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Agardite-(Dy) Mineral Data

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General Agardite-(Dy) Information

Help on Chemical  Formula: Chemical Formula: (Dy,La,Ca)Cu6(AsO4)3(OH)6•3(H2O)
Help on Composition: Composition: Molecular Weight = 1,083.41 gm
   Calcium      0.37 %  Ca    0.52 % CaO
   Lanthanum    2.56 %  La    3.01 % La2O3
   Dysprosium   9.00 %  Dy   10.33 % Dy2O3
   Copper      35.19 %  Cu   44.05 % CuO
   Arsenic     20.75 %  As   31.82 % As2O5
   Hydrogen     1.12 %  H     9.98 % H2O
   Oxygen      31.01 %  O
              ______        ______ 
              100.00 %       99.70 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Dy0.6La0.2Ca0.1Cu6(AsO4)3(OH)6•3(H2O)
Help on IMA Status: IMA Status: Not Approved IMA (Dana # Added)
Help on Locality: Locality: 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.
Help on Name Pronunciation: Name Pronunciation: Agardite-(Dy) Say AGARDITE-(DY)
 

Agardite-(Dy) Crystallography

Help on Crystal System: Crystal System: Hexagonal - Dipyramidal H-M Symbol (6/m)
 

Physical Properties of Agardite-(Dy)

Help on Color: Color: Grass green.
Help on Density: Density: 3.72
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: greenish white
 

Optical Properties of Agardite-(Dy)

Help on Optical Data: Optical Data: NCalc= 1.66 - from Gladstone-Dale relationship (KC = 0.1778) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Agardite-(Dy)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.47 gm/cc
note: Specific Gravity of Agardite-(Dy) =3.72 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEAgardite-(Dy) = 111.61 barns/electron
U=PEAgardite-(Dy) x relectron= 387.81 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 11,521.46 (Gamma Ray American Petroleum Institute Units)
Concentration of Agardite-(Dy) per GRapi unit = 86.79 (PPM)

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

Estimated Radioactivity from Agardite-(Dy) - 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 / 8.01 cm 259,024 7.00E-06 11,521.46 3.79
100 gm / 3.72 cm 25,902 7.00E-07 1,152.15 0.38
10 gm / 1.73 cm 2,590 7.00E-08 115.21 0.04
1 gm / 8.01 mm 259 7.00E-09 11.52 0.00
0.1 gm / 3.72 mm 26 7.00E-10 1.15 0.00
0.01 gm / 1.73 mm 3 7.00E-11 0.12 0.00
0.001 gm / 0.80 mm 0 7.00E-12 0.01 0.00

Weight of pure Agardite-(Dy) 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 ( 0.58 % Th) From Sum REE Elements (11.56 % REE)
 

Agardite-(Dy) Classification

Help on  Dana Class: Dana Class: 42.05.01.02c (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.05)where (A)2 (XO4) Zq � x(H2O)
  (42.05.01)Mixite group (Arsenate Series)
 
42.05.01.01 Mixite BiCu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
42.05.01.02 Agardite-(Y) (Y,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
42.05.01.02a Agardite-(La)! (La,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
42.05.01.02b Agardite-(Nd)! (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6•3(H2O) 6/m
 
42.05.01.02c Agardite-(Dy)! (Dy,La,Ca)Cu6(AsO4)3(OH)6•3(H2O) 6/m
 
42.05.01.02d Agardite-(Ca)! CaCu6(AsO4)3(OH)6•3(H2O) 6/m
 
42.05.01.02e Agardite-(Ce)! (Ce,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
42.05.01.03 Goudeyite (Al,Y)Cu6(AsO4)3(OH)6•3(H2O) Unk Hex
 
42.05.01.04 Zalesiite! (Ca,Y)Cu6[(AsO4)2(AsO3OH)(OH)6]•3(H2O) P 63/m 6/m
 
42.05.01.06 Plumboagardite! (Pb,REE,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
Help on  Strunz Class: Strunz Class: 08.DL.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DL -With large and medium-sized cations, (OH, etc.):RO4 = 2:1
 
08.DL.15 Agardite-(Dy)! (Dy,La,Ca)Cu6(AsO4)3(OH)6•3(H2O) 6/m
 
08.DL.15 Agardite-(Ca)! CaCu6(AsO4)3(OH)6•3(H2O) 6/m
 
08.DL.15 Agardite-(Ce)! (Ce,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
08.DL.15 Agardite-(La)! (La,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
08.DL.15 Agardite-(Nd)! (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6•3(H2O) 6/m
 
08.DL.15 Agardite-(Y) (Y,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
08.DL.15 Goudeyite (Al,Y)Cu6(AsO4)3(OH)6•3(H2O) Unk Hex
 
08.DL.15 Zalesiite! (Ca,Y)Cu6[(AsO4)2(AsO3OH)(OH)6]•3(H2O) P 63/m 6/m
 
08.DL.15 Mixite BiCu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 
08.DL.15 Petersite-(Y) (Y,Ce,Nd,Ca)Cu6(PO4)3(OH)6•3(H2O) P 63/m 6/m
 
08.DL.15 Calciopetersite! CaCu6[(PO4)2(PO3OH)(OH)6]•3(H2O) P 63/m 6/m
 
08.DL.15 Plumboagardite! (Pb,REE,Ca)Cu6(AsO4)3(OH)6•3(H2O) P 63/m 6/m
 

Other Agardite-(Dy) Information

Help on References: References: NAME( Dana8)
Help on See Also: See Also: Links to other databases for Agardite-(Dy) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

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

Agardite-(Dy)

(Dy,La,Ca)Cu6(AsO4)3(OH)6•3(H2O)
Dana No: 42.05.01.02c Strunz No: 08.DL.15
Locality:

 

Notes:

 

 
   
 


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