Claringbullite Mineral Data

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

Environment:

Oxidized copper ore or slag, produced under chlorine-rich conditions.

IMA Status:

Approved IMA 1977

Locality:

Nchanga mine, Chingola, Zambia. Link to MinDat.org Location Data.

Name Origin:

Named for Gordon Frank Claringbull (1911-1990), formerly Keeper of Mineralogy and Director of the British Museum (Natural History), London, England.

Name Pronunciation:

Claringbullite + Pronunciation

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 Dipyramidal H-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),

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
Ncalc = 1.81 - 1.83

Optical Data:

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

Calculated Properties of Claringbullite

Electron Density:

Bulk Density (Electron Density)=3.67 gm/cc
note: Specific Gravity of Claringbullite =3.83 gm/cc.

Fermion Index:

Fermion Index = 0.0001341275
Boson Index = 0.9998658725

Photoelectric:

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

Radioactivity:

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

Claringbullite Classification

Dana Class:

10.05.06.01 (10)Oxyhalides and Hydroxyhalides

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

(10.05.06)Dana Group

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

Strunz Class:

03.DA.15 03 - HALIDES

03.D - Oxyhalides, Hydroxyhalides and Related Double Halides

03.DA -With Cu, etc., without Pb

03.DA.15 Claringbullite Cu4(OH)7Cl P 6₃/mmc 6/m 2/m 2/m

Other Claringbullite Information

References:

NAME( AntBidBlaNic3) 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 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Claringbullite

Cu++4(OH)7Cl
Dana No: 10.05.06.01 Strunz No: 03.DA.15
Locality:

Notes:

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