Claringbullite Mineral Data

Claringbullite Mineral Data +

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General Claringbullite Information

Chemical Formula:

Cu++4(OH)7Cl

Composition:

Molecular Weight = 408.69 gm

Copper 62.20 % Cu 77.85 % CuO

Hydrogen 1.73 % H 15.43 % H₂O

Chlorine 8.67 % Cl 8.67 % Cl

- % Cl -1.96 % -O=Cl₂

Oxygen 27.40 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu₄(OH)₇Cl

IMA Status:

Approved IMA 1977

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 81606

PDF 29-539

Claringbullite Image

Images:

Claringbullite

Comments: Velvety micro botryoids of claringbullite lining vug in slag.
Location: Val Varenna, Pegli, Genova, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Claringbullite Crystallography

Axial Ratios:

a:c = 1:1.37638

Cell Dimensions:

a = 6.6733, c = 9.185, Z = 2; V = 354.23 Den(Calc)= 3.83

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

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

By Intensity(I/I_o): 2.7(1), 5.75(1), 2.445(0.9),

Crystal Structure:

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Burns P C , Cooper M A , Hawthorne F C , The Canadian Mineralogist , 33 (1995) p.633-639, Claringbullite: A Cu oxysalt with Cu in trigonal-prismatic coordination

Physical Properties of Claringbullite

Cleavage:

[???] Perfect

Color:

Blue, Light blue.

Density:

3.9

Streak:

light blue

Optical Properties of Claringbullite

Gladstone-Dale:

CI meas= 0.056 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.039 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2039,KPDmeas= 0.2003,KC= 0.2122

Optical Data:

Uniaxial (-), e=1.78, w=1.782, bire=0.0020.

Calculated Properties of Claringbullite

Electron Density:

r_electron=3.67 gm/cc
note: r_{Claringbullite}=3.83 gm/cc.

Fermion Index

Fermion Index = 0.00013
Boson Index = 0.99987

Photoelectric:

PE_{Claringbullite}= 27.92 barns/electron
U=PE_{Claringbullite} x r_electron= 102.58 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Claringbullite is Not Radioactive

Claringbullite Classification

Dana Class:

10.5.6.1 (10)Oxyhalides and Hydroxyhalides

(10.5)where Am (O,OH)p Xq

(10.5.6)Dana Group

10.5.6.1 Claringbullite Cu4(OH)7Cl P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

III/D.03-10 III - Halogenides

III/D - Oxi-halogenides with Mg - Mn - Cu - Zn - Sn

III/D.03 - Atacamite series, Claringbullite - Connellite

III/D.03-10 Claringbullite Cu4(OH)7Cl P 6₃/mmc 6/m 2/m 2/m

III/D.03-20 Simonkolleite Zn5(OH)8Cl2·(H2O) R 3m 3 2/m

III/D.03-25 Gordaite! NaZn(SO4)(OH)6Cl·6(H2O) P 3 3

III/D.03-30 Buttgenbachite Cu19Cl4(NO3)2(OH)32·2(H2O) P 6₃/mmc 6/m 2/m 2/m

III/D.03-40 Connellite Cu19Cl4(SO4)(OH)32·3(H2O) P 62c 6 m2

III/D.03-50 Khaidarkanite! Na0.34Cu4Al3(OH)14F3·2(H2O) C 2/m 2/m

Other Claringbullite 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 Claringbullite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris

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

Claringbullite

Cu++4(OH)7Cl
Dana No: 10.5.6.1 Strunz No: III/D.03-10
Locality:

Notes: