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 % As2 O5
Hydrogen 1.81 % H 16.22 % H2 O
Oxygen 37.92 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Cu0.89 Cu4 (AsO4 )1.78 (AsO3 OH)2.22 •8.01(H2 O)
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: Jáchymov (St Joachimsthal), Krusné Hory (Erzgebirge), Západoceský 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
X Ray Diffraction:
By Intensity(I/Io ): 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:
PELindackerite = 33.61 barns/electronU=PELindackerite x r Electron 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 � 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 � 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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Lindackerite
CuCu4(AsO4)2(AsO3OH)2•~9(H2O)
Dana No: 39.02.07.01 Strunz No: 08.CE.30
Locality:
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