Frankhawthorneite Mineral Data + Say FRANKHAWTHORNEITE

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General Frankhawthorneite Information
Help on Chemical Formula: Chemical Formula: Cu2Te++++++O4(OH)2
Help on Composition: Composition: Molecular Weight = 352.70 gm
   Copper     36.03 %  Cu   45.11 % CuO
   Tellurium  36.18 %  Te   45.25 % TeO2
   Hydrogen    0.57 %  H     5.11 % H2O
   Oxygen     27.22 %  O
             ______        ______ 
             100.00 %       95.46 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2(TeO4)(OH)2
Help on Environment: Environment: Isolated crystals or groups on drusey quartz. Formed from the oxidation of primary Cu-Te-bearing sulfides.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: The Centennial Eureka mine, Juab County, Utah, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Prof. Frank Christopher Hawthorne (1946-), University of Manitoba, Winnipeg, Canada.
Help on Synonym: Synonym: ICSD 81607
  IMA1993-047
  PDF 49-1863
 

Frankhawthorneite Image

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Frankhawthorneite

Comments: Very small green crystals of frankhawthorneite on a light green unknown mineral.
Location: Centennial Eureka Mine, Tintic District, Juab Co., Utah, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Frankhawthorneite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.747:1:0.8843
Help on Cell Dimensions: Cell Dimensions: a = 9.095, b = 5.206, c = 4.604, Z = 2; beta = 98.115° V = 215.81 Den(Calc)= 5.43
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.598(1), 2.891(0.7), 4.337(0.6),
Help on Forms: Forms:

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Forms: [ 0 1 0] [ 0 1 1] [ 1 0 0] [ 0 0 1]

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Grice J D , Roberts A C , The Canadian Mineralogist , 33 (1995) p.649-653, Frankhawthorneite, a unique HCP framework structure of a cupric tellurate

 

Physical Properties of Frankhawthorneite

Help on Cleavage: Cleavage: None
Help on Color: Color: Medium leaf green.
Help on Density: Density: 5.44
Help on Diaphaniety: Diaphaniety: Transparent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light leaf green
 

Optical Properties of Frankhawthorneite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1842,KPDmeas= 0.1838,KC= 0.185
Help on Optical Data: Optical Data: Biaxial (?), b=2
Help on RL Anisotrophism: RL Anisotrophism: Weak, somber brown.
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on RL Color: RL Color: Pale gray with viridian-green internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Frankhawthorneite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   12.60   14.20 
   
 420 nm   12.30   13.70 
 440 nm   12.00   13.30 
 460 nm   11.70   12.90 
 480 nm   11.40   12.60 
 500 nm   11.20   12.40 
 520 nm   11.00   12.20 
 540 nm   10.90   12.00 
 560 nm   10.70   11.90 
 580 nm   10.60   11.70 
 600 nm   10.50   11.60 
 620 nm   10.40   11.40 
 640 nm   10.30   11.30 
 660 nm   10.20   11.20 
 680 nm   10.10   11.20 
 700 nm   10.10   11.20 
Calculated Relative Intensity Colors of Frankhawthorneite in Air
Relative
Intensity		    0%   90% 100% 180% 270% 360% 450% 540% 630% 720% 810% 830%
R1                        
R2                        
 

Calculated Properties of Frankhawthorneite

Help on Electron Density: Electron Density:

relectron=4.93 gm/cc
note: rFrankhawthorneite =5.43 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.02903
Boson Index = 0.97097
Help on Photoelectric: Photoelectric:

PEFrankhawthorneite = 139.10 barns/electron
U=PEFrankhawthorneite x relectron= 685.30 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Frankhawthorneite is Not Radioactive
 

Frankhawthorneite Classification
Help on Dana Class: Dana Class: 33.1.4.1 (33)Selenates and Tellurates
  (33.1)as A+ (B++)m XO4 Zq
  (33.1.4)Dana Group
 
33.1.4.1 Frankhawthorneite Cu2TeO4(OH)2 P 21/n 2/m
Help on Strunz Class: Strunz Class: IV/K.15-10 IV - Oxides
  IV/K - Complex Tellurides with [TeO6]6-, [TeO3]2- and [TeO4]2- groups
  IV/K.15 - Yafsoanite - Cuzticite series
 
IV/K.15-10 Frankhawthorneite Cu2TeO4(OH)2 P 21/n 2/m
 
IV/K.15-12 Xocomecatlite Cu3TeO4(OH)4 Unk Ortho
 
IV/K.15-15 Mcalpineite Cu3TeO6·(H2O) Unk Cubic
 
IV/K.15-16 Jensenite Cu3TeO6·2(H2O) P 21/n 2/m
 
IV/K.15-18 Leisingite! Cu(Mg,Cu,Fe,Zn)2TeO6·6(H2O) P 31m 3 2/m
 
IV/K.15-19 Utahite! Cu5Zn3(TeO4)4(OH)8·7(H2O) P1 or P1 Tri
 
IV/K.15-20 Cuzticite Fe2TeO6·3(H2O) Unk Hex
 
IV/K.15-30 Yafsoanite Ca3Te2Zn3O12 I a3d 4/m 3 2/m
 
IV/K.15-40 Khinite PbCu3TeO6(OH)2 F ddd 2/m 2/m 2/m
 
IV/K.15-50 Parakhinite Cu3PbTeO4(OH)6 P 6222 or P 6422 6 2 2
 
IV/K.15-60 Montanite Bi2TeO6·2(H2O) Mono
 

Other Frankhawthorneite Information
Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(AntBidBlaNic5, Am.Min.,Vol.81,1996)
Help on See Also: See Also: Links to other databases for Frankhawthorneite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST

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Frankhawthorneite

Cu2Te++++++O4(OH)2
Dana No: 33.1.4.1 Strunz No: IV/K.15-10
Locality:

 

Notes:

 
 
   
 
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