Coeruleolactite Mineral Data
General Coeruleolactite Information
Chemical Formula:
(Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O)
Composition:
Molecular Weight = 817.38 gm
Calcium 2.94 % Ca 4.12 % CaO
Aluminum 19.81 % Al 37.42 % Al2 O3
Copper 3.11 % Cu 3.50 % Cu2 O
Phosphorus 15.16 % P 34.73 % P2 O5
Hydrogen 2.22 % H 19.84 % H2 O
Oxygen 56.76 % O
______ ______
100.00 % 99.61 % = TOTAL OXIDE
Empirical Formula:
Ca0.6 Cu0.4 Al6 (PO4 )4 (OH)8 •5(H2 O)
Environment:
In brown iron ore (Bog iron).
IMA Status:
Valid Species (Pre-IMA) 1871
Locality:
Rindsberg mine, near Katzenelnbogin, Rhineland-Palatinate, Germany. Link to MinDat.org Location Data.
Name Origin:
Named from the Greek for "blue" and "milk", for its typical color.
Coeruleolactite Image
Images:
Coeruleolactite
Comments: Hexagonal green crystal of coeruleolactite with brownish surface coating.
Location: Turquoise Mine, Cripple Creek, Cripple Creek District, Teller Co., Colorado, USA.
Scale: 12x5x4 mm.
© John Betts - Fine Minerals
Coeruleolactite Crystallography
Axial Ratios:
a:b:c =0.7566:1:0.782
Cell Dimensions:
a = 7.529, b = 9.951, c = 7.782, Z = 1; alpha = 112.51°, beta = 116.54°, gamma = 68.57° V = 448.54 Den(Calc)= 3.03
Crystal System:
Triclinic - Pinacoidal H-M Symbol ( 1 ) Space Group: P1
X Ray Diffraction:
By Intensity(I/Io ): 2.96(1), 3.7(0.9), 3.48(0.5),
Physical Properties of Coeruleolactite
Cleavage:
None
Color:
Milk white, Light blue.
Density:
2.5 - 2.7, Average = 2.6
Diaphaneity:
Semitransparent
Fracture:
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Habit:
Cryptocrystalline - Occurs as crystals too small to distinguish with the naked eye.
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Habit:
Fibrous - Crystals made up of fibers.
Hardness:
5 - Apatite
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Waxy
Streak:
white
Optical Properties of Coeruleolactite
Gladstone-Dale:
CI meas = -0.015 (Superior) - where the CI = (1-KPDmeas /KC ) CI calc = 0.09 (Poor) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2051,KPDmeas = 0.2287,KC = 0.2253 Ncalc = 1.56 - 1.65
Optical Data:
Biaxial (+), a=1.58, b=1.599, g=1.605, bire=0.0250
Calculated Properties of Coeruleolactite
Electron Density:
Bulk Density (Electron Density)=2.62 gm/cc note: Specific Gravity of Coeruleolactite =2.60 gm/cc.
Fermion Index:
Fermion Index = 0.0003155177 Boson Index = 0.9996844823
Photoelectric:
PECoeruleolactite = 3.01 barns/electronU=PECoeruleolactite x r Electron Density= 7.88 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Coeruleolactite is Not Radioactive
Coeruleolactite Classification
Dana Class:
42.09.03.02 (42) Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
(42.09) where (A)3 (XO4)2 Zq � x(H2O)
(42.09.03) Turquoise Group
42.09.03.01 Turquoise CuAl6(PO4)4(OH)8•4(H2O) P1 1
42.09.03.02 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
42.09.03.03 Faustite (Zn,Cu)Al6(PO4)4(OH)8•4(H2O) P1 1
42.09.03.04 Chalcosiderite CuFe6(PO4)4(OH)8•4(H2O) P1 1
42.09.03.05 Aheylite (Fe,Zn)Al6(PO4)4(OH)8•4(H2O) P1 1
42.09.03.06 Planerite Al6(PO4)2(PO3OH)2(OH)8•4(H2O) P1 1
Strunz Class:
08.XX.00 08 - PHOSPHATES, ARSENATES, VANADATES
08.X - Unclassified Strunz PHOSPHATES, ARSENATES, VANADATES
08.XX -Tourquiose Group
08.XX.00 Arsenobismite ? Bi2(AsO4)(OH)3 Unk Ortho
08.XX.00 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
08.XX.00 Cheralite-(Ce) ? (Ce,Ca,Th)(P,Si)O4 P 21 /n 2/m
08.XX.00 Chernovite-(Ce) * (Ce,Y)(AsO4) I 41 /amd 4/m 2/m 2/m
08.XX.00 Kerstenite ? PbSeO4(?) P nma 2/m 2/m 2/m
08.XX.00 Laubmannite ? Fe3Fe6(PO4)4(OH)12 Unk Ortho
08.XX.00 Spodiosite ? Ca2(PO4)F Pbcm 2/m 2/m 2/m
08.XX.00 Pseudo-autunite * (H3O)4Ca2(UO2)2(PO4)4•5(H2O)(?) Unk Ortho
08.XX.00 Viseite Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O)(?) I a3d 4/m 3 2/m
08.XX.00 Vanuranylite ? (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O)(?) C 2/c ? 2/m
08.XX.00 Sodium-autunite Na2(UO2)2(PO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
08.XX.00 Sodium meta-autunite ! Na2(UO2)2(PO4)2•6-8(H2O) P 4/nmm 4/m 2/m 2/m
08.XX.00 Slavkovite ! Cu13(AsO4)6(AsO3OH)4•23(H2O) P1 1
08.XX.00 IMA2000-020 ! Fe4[AsO3OH]5[AsO2(OH)2]2•20(H2O) Ortho Ortho
08.XX.00 Lewisite ! (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m
08.XX.00 Kamarizaite ! Fe3(AsO4)2(OH)3•3H2O Pccm, Pcc2, Pcmm, Pcm21 Ortho
08.XX.00 Lapeyreite ! Cu3O[AsO3(OH)]2•H2O C 2/m 2/m
08.XX.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m
08.XX.00 IMA2009-002 ! Cu3(AsO4)2 P 21 /c 2/m
08.XX.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 63 /m 6/m 2/m 2/m
08.XX.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1
Other Coeruleolactite Information
References:
NAME( AntBidBlaNic4) PHYS. PROP.(AntBidBlaNic4) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Coeruleolactite :
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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Coeruleolactite
(Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O)
Dana No: 42.09.03.02 Strunz No: 08.XX.00
Locality:
Notes:
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