Juabite Mineral Data

General Juabite Information

Chemical Formula:

(Ca,Fe++)Cu10(Te++++O3)4(As+++++O4)4(OH)2•4(H2O)

Composition:

Molecular Weight = 2,040.94 gm

Calcium 1.81 % Ca 2.53 % CaO

Iron 0.22 % Fe 0.28 % FeO

Copper 31.14 % Cu 38.97 % CuO

Tellurium 25.01 % Te 31.28 % TeO₂

Arsenic 14.68 % As 22.52 % As₂O₅

Hydrogen 0.49 % H 4.41 % H₂O

Oxygen 26.65 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca_0.92Fe²⁺_0.08Cu₁₀(TeO₃)₄(AsO₄)₄(OH)₂ï¿½4(H₂O)

IMA Status:

Approved IMA 1997 (Dana # Added)

Locality:

Found in the Centennial Eureka mine, Juab County, Utah, U.S.A. Link to MinDat.org Location Data.

Name Origin:

Named after its discovery locality.

Name Pronunciation:

Juabite

Synonym:

ICSD 89893

IMA1996-001

PDF 51-1417

Juabite Image

Images:

Juabite

Comments: SEM image of a broken juabite platy aggregate which shows the perfect {OlO} cleavage. (MinMag, v61:139).
Location: Mine dumps of the Centennial Eureka mine, Tintic District, Juab County, Utah, USA. Scale: Scale Bar 60 µm.
© Mineralogical Magazine

Juabite Crystallography

Axial Ratios:

a:b:c =0.8913:1:0.8904

Cell Dimensions:

a = 8.984, b = 10.079, c = 8.975, Z = 1; alpha = 102.68°, beta = 92.45°, gamma = 70.45° V = 746.47 Den(Calc)= 4.54

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.097(1), 4.65(0.7), 9.28(0.7),

Physical Properties of Juabite

Cleavage:

{010} Perfect

Color:

Emerald green, Light green.

Density:

4.59

Diaphaneity:

Transparent to Translucent

Fracture:

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

Hardness:

3-4 - Calcite-Fluorite

Luster:

Vitreous - Adamantine

Streak:

pale green

Optical Properties of Juabite

Gladstone-Dale:

CI meas= 0.159 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.149 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1586,KPDmeas= 0.1569,KC= 0.1865
Ncalc = 1.85 - 1.86

Optical Data:

Biaxial (?), a=1.71, b=1.71-1.73, g=1.73, bire=0.0200

Calculated Properties of Juabite

Electron Density:

Bulk Density (Electron Density)=4.15 gm/cc
note: Specific Gravity of Juabite =4.54 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Juabite= 109.04 barns/electron
U=PE_Juabite x rElectron Density= 452.37 barns/cc.

Radioactivity:

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

Juabite Classification

Dana Class:

34.08.08.01 (34)Selenites - Tellurites - Sulfites

(34.08)Dana Type

(34.08.08)Dana Group

34.08.08.01 Juabite! (Ca,Fe)Cu10(TeO3)4(AsO4)4(OH)2•4(H2O) P1 1

Strunz Class:

04.JN.30 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

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

04.JN -Tellurites with additional anions, with H2O

04.JN.30 Juabite! (Ca,Fe)Cu10(TeO3)4(AsO4)4(OH)2•4(H2O) P1 1

Other Juabite Information

References:

NAME( CanMin, 8/99) PHYS. PROP.(AmMin, vol 86, p 770) OPTIC PROP.(Min.Mag.,Vol.61,p731,1997)

See Also:

Links to other databases for Juabite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
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 Juabite Specimen Label here :

Juabite

(Ca,Fe++)Cu10(Te++++O3)4(As+++++O4)4(OH)2•4(H2O)
Dana No: 34.08.08.01 Strunz No: 04.JN.30
Locality:

Notes:

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