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Orthojoaquinite-(La) Mineral Data

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General Orthojoaquinite-(La) Information

Help on Chemical  Formula: Chemical Formula: Ba2Na(La,Ce)2Fe++Ti2Si8O26(OH,O,F)•H2O
Help on Composition: Composition: Molecular Weight = 1,429.39 gm
   Potassium       0.27 %  K     0.33 % K2O
   Barium         19.21 %  Ba   21.45 % BaO
   Sodium          1.77 %  Na    2.38 % Na2O
   Lanthanum       8.75 %  La   10.26 % La2O3
   Cerium          7.84 %  Ce    9.19 % Ce2O3
   Praeseodymium   0.99 %  Pr    1.15 % Pr2O3
   Titanium        5.36 %  Ti    8.94 % TiO2
   Manganese       0.38 %  Mn    0.50 % MnO
   Niobium         1.95 %  Nb    2.79 % Nb2O5
   Iron            4.30 %   Fe    5.03 % FeO /  0.56 % Fe2O3
   Silicon        15.72 %  Si   33.63 % SiO2
   Hydrogen        0.17 %  H     1.51 % H2O
   Neodymium       2.02 %  Nd    2.35 % Nd2O3
   Oxygen         31.01 %  O
   Fluorine        0.27 %  F     0.27 % F
                    -   %   F    -0.11 % -O=F2    
                 ______        ______ 
                 100.00 %      100.22 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba2Na1.1K0.1La0.9Ce0.8Nd0.2Pr0.1Fe2+Mn2+0.1Ti1.6Nb0.3Fe3+0.1Si8O26.3(OH)0.4 �(H2O)F0.2
Help on Environment: Environment: Occurs in a nepheline-sodalite syenite pegmatites. Joaquinite group
Help on IMA Status: IMA Status: Approved IMA 2000 (Dana # Added)
Help on Locality: Locality: Ilimaussaq alkaline complex, southern Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the La analog of orthojoaquinite.
Help on Name Pronunciation: Name Pronunciation: Orthojoaquinite-(La) + Pronunciation Say ORTHOJOAQUINITE-(LA)
Help on Synonym: Synonym: IMA2000-D
 

Orthojoaquinite-(La) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0887:1:2.3083
Help on Cell Dimensions: Cell Dimensions: a = 10.539, b = 9.68, c = 22.345, Z = 4; V = 2,279.58 Den(Calc)= 4.16
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Ccmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.8(1)(313,008,225), 5.58(0.67)(004), 2.95(0.17)(206),1.596(0.13)(0.0.14,602), 2.91(0.105)(117), 3(0.088)(224), 2.232(0.08)(0.0.10),
 

Physical Properties of Orthojoaquinite-(La)

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Brown.
Help on Density: Density: 4.1
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Silky
 

Optical Properties of Orthojoaquinite-(La)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.041 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.055 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1852,KPDmeas= 0.1879,KC= 0.1959
Ncalc = 1.8 - 1.82
Help on Optical Data: Optical Data: Biaxial (+), a=1.754, b=1.76, g=1.797, bire=0.0430
 

Calculated Properties of Orthojoaquinite-(La)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.77 gm/cc
note: Specific Gravity of Orthojoaquinite-(La) =4.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEOrthojoaquinite-(La) = 186.72 barns/electron
U=PEOrthojoaquinite-(La) x relectron= 704.81 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 19,243.94 (Gamma Ray American Petroleum Institute Units)
Concentration of Orthojoaquinite-(La) per GRapi unit = 51.96 (PPM)

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

Estimated Radioactivity from Orthojoaquinite-(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 / 7.75 cm 438,943 1.19E-05 19,243.94 6.33
100 gm / 3.60 cm 43,894 1.19E-06 1,924.39 0.63
10 gm / 1.67 cm 4,389 1.19E-07 192.44 0.06
1 gm / 7.75 mm 439 1.19E-08 19.24 0.01
0.1 gm / 3.60 mm 44 1.19E-09 1.92 0.00
0.01 gm / 1.67 mm 4 1.19E-10 0.19 0.00
0.001 gm / 0.78 mm 0 1.19E-11 0.02 0.00

Weight of pure Orthojoaquinite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.10 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 ( 0.98 % Th) From Sum REE Elements (19.59 % REE)
 

Orthojoaquinite-(La) Classification

Help on  Dana Class: Dana Class: 60.01.01b.05 (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.01b)Joaquinite group (Ortho-joaquinite subgroup)
 
60.01.01b.01 Orthojoaquinite-(Ce) NaFeBa2Ce2Ti2[Si4O12]2O2(OH)•(H2O) Ccmm or Ccm21 Ortho
 
60.01.01b.02 Strontio-orthojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O) Pbcm or Pbc2 Ortho
 
60.01.01b.03 Bario-orthojoaquinite Fe2(Ba,Sr)4Ti2[Si4O12]O2•(H2O) Ccmm or Ccm2 Ortho
 
60.01.01b.04 Byelorussite-(Ce) NaBa2(Ce,La)2MnTi2Si8O26(F,OH)•(H2O) P 212121 2 2 2
 
60.01.01b.05 Orthojoaquinite-(La)! Ba2Na(La,Ce)2FeTi2Si8O26(OH,O,F)•H2O Ccmm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CE.25 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
 
09.CE.25 Byelorussite-(Ce) NaBa2(Ce,La)2MnTi2Si8O26(F,OH)•(H2O) P 212121 2 2 2
 
09.CE.25 Bario-orthojoaquinite Fe2(Ba,Sr)4Ti2[Si4O12]O2•(H2O) Ccmm or Ccm2 Ortho
 
09.CE.25 Joaquinite-(Ce) NaFeBa2Ce2(Ti,Nb)2[Si4O12]2O2(OH,F)•(H2O) C 2 2
 
09.CE.25 Orthojoaquinite-(Ce) NaFeBa2Ce2Ti2[Si4O12]2O2(OH)•(H2O) Ccmm or Ccm21 Ortho
 
09.CE.25 Strontio-orthojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O) Pbcm or Pbc2 Ortho
 
09.CE.25 Strontiojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O) C 2 2
 
09.CE.25 Orthojoaquinite-(La)! Ba2Na(La,Ce)2FeTi2Si8O26(OH,O,F)•H2O Ccmm 2/m 2/m 2/m
 

Other Orthojoaquinite-(La) Information

Help on References: References: NAME( AmMin, Vol 86, p356) PHYS. PROP.(MinRec, Vol 33, p 166) OPTIC PROP.(MinRec, Vol 33, p 166)
Help on See Also: See Also: Links to other databases for Orthojoaquinite-(La) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Orthojoaquinite-(La) Specimen Label here :

Orthojoaquinite-(La)

Ba2Na(La,Ce)2Fe++Ti2Si8O26(OH,O,F)•H2O
Dana No: 60.01.01b.05 Strunz No: 09.CE.25
Locality:

 

Notes:

 

 
   
 


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