Cyanophyllite Mineral Data

General Cyanophyllite Information

Chemical Formula:

Cu++5Al2(SbO4)3(OH)7•9(H2O)

Composition:

Molecular Weight = 1,210.12 gm

Aluminum 4.46 % Al 8.43 % Al₂O₃

Copper 26.26 % Cu 32.87 % CuO

Antimony 30.18 % Sb 40.10 % Sb₂O₅

Hydrogen 2.08 % H 18.61 % H₂O

Oxygen 37.02 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu₅Al₂(SbO₄)₃(OH)₇•9(H₂O)

Environment:

Secondary mineral associated with copper mineralization in a hydrothermal polymetallic barite-fluorite deposit.

IMA Status:

Approved IMA 1980

Locality:

Clara mine, near Oberwolfach, Black Forest, Germany. Link to MinDat.org Location Data.

Name Origin:

From the Greek for blue and a leaf, in allusion to the color and habit.

Cyanophyllite Image

Images:

Cyanophyllite

Comments: Small pale green cyanophyllite crystals with blue azurite on matrix.
Location: Monte Avanza, Forni Avoltri, Udine, Italy. Scale: Picture size 1 cm.
© Diederik Visser

Cyanophyllite Crystallography

Axial Ratios:

a:b:c =1.0944:1:0.8925

Cell Dimensions:

a = 11.82, b = 10.8, c = 9.64, Z = 2; V = 1,230.60 Den(Calc)= 3.27

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pmmb

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

By Intensity(I/I_o): 4.84(1), 2.59(0.6), 9.67(0.6),

Physical Properties of Cyanophyllite

Cleavage:

{001} Perfect, {100} Good, {010} Good

Color:

Greenish blue.

Density:

3.1

Hardness:

2 - Gypsum

Luster:

Silky - Pearly

Optical Properties of Cyanophyllite

Gladstone-Dale:

CI meas= -0.075 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.019 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2017,KPDmeas= 0.2128,KC= 0.1979
Ncalc = 1.61 - 1.65

Optical Data:

Biaxial (-), a=1.64, b=1.664, g=1.675, bire=0.0350, 2V(Calc)=66, 2V(Meas)=67.

Calculated Properties of Cyanophyllite

Electron Density:

Bulk Density (Electron Density)=3.10 gm/cc
note: Specific Gravity of Cyanophyllite =3.27 gm/cc.

Fermion Index:

Fermion Index = 0.0001808175
Boson Index = 0.9998191825

Photoelectric:

PE_{Cyanophyllite}= 105.62 barns/electron
U=PE_{Cyanophyllite} x rElectron Density= 327.09 barns/cc.

Radioactivity:

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

Cyanophyllite Classification

Dana Class:

44.03.09.01 (44)Antimonates

(44.03)with miscellaneous formulae

(44.03.09)Dana Group

44.03.09.01 Cyanophyllite Cu5Al2(SbO4)3(OH)7•9(H2O) Pmmb 2/m 2/m 2/m

Strunz Class:

04.FM.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.F - Hydroxides (without V or U)

04.FM -Hydroxides with H2O ï¿½ (OH); Unclassified

04.FM.40 Cyanophyllite Cu5Al2(SbO4)3(OH)7•9(H2O) Pmmb 2/m 2/m 2/m

Other Cyanophyllite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Cyanophyllite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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

Cyanophyllite

Cu++5Al2(SbO4)3(OH)7•9(H2O)
Dana No: 44.03.09.01 Strunz No: 04.FM.40
Locality:

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