Paramelaconite Mineral Data

Paramelaconite Mineral Data +

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General Paramelaconite Information

Chemical Formula:

Cu+2Cu++2O3

Composition:

Molecular Weight = 79.55 gm

Copper 79.89 % Cu 100.00 % CuO

Oxygen 20.11 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CuO

IMA Status:

Valid Species (Pre-IMA) 1891

Locality:

Copper Queen mine, Bisbee, Arizona, USA. Link to MinDat.org Location Data.

Synonym:

ICSD 100566

PDF 3-879

Paramelaconite Image

Images:

Paramelaconite

Comments: black paramelaconite masses with blue chrysocolla.
Location: Algoma Mine, Otonagon County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paramelaconite Crystallography

Axial Ratios:

a:c = 1:1.70155

Cell Dimensions:

a = 5.837, c = 9.932, Z = 16; V = 338.39 Den(Calc)= 6.25

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4₁/amd

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

By Intensity(I/I_o): 3.174(1), 2.918(0.38), 1.7302(0.21),

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Crystal Structure:

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O Keeffe M , Bovin J O , American Mineralogist , 63 (1978) p.180-185, The crystal structure of paramelaconite, Cu4O3

Physical Properties of Paramelaconite

Cleavage:

None

Color:

Black.

Density:

6.106

Diaphaniety:

Opaque

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Hardness:

4.5 - Between Fluorite and Apatite

Luminescence:

Non-fluorescent.

Luster:

Adamantine

Magnetism:

Nonmagnetic

Streak:

black

Optical Properties of Paramelaconite

Optical Data:

NCalc= 2.06 - from Gladstone-Dale relationship (KC = 0.17) where Ncalc=Dcalc*KC+1
NCalc= 2.04 - from Gladstone-Dale relationship (KC = 0.17) where Ncalc=Dmeas*KC+1

Calculated Properties of Paramelaconite

Electron Density:

r_electron=5.81 gm/cc
note: r_{Paramelaconite}=6.25 gm/cc.

Fermion Index

Fermion Index = 0.00009
Boson Index = 0.99991

Photoelectric:

PE_{Paramelaconite}= 36.14 barns/electron
U=PE_{Paramelaconite} x r_electron= 210.10 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Paramelaconite is Not Radioactive

Paramelaconite Classification

Dana Class:

4.6.4.1 (4)Simple Oxides

(4.6)not classified

(4.6.4)Dana Group

4.6.4.1 Paramelaconite Cu2Cu2O3 I 4₁/amd 4/m 2/m 2/m

Strunz Class:

IV/A.05-20 IV - Oxides

IV/A - Oxides with metal : oxygen = 1:1 and 2:1 (M2O,MO)

IV/A.05 - Periclase Group, Tenorite - Crednerite series

IV/A.05-10 Tenorite CuO C 2/c 2/m

IV/A.05-20 Paramelaconite Cu2Cu2O3 I 4₁/amd 4/m 2/m 2/m

IV/A.05-30 Delafossite CuFeO2 R 3m 3 2/m

IV/A.05-40 Mcconnellite CuCrO2 R 3m 3 2/m

IV/A.05-50 Crednerite CuMnO2 A2/m 2/m

Other Paramelaconite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Paramelaconite :
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 Paramelaconite Specimen Label here :

Paramelaconite

Cu+2Cu++2O3
Dana No: 4.6.4.1 Strunz No: IV/A.05-20
Locality:

Notes: