Lindackerite Mineral Data

General Lindackerite Information

Chemical Formula:

CuCu4(AsO4)2(AsO3OH)2•~9(H2O)

Composition:

Molecular Weight = 1,012.96 gm

Copper 30.68 % Cu 38.40 % CuO

Arsenic 29.59 % As 45.38 % As₂O₅

Hydrogen 1.81 % H 16.22 % H₂O

Oxygen 37.92 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu_0.89Cu₄(AsO₄)_1.78(AsO₃OH)_2.22•8.01(H₂O)

Environment:

Secondary oxidation zone mineral.

IMA Status:

Valid Species (Pre-IMA) 1853

Locality:

Eliaas mine, Jachymov, Bohemia, Czech Republic. Link to MinDat.org Location Data.

Name Origin:

Named for Joseph Lindacker, Austrain chemist, who made the analysis.

Name Pronunciation:

Lindackerite + Pronunciation

Lindackerite Image

Images:

Lindackerite

Comments: Greenish crystals of lindackerite.
Location: JÃ¡chymov (St Joachimsthal), KrusnÃ© Hory (Erzgebirge), ZÃ¡padoceskÃ½ Kraj, Bohemia, Czech Republic. Scale: Picture size 2.2 mm.
© Thomas Witzke / Abraxas-Verlag

Lindackerite Crystallography

Axial Ratios:

a:b:c =0.797:1:1.2837

Cell Dimensions:

a = 6.415, b = 8.048, c = 10.332, Z = 1; alpha = 85.41°, beta = 79.5°, gamma = 84.71° V = 520.58 Den(Calc)= 3.23

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 10.2(1), 8.02(0.7), 3.668(0.6),

Physical Properties of Lindackerite

Cleavage:

{010} Perfect

Color:

Greenish blue, Light apple green.

Density:

3.35

Diaphaneity:

Transparent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Habit:

Rosette - Bundled tabular aggregates resembling rose flower petals.

Hardness:

2-2.5 - Gypsum-Finger Nail

Luster:

Vitreous (Glassy)

Streak:

pale greenish white

Optical Properties of Lindackerite

Gladstone-Dale:

CI meas= -0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.073 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2082,KPDmeas= 0.2007,KC= 0.1939
Ncalc = 1.63 - 1.65

Optical Data:

Biaxial (+), a=1.627-1.632, b=1.659-1.662, g=1.725-1.729, bire=0.0970-0.0980, 2V(Calc)=70-74, 2V(Meas)=72-73.

Calculated Properties of Lindackerite

Electron Density:

Bulk Density (Electron Density)=3.20 gm/cc
note: Specific Gravity of Lindackerite =3.35 gm/cc.

Fermion Index:

Fermion Index = 0.0001847538
Boson Index = 0.9998152462

Photoelectric:

PE_Lindackerite= 33.61 barns/electron
U=PE_Lindackerite x rElectron Density= 107.62 barns/cc.

Radioactivity:

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

Lindackerite Classification

Dana Class:

39.02.07.01 (39)Hydrated Acid Phosphates, etc

(39.02)H2 (AB)5 (XO4)4 ï¿½ x(H2O)

(39.02.07)Lindackerite Group

39.02.07.01 Lindackerite CuCu4(AsO4)2(AsO3OH)2•~9(H2O) P1 1

39.02.07.02 IMA2008-010! CaCu4(AsO4)2(AsO3OH)2•10H2O P1 1

39.02.07.03 Braithwaiteite NaCu5(Ti,Sb)2O2(AsO4)4[AsO3(OH)]2•8H2O P1 1

39.02.07.04 Veselovskyite (Zn,Cu,Co)Cu4(AsO4)2(AsO3OH)2•9H2O P1 1

Strunz Class:

08.CE.30 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CE -With only medium-sized cations, RO4:H2O ï¿½ 1:2.5

08.CE.30 Lindackerite CuCu4(AsO4)2(AsO3OH)2•~9(H2O) P1 1

08.CE.30 Veselovskyite (Zn,Cu,Co)Cu4(AsO4)2(AsO3OH)2•9H2O P1 1

08.CE.30 IMA2008-010! CaCu4(AsO4)2(AsO3OH)2•10H2O P1 1

Other Lindackerite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8, AmMin 89:1833) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Lindackerite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Lindackerite

CuCu4(AsO4)2(AsO3OH)2•~9(H2O)
Dana No: 39.02.07.01 Strunz No: 08.CE.30
Locality:

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