Attikaite Mineral Data

Attikaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1..&checktime(2208,1,2,':').7783

Help on Cell Dimensions: Cell Dimensions: a = 10.01, b = 8.199, c = 22.78, Z = 4; V = 1,869.60 Den(Calc)= 3.36

Help on Crystal System: Crystal System: OrthorhombicSpace Group: Pban, Pbam or Pba2

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/I_o): 22.8(1), 5.01(0.9), 2.78(0.7),11.36(0.6), 2.503(0.5), 3.38(0.5), 2.682(0.3), 2.292(0.2),

Physical Properties of Attikaite

Help on Cleavage: Cleavage: {001} Perfect

Help on Color: Color: Light blue, Greenish blue.

Help on Density: Density: 3.2

Help on Diaphaneity: Diaphaneity: Transparent

Help on Fracture: Fracture: Flexible - Flexible fragments.

Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.

Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail

Help on Luster: Luster: Vitreous (Glassy)

Help on Streak: Streak: pale blue

Optical Properties of Attikaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1915,KPDmeas= 0.201,KC= 0.1905
Ncalc = 1.61 - 1.64

Help on Optical Data: Optical Data: Biaxial (-), a=1.642, b=1.644, g=1.644, bire=0.0020

Calculated Properties of Attikaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.22 gm/cc
note: Specific Gravity of Attikaite =3.36 gm/cc.

Help on Fermion Index: Fermion Index: Fermion Index = 0.0005171588
Boson Index = 0.9994828412

Help on Photoelectric: Photoelectric: PE_Attikaite = 27.59 barns/electron
U=PE_Attikaite x rElectron Density= 88.92 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Attikaite is Not Radioactive

Attikaite Classification

Help on Dana Class: Dana Class: 42.06.05.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.06)where (AB)2 (XO4) Zq ƒL x(H2O)

(42.06.05)Dana Group

42.06.05.01 Strashimirite Cu8(AsO4)4(OH)4•5(H2O) P 2/m,P 2,Pm Mono

42.06.05.02 Arhbarite Cu2Mg(AsO4)(OH)3 P1 1

42.06.05.03 Attikaite! Ca3Cu2Al2(AsO4)4(OH)4•2H2O Pban, Pbam or Pba2 Ortho

Help on Strunz Class: Strunz Class: 08.DJ.45 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DJ -With large and medium-sized cations, (OH, etc.):RO4 = 1:l

08.DJ.45 Attikaite! Ca3Cu2Al2(AsO4)4(OH)4•2H2O Pban, Pbam or Pba2 Ortho

Other Attikaite Information

Help on References: References: NAME( Geology of Ore Deposits, v49:720) PHYS. PROP.(Geology of Ore Deposits, v49:720) OPTIC PROP.(Geology of Ore Deposits, v49:720)

Help on See Also: See Also: Links to other databases for Attikaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Ask about Attikaite here :
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