Azurite Mineral Data + Say AZURITE


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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 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 Diaphaniety: Diaphaniety: 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: None.
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
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:

relectron=3.67 gm/cc
note: rAzurite =3.83 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00094
Boson Index = 0.99906
Help on Photoelectric: Photoelectric:

PEAzurite = 24.43 barns/electron
U=PEAzurite x relectron= 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.2.1.1 (16a)Carbonates - Hydroxyl or Halogen
  (16a.2)where (A B)3 (XO3)2 Zq
  (16a.2.1)Dana Group
 
16a.2.1.1 Azurite Cu3(CO3)2(OH)2 P 21/a 2/m
Help on  Strunz Class: Strunz Class: V/C.01-10 V - Nitrates, Carbonates and Borates
  V/C - Waterfree carbonates with unfamiliar anions
  V/C.01 - Azurite - Rosasite group and related compounds
 
V/C.01-10 Azurite Cu3(CO3)2(OH)2 P 21/a 2/m
 
V/C.01-20 Malachite Cu2(CO3)(OH)2 P 21/a 2/m
 
V/C.01-25 Georgeite Cu5(CO3)3(OH)4·6(H2O) None
 
V/C.01-30 Pokrovskite Mg2(CO3)(OH)2·0.5(H2O) P 21/a 2/m
 
V/C.01-40 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 21/a 2/m
 
V/C.01-50 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri
 
V/C.01-60 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 21/a 2/m
 
V/C.01-70 Nullaginite Ni2(CO3)(OH)2 P 21/m,P 21 Mono
 
V/C.01-80 Rosasite (Cu,Zn)2(CO3)(OH)2 P 21/a 2/m
 
V/C.01-90 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 21/a 2/m
 
V/C.01-100 Hydrozincite Zn5(CO3)2(OH)6 C 2/m 2/m
 
V/C.01-105 Brianyoungite Zn3(CO3,SO4)(OH)4 C 2/m 2/m
 
V/C.01-110 Aurichalcite (Zn,Cu)5(CO3)2(OH)6 P 21/m 2/m
 
V/C.01-120 Loseyite (Mn,Zn)7(CO3)2(OH)10 A2/a 2/m
 
V/C.01-130 Sclarite (Zn,Mg,Mn)4Zn3(CO3)2(OH)10 A2/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 - Applied Mineralogy 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 - Franklin Minerals(Dunn) 8 - Franklin Minerals(Palache) 9 - Glendale Community College 10 -Google Images 11 -Google Scholar 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 - Minerals of Wisconsin 21 - Philatelic Mineralogy 22 -QUT Mineral Atlas 23 - Scandinavian mineral gallery 24 - Tradeshop.com - The Rainbow of Gems 25 - University of Manchester - Mineral Structure 26 - WWW-MINCRYST 27 - YupRocks 28 -theimage 29 -École des Mines de Paris

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

Azurite

Cu3(CO3)2(OH)2
Dana No: 16a.2.1.1 Strunz No: V/C.01-10
Locality:

 

Notes:

 

 
   
 
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