Agardite-(Nd) Mineral Data + Say AGARDITE-(ND)


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General Agardite-(Nd) Information
Help on Chemical Formula: Chemical Formula: (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6·3(H2O)
Help on Composition: Composition: Molecular Weight = 1,063.17 gm
   Calcium     0.38 %  Ca    0.53 % CaO
   Lanthanum   1.31 %  La    1.53 % La2O3
   Yttrium     0.84 %  Y     1.06 % Y2O3
   Copper     34.07 %  Cu   42.65 % CuO
   Arsenic    21.14 %  As   32.43 % As2O5
   Hydrogen    1.36 %  H    12.12 % H2O
   Lead        5.85 %  Pb    6.30 % PbO
   Neodymium   2.71 %  Nd    3.16 % Nd2O3
   Oxygen     32.35 %  O
             ______        ______ 
             100.00 %       99.77 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb0.3Nd0.2Y0.1La0.1Ca0.1Cu5.7(AsO4)3(OH)4.7·4.8(H2O)
Help on IMA Status: IMA Status: Not Approved IMA (Dana # Added)
Help on Locality: Locality: Wittichen, Black Forest, Baden-Württemberg, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France.
 

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Agardite-(Nd) Crystallography
Help on Crystal System: Crystal System: Hexagonal - DipyramidalH-M Symbol (6/m)
 

Physical Properties of Agardite-(Nd)

Help on Color: Color: Grass green.
Help on Density: Density: 3.72
Help on Diaphaniety: Diaphaniety: Transparent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: greenish white
 

Optical Properties of Agardite-(Nd)

Help on Optical Data: Optical Data: NCalc= 1.68 - from Gladstone-Dale relationship (KC = 0.1841) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Agardite-(Nd)

Help on Electron Density: Electron Density:

relectron=3.49 gm/cc
note: rAgardite-(Nd) =3.72 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.01865
Boson Index = 0.98135
Help on Photoelectric: Photoelectric:

PEAgardite-(Nd) = 147.80 barns/electron
U=PEAgardite-(Nd) x relectron= 515.91 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,023.43 (Gamma Ray American Petroleum Institute Units)

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

Estimated Radioactivity from Agardite-(Nd) - mild
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 / 8.01 cm 90,046 2.43E-06 4,023.43 1.32
100 gm / 3.72 cm 9,005 2.43E-07 402.34 0.13
10 gm / 1.73 cm 900 2.43E-08 40.23 0.01
1 gm / 8.01 mm 90 2.43E-09 4.02 0.00
0.1 gm / 3.72 mm 9 2.43E-10 0.40 0.00
0.01 gm / 1.73 mm 1 2.43E-11 0.04 0.00
0.001 gm / 0.80 mm 0 2.43E-12 0.00 0.00

Weight of pure Agardite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.72 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 ( 0.20 % Th) From Sum REE Elements ( 4.02 % REE)
 

Agardite-(Nd) Classification
Help on Dana Class: Dana Class: 42.5.1.2b (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.5)where (A)2 (XO4) Zq · x(H2O)
  (42.5.1)Mixite group (Arsenate Series)
 
42.5.1.1 Mixite BiCu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
42.5.1.2 Agardite-(Y) (Y,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
42.5.1.2a Agardite-(La)! (La,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
42.5.1.2b Agardite-(Nd) ! (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6·3(H2O) 6/m
 
42.5.1.2c Agardite-(Dy)! (Dy,La,Ca)Cu6(AsO4)3(OH)6·3(H2O) 6/m
 
42.5.1.2d Agardite-(Ca)! CaCu6(AsO4)3(OH)6·3(H2O) 6/m
 
42.5.1.2e Agardite-(Ce)! (Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
42.5.1.3 Goudeyite (Al,Y)Cu6(AsO4)3(OH)6·3(H2O) Unk Hex
 
42.5.1.4 Zalesiite! (Ca,Y)Cu6[(AsO4)2(AsO3OH)(OH)6]·3(H2O) P 63/m 6/m
 
42.5.1.6 IMA2003-031a! (Pb,REE,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
Help on Strunz Class: Strunz Class: VII/D.53-70 VII - Phosphates, Arsenates and Vanadates
  VII/D - Water-bearing phosphates with unfamiliar anions, cations of very big and medium size: Al, Mg and Ca, Na, K
  VII/D.53 - Mixite - Agardite group
 
VII/D.53-10 Petersite-(Y) (Y,Ce,Nd,Ca)Cu6(PO4)3(OH)6·3(H2O) P 63/m 6/m
 
VII/D.53-20 Goudeyite (Al,Y)Cu6(AsO4)3(OH)6·3(H2O) Unk Hex
 
VII/D.53-30 Zalesiite! (Ca,Y)Cu6[(AsO4)2(AsO3OH)(OH)6]·3(H2O) P 63/m 6/m
 
VII/D.53-40 Agardite-(Y) (Y,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
VII/D.53-50 Agardite-(La)! (La,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
VII/D.53-60 Agardite-(Ce)! (Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
VII/D.53-70 Agardite-(Nd) (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6·3(H2O) 6/m
 
VII/D.53-80 Agardite-(Dy)! (Dy,La,Ca)Cu6(AsO4)3(OH)6·3(H2O) 6/m
 
VII/D.53-90 Mixite BiCu6(AsO4)3(OH)6·3(H2O) P 63/m 6/m
 
VII/D.53-95 Juanitaite! (Cu,Ca,Fe)10Bi(AsO4)4(OH)11·2(H2O) P 41/nnm 4/m 2/m 2/m
 
VII/D.53-100 Mrazekite Bi2Cu3(PO4)2O2(OH)2·2(H2O) P 21/n 2/m
 

Other Agardite-(Nd) Information
Help on References: References: NAME( Dana8) PHYS. PROP.(AmMin, Vol 88, p 475)
Help on See Also: See Also: Links to other databases for Agardite-(Nd) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris

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Print or Cut-and-Paste your Agardite-(Nd) Specimen Label here :

Agardite-(Nd)

(Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6·3(H2O)
Dana No: 42.5.1.2b Strunz No: VII/D.53-70
Locality:

 

Notes:

 
 
   
 
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