Planerite Mineral Data

Planerite Mineral Data +

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General Planerite Information

Chemical Formula:

Al6(PO4)2(PO3OH)2(OH)8·4(H2O)

Composition:

Molecular Weight = 751.91 gm

Aluminum 21.53 % Al 40.68 % Al₂O₃

Phosphorus 16.48 % P 37.76 % P₂O₅

Hydrogen 2.41 % H 21.56 % H₂O

Oxygen 59.58 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Al₆(PO₄)₂(PO₃OH)₂(OH)₈·4(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1862

Locality:

Copper mines at Gumeshevsk, Ural Mountains, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for D. I. Planer, director of mines, Gumeshevsk, Ural Mountains, Russia.

Planerite Image

Images:

Planerite

Comments: Light green, oolitic coatings of planerite on matrix.
Location: Mauldin Mountain Quarry, Mt. Ida, Montgomery County, Arkansas, USA. Scale: Picture size 0.5 cm.
© John Veevaert

Planerite Crystallography

Axial Ratios:

a:b:c =0.7718:1:0.8036

Cell Dimensions:

a = 7.505, b = 9.723, c = 7.814, Z = 1; alpha = 111.43°, beta = 115.56°, gamma = 68.69° V = 446.09 Den(Calc)= 2.80

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.745(1), 6.829(0.9), 3.692(0.6),

Physical Properties of Planerite

Color:

Bluish green, Light blue, Light green, Olive green.

Density:

2.68

Diaphaniety:

Transparent to Subopaque

Habit:

Botryoidal - "Grape-like" rounded forms (e.g.. malachite).

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Hardness:

5 - Apatite

Luster:

Vitreous - Dull

Streak:

blue white

Optical Properties of Planerite

Gladstone-Dale:

CI meas= 0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.054 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2143,KPDmeas= 0.2239,KC= 0.2266

Optical Data:

Biaxial (?), b=1.6

Calculated Properties of Planerite

Electron Density:

r_electron=2.71 gm/cc
note: r_Planerite=2.68 gm/cc.

Fermion Index

Fermion Index = 0.00028
Boson Index = 0.99972

Photoelectric:

PE_Planerite= 1.46 barns/electron
U=PE_Planerite x r_electron= 3.97 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Planerite is Not Radioactive

Planerite Classification

Dana Class:

42.9.3.6 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.9)where (A)3 (XO4)2 Zq · x(H2O)

(42.9.3)Dana Group

42.9.3.1 Turquoise CuAl6(PO4)4(OH)8·4(H2O) P1 1

42.9.3.2 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8·4-5(H2O) P1 1

42.9.3.3 Faustite (Zn,Cu)Al6(PO4)4(OH)8·4(H2O) P1 1

42.9.3.4 Chalcosiderite CuFe6(PO4)4(OH)8·4(H2O) P1 1

42.9.3.5 Aheylite (Fe,Zn)Al6(PO4)4(OH)8·4(H2O) P1 1

42.9.3.6 Planerite Al6(PO4)2(PO3OH)2(OH)8·4(H2O) P1 1

Strunz Class:

VII/D.15-10 VII - Phosphates, Arsenates and Vanadates

VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe

VII/D.15 - Turquoise group

VII/D.15-10 Planerite Al6(PO4)2(PO3OH)2(OH)8·4(H2O) P1 1

VII/D.15-20 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8·4-5(H2O) P1 1

VII/D.15-30 Aheylite (Fe,Zn)Al6(PO4)4(OH)8·4(H2O) P1 1

VII/D.15-40 Turquoise CuAl6(PO4)4(OH)8·4(H2O) P1 1

VII/D.15-50 Faustite (Zn,Cu)Al6(PO4)4(OH)8·4(H2O) P1 1

VII/D.15-60 Chalcosiderite CuFe6(PO4)4(OH)8·4(H2O) P1 1

Other Planerite Information

References:

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

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Planerite

Al6(PO4)2(PO3OH)2(OH)8·4(H2O)
Dana No: 42.9.3.6 Strunz No: VII/D.15-10
Locality:

Notes: