Lindackerite Mineral Data

Lindackerite Mineral Data +

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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.

Lindackerite Image

Images:

Lindackerite

Comments: Greenish crystals of lindackerite.
Location: J?chymov (St Joachimsthal), Krusn? Hory (Erzgebirge), Z?padocesk? 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 - PinacoidalH-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),

Crystal Structure:

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Hybler J , Ondrus P , CiSarova I , Petricek V , Veselovsky F , European Journal of Mineralogy , 15 (2003) p.1035-1042, Crystal structure of lindackerite, (Cu,Co,Ni)Cu4(AsO4)2(AsO3OH)2*9H2O, from Jachymov, Czech Republic, Sample: #MZKJ, Locality: Jachymov, Czech Republic

View Additional jPOWD Structure files for Lindackerite
[1]

Physical Properties of Lindackerite

Cleavage:

[010] Perfect

Color:

Greenish blue, Light apple green.

Density:

3.35

Diaphaniety:

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

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:

r_electron=3.20 gm/cc
note: r_Lindackerite=3.35 gm/cc.

Fermion Index

Fermion Index = 0.00018
Boson Index = 0.99982

Photoelectric:

PE_Lindackerite= 33.61 barns/electron
U=PE_Lindackerite x r_electron= 107.62 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Lindackerite is Not Radioactive

Lindackerite Classification

Dana Class:

39.2.7.1 (39)Hydrated Acid Phosphates, etc

(39.2)H2 (AB)5 (XO4)4 · x(H2O)

(39.2.7)Dana Group

39.2.7.1 Lindackerite CuCu4(AsO4)2(AsO3OH)2·~9(H2O) P1 1

Strunz Class:

VII/C.06-50 VII - Phosphates, Arsenates and Vanadates

VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg

VII/C.06 - Cobaltkoritnigite - Geigerite series

VII/C.06-10 Cobaltkoritnigite (Co,Zn)(AsO3OH)·(H2O) P1 1

VII/C.06-20 Koritnigite ZnHAsO4·(H2O) P1 1

VII/C.06-30 Geminite Cu2As2O7·3(H2O) P1 or P1 Tri

VII/C.06-32 Pushcharovskite! Cu(AsO3OH)·1.5(H2O) P1 or P1 Tri

VII/C.06-35 Yvonite! Cu(AsO3OH)·2(H2O) P1 1

VII/C.06-37 Rollandite! Cu3(AsO4)2·4(H2O) P nma 2/m 2/m 2/m

VII/C.06-40 Chudobaite (Mg,Zn)5(AsO3OH)2(AsO4)2·10(H2O) P1 1

VII/C.06-50 Lindackerite CuCu4(AsO4)2(AsO3OH)2·~9(H2O) P1 1

VII/C.06-60 Geigerite Mn5(AsO3OH)2(AsO4)2·10(H2O) 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Lindackerite

CuCu4(AsO4)2(AsO3OH)2·~9(H2O)
Dana No: 39.2.7.1 Strunz No: VII/C.06-50
Locality:

Notes: