4 Pban 2/m 2/m 2/m
 
08.BM.05 Retzian-(La) (Mn,Mg)2(La,Ce,Nd)(AsO4)(OH)4 Pban 2/m 2/m 2/m
 
08.BM.05 Retzian-(Nd) Mn2(Nd,Ce,La)(AsO4)(OH)4 Pban 2/m 2/m 2/m
 

Other Retzian-(Nd) Information

Help on See Also: See Also: Links to other databases for Retzian-(Nd) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Franklin Minerals(Dunn)
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Retzian-(Nd)

Mn2(Nd,Ce,La)(AsO4)(OH)4
Dana No: 41.03.04.02 Strunz No: 08.BM.05
Locality:

 

Notes:

 

 


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