Carbonatecyanotrichite Mineral Data

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General Carbonatecyanotrichite Information

Chemical Formula:

Cu++4Al2(CO3,SO4)(OH)12•2(H2O)

Composition:

Molecular Weight = 620.53 gm

Aluminum 8.70 % Al 16.43 % Al₂O₃

Copper 40.96 % Cu 51.28 % CuO

Hydrogen 2.60 % H 23.23 % H₂O

Carbon 1.28 % C 4.68 % CO₂

Sulfur 1.76 % S 4.39 % SO₃

Oxygen 44.71 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu₄Al₂(CO₃)_0.66(SO₄)_0.34(OH)₁₂•2(H₂O)

Environment:

Oxidation weathering product of sulfides.

IMA Status:

Approved IMA 1963

Locality:

Balasauskankyk, in NW Kara-Tau area, Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named after the composition and structural similarity to cyanotrichite, Greek for "blue hair".

Name Pronunciation:

Carbonatecyanotrichite + Pronunciation

Synonym:

Carbonate-cyanotrichite - Renamed Carbonatecyanotrichite by Mineralogical Record, v39 (2008), p131

Carbonatecyanotrichite Image

Images:

Carbonatecyanotrichite

Comments: Bright blue micro crystals of carbonate-cyanotrichite on matrix.
Location: Widowmaker mine, Fry Canyon, San Juan Co., Utah, USA. Scale: Crystal size 0.1 mm.
© Tom Loomis / Dakota Matrix

Carbonatecyanotrichite Crystallography

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 4.21(1), 10.1(1), 2.01(0.6),3.33(0.6), 5.03(0.6), 2.51(0.5), 2.77(0.5), 5.63(0.5),

Physical Properties of Carbonatecyanotrichite

Color:

Blue, Greenish blue, Azure blue.

Density:

2.65 - 2.67, Average = 2.66

Diaphaneity:

Transparent to Translucent

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Hardness:

2 - Gypsum

Luster:

Silky

Optical Properties of Carbonatecyanotrichite

Gladstone-Dale:

CI meas= -0.106 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.241,KC= 0.2178
Ncalc = 1.58

Optical Data:

Biaxial (+), a=1.616, b=1.63, g=1.677, bire=0.0610, 2V(Calc)=60, 2V(Meas)=55-60. Dispersion strong, r > v.

Pleochroism (x):

colorless.

Pleochroism (z):

bright blue.

Calculated Properties of Carbonatecyanotrichite

Electron Density:

Bulk Density (Electron Density)=2.62 gm/cc
note: Specific Gravity of Carbonatecyanotrichite =2.66 gm/cc.

Fermion Index:

Fermion Index = 0.0004907929
Boson Index = 0.9995092071

Photoelectric:

PE_{Carbonatecyanotrichite}= 17.94 barns/electron
U=PE_{Carbonatecyanotrichite} x rElectron Density= 47.09 barns/cc.

Radioactivity:

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

Carbonatecyanotrichite Classification

Dana Class:

16b.07.07.01 (16b)Carbonates - Hydroxyl or Halogen

(16b.07)Dana Type

(16b.07.07)Dana Group

16b.07.07.01 Carbonatecyanotrichite Cu4Al2(CO3,SO4)(OH)12•2(H2O) Unk Ortho

Strunz Class:

07.DE.10 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DE -With only medium-sized cations; unclassified

07.DE.10 Cyanotrichite Cu4Al2(SO4)(OH)12•2(H2O) Unk Ortho

07.DE.10 Carbonatecyanotrichite Cu4Al2(CO3,SO4)(OH)12•2(H2O) Unk Ortho

Other Carbonatecyanotrichite Information

References:

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

See Also:

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

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Ask about Carbonatecyanotrichite here :
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Print or Cut-and-Paste your Carbonatecyanotrichite Specimen Label here :

Carbonatecyanotrichite

Cu++4Al2(CO3,SO4)(OH)12•2(H2O)
Dana No: 16b.07.07.01 Strunz No: 07.DE.10
Locality:

Notes: