Frankhawthorneite Mineral Data (original) (raw)

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 Name Pronunciation: Name Pronunciation:

Frankhawthorneite + Pronunciation Say FRANKHAWTHORNEITE

Help on Synonym: Synonym:

ICSD 81607

IMA1993-047

PDF 49-1863

Frankhawthorneite Image

Click Here for Larger Frankhawthorneite Image in a New Browser Window Images:

Click Here for Larger Frankhawthorneite Image 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) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Click Here for Large Frankhawthorneite Structure Window Crystal Structure:

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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 Diaphaneity: Diaphaneity:

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
Ncalc = 2 - 2.01

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 R 2 ∑ 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

RelativeIntensity 0% 90% 100% 180% 270% 360% 450% 540% 630% 720% 810% 830%
R1
R2

Calculated Properties of Frankhawthorneite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.93 gm/cc
note: Specific Gravity of Frankhawthorneite =5.43 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Help on Photoelectric: Photoelectric:

PEFrankhawthorneite = 139.10 barns/electron
U=PEFrankhawthorneite x rElectron Density= 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:

33.01.04.01 (33)Selenates and Tellurates

(33.01)as A+ (B++)m XO4 Zq

(33.01.04)Dana Group

33.01.04.01 Frankhawthorneite Cu2TeO4(OH)2 P 21/n 2/m

Help on Strunz Class: Strunz Class:

04.FD.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.F - Hydroxides (without V or U)

04.FD -Hydroxides with OH, without H2O; chains of edge-sharing octahedra

04.FD.25 Frankhawthorneite Cu2TeO4(OH)2 P 21/n 2/m

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 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

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Ask about Frankhawthorneite here :
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Print or Cut-and-Paste your Frankhawthorneite Specimen Label here :

Frankhawthorneite

Cu2Te++++++O4(OH)2
Dana No: 33.01.04.01 Strunz No: 04.FD.25
Locality:

Notes: