Haydeeite Mineral Data
General Haydeeite Information
Chemical Formula:
Cu3Mg(OH)6Cl2
Composition:
Molecular Weight = 382.25 gm
Magnesium 6.04 % Mg 10.02 % MgO
Copper 49.04 % Cu 61.39 % CuO
Hydrogen 1.66 % H 14.85 % H2 O
Chlorine 17.81 % Cl 17.81 % Cl
- %
Cl -4.02 % -O=Cl2
Oxygen 25.45 % O
______ ______
100.00 % 100.04 % = TOTAL OXIDE
Empirical Formula:
Cu2.95 Mg0.95 H6.3 Cl1.92 O6.08
Environment:
Atacamite group
IMA Status:
Approved IMA 2006 (Dana # Added)
Locality:
Haydee mine, 144 km South of Iquique, Tarapac� Province, Northern Chile Link to MinDat.org Location Data.
Name Origin:
Named for the locality
Synonym:
IMA2006-046
Haydeeite Image
Images:
Haydeeite Crystallography
Axial Ratios:
a:c = 1:0.91613
Cell Dimensions:
a = 6.2733, c = 5.7472, Z = 1; V = 195.88 Den(Calc)= 3.24
Crystal System:
Trigonal - Rhombohedral H-M Symbol ( 3 ) Space Group: R 3 m
X Ray Diffraction:
By Intensity(I/Io ): 5.745(1), 2.872(0.17), 1.915(0.09), 2.455(0.06),
Physical Properties of Haydeeite
Cleavage:
{0001} Perfect
Color:
Bluish green.
Density:
3.27
Diaphaneity:
Transparent
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Acicular - Occurs as needle-like crystals.
Hardness:
2 - Gypsum
Luster:
Vitreous (Glassy)
Streak:
bright greenish blue
Optical Properties of Haydeeite
Gladstone-Dale:
CI meas = 0.032 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = 0.023 (Excellent) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2258,KPDmeas = 0.2237,KC = 0.2311 Ncalc = 1.75 - 1.76
Optical Data:
Uniaxial (-), e=1.71, w=1.753, bire=0.0430.
Calculated Properties of Haydeeite
Electron Density:
Bulk Density (Electron Density)=3.13 gm/cc note: Specific Gravity of Haydeeite =3.24 gm/cc.
Fermion Index:
Fermion Index = 0.0061651923 Boson Index = 0.9938348077
Photoelectric:
PEHaydeeite = 22.74 barns/electronU=PEHaydeeite x r Electron Density= 71.14 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Haydeeite is Not Radioactive
Haydeeite Classification
Dana Class:
10.01.01.04 (10) Oxyhalides and Hydroxyhalides
(10.01) where (A)2 (O,OH)3 Xq
(10.01.01) Atacamite group
10.01.01.01 Atacamite Cu2Cl(OH)3 Pmcn 2/m 2/m 2/m
10.01.01.02 Hibbingite (Fe,Mg)2(OH)3Cl Pnam 2/m 2/m 2/m
10.01.01.03 Gillardite ! Cu3NiCl2(OH)6 R 3 m 3
10.01.01.04 Haydeeite ! Cu3Mg(OH)6Cl2 R 3 m 3
Strunz Class:
03.DA.10c 03 - HALIDES
03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
03.DA -With Cu, etc., without Pb
03.DA.10c Paratacamite (Cu,Zn)2(OH)3Cl R 3 3
03.DA.10c Gillardite ! Cu3NiCl2(OH)6 R 3 m 3
03.DA.10c Herbertsmithite ! Cu3Zn(OH)6Cl2 R 3 m 3 2/m
03.DA.10c Kapellasite ! Cu3Zn(OH)6Cl2 P 3 m1 3 2/m
03.DA.10c Haydeeite ! Cu3Mg(OH)6Cl2 R 3 m 3
Other Haydeeite Information
References:
NAME( AmMin, v93:1943) PHYS. PROP.(AmMin, v93:1943) OPTIC PROP.(AmMin, v93:1943)
See Also:
Links to other databases for Haydeeite :
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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Print or Cut-and-Paste your Haydeeite Specimen Label here :
Haydeeite
Cu3Mg(OH)6Cl2
Dana No: 10.01.01.04 Strunz No: 03.DA.10c
Locality:
Notes:
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