Bastnasite-(La) Mineral Data + Say BASTNASITE-(LA)


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General Bastnasite-(La) Information
Help on Chemical Formula: Chemical Formula: La(CO3)F
Help on Composition: Composition: Molecular Weight = 217.91 gm
   Lanthanum  63.74 %  La   74.76 % La2O3
   Carbon      5.51 %  C    20.20 % CO2
   Oxygen     22.03 %  O
   Fluorine    8.72 %  F     8.72 % F
                -   %  F    -3.67 % -O=F2
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: La(CO3)F
Help on IMA Status: IMA Status: Approved IMA 1966
Help on Locality: Locality: Gallinas Mountains, New Mexico, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality Bastnas Mine, Riddarhyttan, Vastmanland, Sweden.
Help on Synonym: Synonym: Hamartite
 

Bastnasite-(La) Image

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Bastnasite-(La)

Comments: Orange, hexagonal crystal of bastn?site-(La).
Location: Red Cloud mines, Gallinas Mountains, Lincoln County, New Mexico, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bastnasite-(La) Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.37145
Help on Cell Dimensions: Cell Dimensions: a = 7.118, c = 9.762, Z = 6; V = 428.34 Den(Calc)= 5.07
Help on Crystal System: Crystal System: Hexagonal - Ditrigonal DipyramidalH-M Symbol (6 m2) Space Group: P 62c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.88(1), 3.56(0.7), 4.88(0.4),
 

Physical Properties of Bastnasite-(La)

Help on Cleavage: Cleavage: [1011] Imperfect, [0001] Indistinct
Help on Color: Color: Yellow, Reddish brown.
Help on Density: Density: 4.95 - 5, Average = 4.97
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 4-5 - Fluorite-Apatite
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white
 

Optical Properties of Bastnasite-(La)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.038 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1514,KPDmeas= 0.1543,KC= 0.1574
Help on Optical Data: Optical Data: Uniaxial (+), w=1.717, e=1.818, bire=0.1010.
 

Calculated Properties of Bastnasite-(La)

Help on Electron Density: Electron Density:

relectron=4.38 gm/cc
note: rBastnasite-(La) =4.98 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00128
Boson Index = 0.99872
Help on Photoelectric: Photoelectric:

PEBastnasite-(La) = 311.14 barns/electron
U=PEBastnasite-(La) x relectron=1,363.84 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 59,907.70 (Gamma Ray American Petroleum Institute Units)

Bastnasite-(La) 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) 507.73 ±126.93 grams of pure Bastnasite-(La) .

Estimated Radioactivity from Bastnasite-(La) - 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 / 7.27 cm 1,427,855 3.86E-05 59,907.70 19.70
100 gm / 3.37 cm 142,786 3.86E-06 5,990.77 1.97
10 gm / 1.57 cm 14,279 3.86E-07 599.08 0.20
1 gm / 7.27 mm 1,428 3.86E-08 59.91 0.02
0.1 gm / 3.37 mm 143 3.86E-09 5.99 0.00
0.01 gm / 1.57 mm 14 3.86E-10 0.60 0.00
0.001 gm / 0.73 mm 1 3.86E-11 0.06 0.00

Weight of pure Bastnasite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.98 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 ( 3.19 % Th) From Sum REE Elements (63.74 % REE)
 

Bastnasite-(La) Classification
Help on Dana Class: Dana Class: 16a.1.1.2 (16a)Carbonates - Hydroxyl or Halogen
  (16a.1)in the Bastnasite/Shynchysite/Parasite Groups
  (16a.1.1)Bastnasite Subgroup
 
16a.1.1.1 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2
 
16a.1.1.2 Bastnasite-(La) La(CO3)F P 62c 6 m2
 
16a.1.1.3 Bastnasite-(Y) Y(CO3)F P 62c 6 m2
Help on Strunz Class: Strunz Class: V/C.07-20 V - Nitrates, Carbonates and Borates
  V/C - Waterfree carbonates with unfamiliar anions
  V/C.07 - Bastnäsite-(Y) - Mineevite-(Y) series
 
V/C.07-10 Bastnasite-(Y) Y(CO3)F P 62c 6 m2
 
V/C.07-20 Bastnasite-(La) La(CO3)F P 62c 6 m2
 
V/C.07-30 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2
 
V/C.07-40 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2
 
V/C.07-50 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2
 
V/C.07-60 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2
 
V/C.07-61 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-62 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-64 Horvathite-(Y)! NaY(CO3)F2 Pmcn 2/m 2/m 2/m
 
V/C.07-70 Parisite-(Ce) Ca(Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-80 Parisite-(Nd) Ca(Nd,Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-90 Rontgenite-(Ce) Ca2(Ce,La)3(CO3)5F3 R 3 3
 
V/C.07-100 Synchysite-(Y) CaY(CO3)2F C 2/c 2/m
 
V/C.07-110 Synchysite-(Ce) CaCe(CO3)2F C 2/c 2/m
 
V/C.07-120 Synchysite-(Nd) CaNd(CO3)2F Unk Ortho
 
V/C.07-130 Huanghoite-(Ce) BaCe(CO3)2F R 3m 3 2/m
 
V/C.07-140 Cebaite-(Ce) Ba3Ce2(CO3)5F2 C 2/m or C 2 Mono
 
V/C.07-150 Cebaite-(Nd)! Ba3(Nd,Ce)2(CO3)5F2 Unk Mono
 
V/C.07-154 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m
 
V/C.07-155 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-160 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-170 Cordylite-(Ce) Ba(Ce,La)2(CO3)3F2 P 63/mmc 6/m 2/m 2/m
 
V/C.07-175 Lukechangite-(Ce)! Na3Ce2(CO3)4F P 63/mmc 6/m 2/m 2/m
 
V/C.07-190 Mineevite-(Y) Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2 P 63/m 6/m
 
V/C.07-200 Reederite-(Y)! Na15Y2(CO3)9(SO3F)Cl P 6 6
 
V/C.07-210 Micheelsenite! (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O) P 63 6
 

Other Bastnasite-(La) Information
Help on References: References: NAME( Ford32) PHYS. PROP.(Bull.Miner.,Vol.107-111,1984-1988) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Bastnasite-(La) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Bastnasite-(La)

La(CO3)F
Dana No: 16a.1.1.2 Strunz No: V/C.07-20
Locality:

 

Notes:

 
 
   
 
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