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Loranskite-(Y) Mineral Data

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General Loranskite-(Y) Information

Help on Chemical  Formula: Chemical Formula: (Y,Ce,Ca)ZrTaO6 (?)
Help on Composition: Composition: Molecular Weight = 464.38 gm
   Calcium     2.59 %  Ca    3.62 % CaO
   Cerium      3.02 %  Ce    3.53 % Ce2O3
   Yttrium     9.57 %  Y    12.16 % Y2O3
   Zirconium  17.68 %  Zr   23.88 % ZrO2
   Tantalum   42.86 %  Ta   52.34 % Ta2O5
   Iron        3.61 %  Fe    4.64 % FeO
   Oxygen     20.67 %  O
             ______        ______ 
             100.00 %      100.17 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Y0.5Ca0.3Fe2+0.3Ce0.1Ta1.1Zr0.9O6
Help on Environment: Environment: An ill-defined mineral of uncertain origin and formula. In a pegmatite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1899
Help on Locality: Locality: Impilaks, Lake Ladoga, Finland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Apollonie Mikhailovich Loranski (1847-1917), inspector and teacher of the Mining Institute, St. Petersburg, Russia.
Help on Name Pronunciation: Name Pronunciation: Loranskite-(Y) + Pronunciation Say LORANSKITE-(Y)
 

Loranskite-(Y) Crystallography

Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
 

Physical Properties of Loranskite-(Y)

Help on Cleavage: Cleavage: None
Help on Color: Color: Brownish black, Green yellow, Yellow, Black.
Help on Density: Density: 4.4 - 4.8, Average = 4.59
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Metamict - Mineral originally crystalline, now amorphous due to radiation damage.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: greenish gray
 

Optical Properties of Loranskite-(Y)

Help on Optical Data: Optical Data: NCalc= 1.79 - from Gladstone-Dale relationship (KC = 0.1715) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Loranskite-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.03 gm/cc
note: Specific Gravity of Loranskite-(Y) =4.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PELoranskite-(Y) = 560.07 barns/electron
U=PELoranskite-(Y) x relectron=2,256.85 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2,819.31 (Gamma Ray American Petroleum Institute Units)
Concentration of Loranskite-(Y) per GRapi unit = 354.70 (PPM)

Estimated Radioactivity from Loranskite-(Y) - 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 / 7.46 cm 67,586 1.83E-06 2,819.31 0.93
100 gm / 3.46 cm 6,759 1.83E-07 281.93 0.09
10 gm / 1.61 cm 676 1.83E-08 28.19 0.01
1 gm / 7.46 mm 68 1.83E-09 2.82 0.00
0.1 gm / 3.46 mm 7 1.83E-10 0.28 0.00
0.01 gm / 1.61 mm 1 1.83E-11 0.03 0.00
0.001 gm / 0.75 mm 0 1.83E-12 0.00 0.00

Weight of pure Loranskite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.60 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 ( 0.15 % Th) From Sum REE Elements ( 3.02 % REE)
 

Loranskite-(Y) Classification

Help on  Dana Class: Dana Class: 08.01.05.01 (08)Multiple Oxides with Nb, Ta, and Ti
  (08.01)where A BO4
  (08.01.05)Dana Group
 
08.01.05.01 Loranskite-(Y) (Y,Ce,Ca)ZrTaO6(?) Unk Ortho
Help on  Strunz Class: Strunz Class: 04.DG.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DG -With large (� medium-sized) cations; chains of edge-sharing octahedra
 
04.DG.05 Fersmite (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 Pcan 2/m 2/m 2/m
 
04.DG.05 Euxenite-(Y) (Y,Ca,Ce)(Nb,Ta,Ti)2O6 Pcan 2/m 2/m 2/m
 
04.DG.05 Kobeite-(Y) (Y,U)(Ti,Nb)2(O,OH)6(?) Cubic Cubic
 
04.DG.05 Loranskite-(Y) (Y,Ce,Ca)ZrTaO6(?) Unk Ortho
 
04.DG.05 Polycrase-(Y) (Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6 Pcan 2/m 2/m 2/m
 
04.DG.05 Tanteuxenite-(Y) (Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6 Pcan 2/m 2/m 2/m
 
04.DG.05 Uranopolycrase (U,Y)(Ti,Nb,Ta)2O6 P bcn 2/m 2/m 2/m
 
04.DG.05 Yttrocrasite-(Y) (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 Unk Ortho
 

Other Loranskite-(Y) Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Loranskite-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Loranskite-(Y) Specimen Label here :

Loranskite-(Y)

(Y,Ce,Ca)ZrTaO6 (?)
Dana No: 08.01.05.01 Strunz No: 04.DG.05
Locality:

 

Notes:

 

 
   
 


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