Phosphogartrellite Mineral Data

General Phosphogartrellite Information

Chemical Formula:

PbCuFe+++(PO4)2(OH,H2O)2

Composition:

Molecular Weight = 551.56 gm

Iron 10.13 % Fe 14.48 % Fe₂O₃

Copper 11.52 % Cu 12.97 % Cu₂O

Phosphorus 11.23 % P 25.74 % P₂O₅

Hydrogen 0.55 % H 4.90 % H₂O

Lead 37.57 % Pb 40.47 % PbO

Oxygen 29.01 % O

______ ______

100.00 % 98.55 % = TOTAL OXIDE

Empirical Formula:

PbCuFe³⁺(PO₄)₂(OH)•(H₂O)

Environment:

In a silicifed barite vein. The phosphate dominant analog of gartrellite.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

Type locality is about 200 meters sourth of Hohenstein, near Reichenbach, Odenwald, Germany. Link to MinDat.org Location Data.

Name Origin:

For the relationship with gartrellite.

Name Pronunciation:

Phosphogartrellite + Pronunciation

Synonym:

IMA1996-035

Phosphogartrellite Crystallography

Axial Ratios:

a:b:c =0.9623:1:1.3447

Cell Dimensions:

a = 5.32, b = 5.528, c = 7.434, Z = 1; alpha = 67.61°, beta = 69.68°, gamma = 70.65° V = 178.86 Den(Calc)= 5.12

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 4.36(1), 2.885(0.89), 3.25(0.7),

Physical Properties of Phosphogartrellite

Cleavage:

None

Color:

Bright green.

Density:

5.05

Diaphaneity:

Transparent to translucent

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Hardness:

4.5 - Between Fluorite and Apatite

Luster:

Vitreous - Adamantine

Streak:

yellow

Optical Properties of Phosphogartrellite

Gladstone-Dale:

CI meas= 0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.017 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1902,KPDmeas= 0.1868,KC= 0.1935
Ncalc = 1.96 - 1.98

Optical Data:

Biaxial (-), a=1.9, b=1.93, g=2, bire=0.1000, 2V(Calc)=70, 2V(Meas)=70. Dispersion dispersion not observed.

Calculated Properties of Phosphogartrellite

Electron Density:

Bulk Density (Electron Density)=4.50 gm/cc
note: Specific Gravity of Phosphogartrellite =4.96 gm/cc.

Fermion Index:

Fermion Index = 0.08
Boson Index = 0.92

Photoelectric:

PE_{Phosphogartrellite}= 645.34 barns/electron
U=PE_{Phosphogartrellite} x rElectron Density=2,901.70 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Phosphogartrellite is Not Radioactive

Phosphogartrellite Classification

Dana Class:

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

(42.02)where (AB)3 (XO4) Zq ï¿½ x(H2O)

(42.02.05)Dana Group

42.02.05.01 Phosphogartrellite! PbCuFe(PO4)2(OH,H2O)2 P1 1

Strunz Class:

08.CG.20 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CG -With large and medium-sized cations, RO4:H2O = 1:1

08.CG.20 Gartrellite Pb(Cu,Fe)2(AsO4,SO4)2(CO3,H2O)0.7 P1,P 1 Tri

08.CG.20 Helmutwinklerite PbZn2(AsO4)2•2(H2O) P1 1

08.CG.20 Phosphogartrellite! PbCuFe(PO4)2(OH,H2O)2 P1 1

08.CG.20 Zincgartrellite! Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2 P1 1

08.CG.20 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O) P1 1

08.CG.20 Lukrahnite! Ca(Cu,Zn)(Fe,Zn)(AsO4)2(OH,H2O)2 P1 1

Other Phosphogartrellite Information

References:

NAME( MinRec) PHYS. PROP.(Min.Mag.,Vol.61,p734,1997) OPTIC PROP.(MinRec)

See Also:

Links to other databases for Phosphogartrellite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Phosphogartrellite

PbCuFe+++(PO4)2(OH,H2O)2
Dana No: 42.02.05.01 Strunz No: 08.CG.20
Locality:

Notes:

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