Graemite Mineral Data

General Graemite Information

Chemical Formula:

CuTeO3•(H2O)

Composition:

Molecular Weight = 257.16 gm

Copper 24.71 % Cu 30.93 % CuO

Tellurium 49.62 % Te 62.06 % TeO₂

Hydrogen 0.78 % H 7.01 % H₂O

Oxygen 24.89 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu(TeO₃)•(H₂O)

IMA Status:

Approved IMA 1975

Locality:

Cole Shaft, Bisbee, Cochise County, Arizona, USA Link to MinDat.org Location Data.

Name Origin:

Named for Richard Graeme, American geologist.

Name Pronunciation:

Graemite

Graemite Image

Images:

Graemite

Comments: Blue, massive graemite on quartz.
Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5.5 mm.
© Thomas Witzke / Abraxas-Verlag

Graemite Crystallography

Axial Ratios:

a:b:c =0.2656:1:0.2256

Cell Dimensions:

a = 6.805, b = 25.613, c = 5.78, Z = 10; V = 1,007.43 Den(Calc)= 4.24

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pcmm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 6.395(1), 3.434(0.8), 12.803(0.5),

Physical Properties of Graemite

Cleavage:

{010} Good

Color:

Blue green, Green.

Density:

4.13

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

3-3.5 - Calcite-Copper Penny

Optical Properties of Graemite

Gladstone-Dale:

CI meas= -0.236 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.204 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2421,KPDmeas= 0.2486,KC= 0.2011
Ncalc = 1.83 - 1.85

Optical Data:

Biaxial (+), a=1.92, b=1.96, g=2.2, bire=0.2800, 2V(Calc)=50, 2V(Meas)=48.5.

Calculated Properties of Graemite

Electron Density:

Bulk Density (Electron Density)=3.79 gm/cc
note: Specific Gravity of Graemite =4.24 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_Graemite= 181.88 barns/electron
U=PE_Graemite x rElectron Density= 689.72 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Graemite is Not Radioactive

Graemite Classification

Dana Class:

34.02.01.01 (34)Selenites - Tellurites - Sulfites

(34.02)as A++ XO3 ï¿½ x(H2O)

(34.02.01)Dana Group

34.02.01.01 Graemite CuTeO3•(H2O) Pcmm 2/m 2/m 2/m

Strunz Class:

04.JM.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JM -Tellurites without additional anions, with H2O

04.JM.15 Graemite CuTeO3•(H2O) Pcmm 2/m 2/m 2/m

Other Graemite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Graemite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Print or Cut-and-Paste your Graemite Specimen Label here :

Graemite

CuTeO3•(H2O)
Dana No: 34.02.01.01 Strunz No: 04.JM.15
Locality:

Notes:

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