Azurite Mineral Data

Azurite Mineral Data
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General Azurite Information

Help on Chemical Formula: Chemical Formula: Cu3(CO3)2(OH)2
Help on Composition: Composition: Molecular Weight = 344.67 gm
   Copper    55.31 %  Cu   69.24 % CuO
   Hydrogen   0.58 %  H     5.23 % H2O
   Carbon     6.97 %  C    25.54 % CO2
   Oxygen    37.14 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu3(CO3)2(OH)2
Help on Environment: Environment: Secondary mineral in the oxidized zone of copper ore deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Tsumeb near Otavi, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Persian lazhward, meaning "blue.".
Help on Name Pronunciation: Name Pronunciation: Azurite Say AZURITE
Help on Synonym: Synonym: Chessylite
  ICSD 2934
  PDF 11-682
 

Azurite Image

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Azurite   Malachite

Comments: Dark blue stubby pyramidal azurite crystals and green botryoidal-shaped radial aggregates of malachite.
Location: Nevada Lode Mine, San Juan Co., Utah, USA. Scale: 4 cm.
© Dave Barthelmy
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Azurite   Clinotyrolite

Comments: Light blue acicular crystals of clinotyrolite on dark blue azurite.
Location: Lovelock mine, Churchill County, Nevada, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
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Azurite

Comments: Sharp, dark blue, crystalline azurite group.
Location: Puit IX, Touissit, Oujda. Scale: 5 x 3.3 x 1.3 cm.
© Fabre Minerals
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Azurite   Cyanotrichite

Comments: Blue, hairy crystals of cyanotrichite with dark-blue, blocky azurite on a green, malachite matrix.
Location: Maid of Sunshine Mine, Cochise County, Arizona, USA. Scale: See Image.
© Jeff Weissman / Photographic Guide to Mineral Species

Azurite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8569:1:1.7686
Help on Cell Dimensions: Cell Dimensions: a = 5.008, b = 5.844, c = 10.336, Z = 2; beta = 92.333° V = 302.25 Den(Calc)= 3.79
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.516(1), 2.224(0.7), 5.15(0.55),
Help on Forms: Forms:

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Forms: ( 0 1 1) ( 1 1 0) ( 1 0 2) ( 0 1 3) ( 1 0 0) ( 1 1 1) ( 0 0 1)

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Belokoneva E L , Gubina Y K , Forsyth J B , Physics and Chemistry of Minerals , 28 (2001) p.498-507, The charge density distribution and antiferromagnetic properties of, azurite Cu3[CO3]2(OH)2, Note: O1 x-coordinate altered

 

Physical Properties of Azurite

Help on Cleavage: Cleavage: {011} Perfect, {100} Fair
Help on Color: Color: Azure blue, Blue, Light blue, Dark blue.
Help on Density: Density: 3.77 - 3.89, Average = 3.83
Help on Diaphaneity: Diaphaneity: Transparent to subtranslucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light blue
 

Optical Properties of Azurite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.069 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.08 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2046,KPDmeas= 0.2024,KC= 0.1894
Ncalc = 1.71 - 1.74
Help on Optical Data: Optical Data: Biaxial (+), a=1.73, b=1.758, g=1.838, bire=0.1080, 2V(Calc)=64, 2V(Meas)=68. Dispersion relatively weak.
Help on Pleochroism (x): Pleochroism (x): clear blue.
Help on Pleochroism (y): Pleochroism (y): clear blue.
Help on Pleochroism (z): Pleochroism (z): dark purple.
 

Calculated Properties of Azurite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.67 gm/cc
note: Specific Gravity of Azurite =3.83 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0009457773
Boson Index = 0.9990542227
Help on Photoelectric: Photoelectric: PEAzurite = 24.43 barns/electron
U=PEAzurite x rElectron Density= 89.58 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Azurite is Not Radioactive
 

Azurite Classification
Help on Dana Class: Dana Class: 16a.02.01.01 (16a)Carbonates - Hydroxyl or Halogen
  (16a.02)where (A B)3 (XO3)2 Zq
  (16a.02.01)Dana Group
 
16a.02.01.01 Azurite Cu3(CO3)2(OH)2 P 21/a 2/m
Help on Strunz Class: Strunz Class: 05.BA.05 05 - CARBONATES (NITRATES)
  05.B - Carbonates with additional anions, without H2O
  05.BA -With Cu, Co, Ni, Zn, Mg, Mn
 
05.BA.05 Azurite Cu3(CO3)2(OH)2 P 21/a 2/m
 

Other Azurite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Mason68)
Help on See Also: See Also: Links to other databases for Azurite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - Franklin Minerals(Palache)
8 - Glendale Community College
9 - Google Images
10 - Google Scholar
11 - Handbook of Mineralogy (MinSocAm)
12 - Handbook of Mineralogy (UofA)
13 - HyperPhysics
14 - MinDAT
15 - MinMax(Deutsch)
16 - MinMax(English)
17 - Mineral and Gemstone Kingdom
18 - Mineral of the Month
19 - Mineralienatlas (Deutsch)
20 - Philatelic Mineralogy
21 - QUT Mineral Atlas
22 - Ruff.Info
23 - Scandinavian mineral gallery
24 - Tradeshop.com - The Rainbow of Gems
25 - WWW-MINCRYST
26 - YupRocks
27 - theimage

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

Azurite

Cu3(CO3)2(OH)2
Dana No: 16a.02.01.01 Strunz No: 05.BA.05
Locality:

 

Notes: