Calumetite Mineral Data

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General Calumetite Information

Chemical Formula:

Cu(OH,Cl)2•2(H2O)

Composition:

Molecular Weight = 152.04 gm

Copper 41.80 % Cu 52.32 % CuO

Hydrogen 3.31 % H 29.62 % H₂O

Chlorine 23.32 % Cl 23.32 % Cl

- % Cl -5.26 % -O=Cl₂

Oxygen 31.57 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu(OH)Cl•2(H₂O)

Environment:

Secondary mineral.

IMA Status:

Approved IMA 1963

Locality:

Centennial mine, Calumet, Houghton County. Michigan, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Calumetite Image

Images:

Calumetite

Comments: Light blue botryoidal coatings of calumetite on tarnished copper with green paratacamite.
Location: Centennial Mine, Houghton County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Calumetite Crystallography

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 7.5(1), 2.481(0.8), 3.02(0.6),

Physical Properties of Calumetite

Cleavage:

{001} Perfect

Color:

Azure blue, Powder blue, Bluish white.

Fracture:

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

Habit:

Scaly - Morphology like fish scales.

Habit:

Spherical - Spherical, rounded aggregates.

Habit:

Wheat Sheaf - Bundle shaped aggregates resembling wheat sheafs after hand reaping wheat.

Hardness:

2 - Gypsum

Luster:

Pearly

Streak:

blue

Optical Properties of Calumetite

Optical Data:

Biaxial (?), a=1.666, b=1.69, g=1.69, bire=0.0240, 2V(Calc)=0, 2V(Meas)=2.

Calculated Properties of Calumetite

Fermion Index:

Fermion Index = 0.000156509
Boson Index = 0.999843491

Photoelectric:

PE_Calumetite= 19.45 barns/electron
U=PE_Calumetite x rElectron Density= . barns/cc.

Radioactivity:

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

Calumetite Classification

Dana Class:

06.02.05.01 (06)Hydroxides and Oxides Containing Hydroxyl

(06.02)where X++ (OH)2

(06.02.05)Dana Group

06.02.05.01 Calumetite Cu(OH,Cl)2•2(H2O) Unk Ortho

Strunz Class:

03.DA.40 03 - HALIDES

03.D - Oxyhalides, Hydroxyhalides and Related Double Halides

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

03.DA.40 Calumetite Cu(OH,Cl)2•2(H2O) Unk Ortho

03.DA.40 Anthonyite Cu(OH,Cl)2•3(H2O) Unk. Mono

Other Calumetite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

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

Calumetite

Cu(OH,Cl)2•2(H2O)
Dana No: 06.02.05.01 Strunz No: 03.DA.40
Locality:

Notes: