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Orthojoaquinite-(Ce) Mineral Data

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General Orthojoaquinite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: NaFe++Ba2Ce2Ti2[Si4O12]2 O2(OH)•(H2O)
Help on Composition: Composition: Molecular Weight = 1,388.16 gm
   Barium    19.79 %  Ba   22.09 % BaO
   Sodium     1.66 %  Na    2.23 % Na2O
   Cerium    20.19 %  Ce   23.64 % Ce2O3
   Titanium   6.90 %  Ti   11.51 % TiO2
   Iron       4.02 %  Fe    5.18 % FeO
   Silicon   16.19 %  Si   34.63 % SiO2
   Hydrogen   0.15 %  H     1.30 % H2O
   Oxygen    31.12 %  O
            ______        ______ 
            100.00 %      100.58 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaFe2+Ba2Ce2Ti2(Si4O12)2O2•(H2O)
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Dallas Gem mine, San Benito County, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its orthorhombic crystal structure and the relationship to joaquinite (named for Joaquin Ridge, Diablo Range, California, USA).
Help on Name Pronunciation: Name Pronunciation: Orthojoaquinite-(Ce) + Pronunciation Say ORTHOJOAQUINITE-(CE)
Help on Synonym: Synonym: IMA2000-D
 

Orthojoaquinite-(Ce) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0848:1:2.3043
Help on Cell Dimensions: Cell Dimensions: a = 10.48, b = 9.66, c = 22.26, Z = 4; V = 2,253.53 Den(Calc)= 4.09
Help on Crystal System: Crystal System: Orthorhombic Space Group: Ccmm or Ccm21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.94(1), 4.43(0.9), 2.89(0.8),2.61(0.6), 3.29(0.6), 1.866(0.5), 2.98(0.4), 3.05(0.4),
 

Physical Properties of Orthojoaquinite-(Ce)

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Yellow, Light brown.
Help on Density: Density: 3.68
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Orthojoaquinite-(Ce)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.056 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.05 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.188,KPDmeas= 0.209,KC= 0.198
Ncalc = 1.73 - 1.81
Help on Optical Data: Optical Data: Biaxial (+), a=1.748-1.754, b=1.76-1.767, g=1.762-1.823, bire=0.0140-0.0690, 2V(Calc)=44-54, 2V(Meas)=40.
Help on Pleochroism (x): Pleochroism (x): light yellow.
Help on Pleochroism (y): Pleochroism (y): light yellow.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Orthojoaquinite-(Ce)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.77 gm/cc
note: Specific Gravity of Orthojoaquinite-(Ce) =4.09 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEOrthojoaquinite-(Ce) = 190.53 barns/electron
U=PEOrthojoaquinite-(Ce) x relectron= 717.44 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 19,824.06 (Gamma Ray American Petroleum Institute Units)
Concentration of Orthojoaquinite-(Ce) per GRapi unit = 50.44 (PPM)

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

Estimated Radioactivity from Orthojoaquinite-(Ce) - 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 / 7.76 cm 452,191 1.22E-05 19,824.06 6.52
100 gm / 3.60 cm 45,219 1.22E-06 1,982.41 0.65
10 gm / 1.67 cm 4,522 1.22E-07 198.24 0.07
1 gm / 7.76 mm 452 1.22E-08 19.82 0.01
0.1 gm / 3.60 mm 45 1.22E-09 1.98 0.00
0.01 gm / 1.67 mm 5 1.22E-10 0.20 0.00
0.001 gm / 0.78 mm 0 1.22E-11 0.02 0.00

Weight of pure Orthojoaquinite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.09 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 ( 1.01 % Th) From Sum REE Elements (20.19 % REE)
 

Orthojoaquinite-(Ce) Classification

Help on  Dana Class: Dana Class: 60.01.01b.01 (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-(Ce) Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Orthojoaquinite-(Ce) :
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 Orthojoaquinite-(Ce) Specimen Label here :

Orthojoaquinite-(Ce)

NaFe++Ba2Ce2Ti2[Si4O12]2 O2(OH)•(H2O)
Dana No: 60.01.01b.01 Strunz No: 09.CE.25
Locality:

 

Notes:

 

 
   
 


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