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Gartrellite Mineral Data
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General Gartrellite Information
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 Chemical Formula: |
Pb(Cu,Fe++)2(AsO4,SO4)2(CO3,H2O)0.7 |
| Composition: |
Molecular Weight = 620.46 gm |
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Iron 4.50 % Fe 5.79 % FeO |
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Copper 15.36 % Cu 19.23 % CuO |
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Arsenic 18.11 % As 27.78 % As2O5 |
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Hydrogen 0.06 % H 0.58 % H2O |
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Lead 33.39 % Pb 35.97 % PbO |
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Carbon 0.97 % C 3.55 % CO2 |
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Sulfur 2.58 % S 6.45 % SO3 |
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Oxygen 25.01 % O |
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______ ______ |
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100.00 % 99.36 % = TOTAL OXIDE |
| Empirical Formula: |
PbCu1.5Fe2+0.5(AsO4)1.5(SO4)0.5(CO3)0.5(H2O)0.2 |
| IMA Status: |
Approved IMA 1989 |
| Locality: |
Ashburton Downs, Western Australia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Blair Gartrell (1950-1995), Australian collector who found the mineral. |
| Name Pronunciation: |
Gartrellite + Pronunciation  |
| Synonym: |
ICSD 76618 |
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PDF 46-1306 |
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Gartrellite Image |
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Images:
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Gartrellite
Comments: Lime green gartrellite on matrix associated with mimetite. Former MartÃn Oliete Fontela collection.
Location: Tsumeb mine, Tsumeb, Namibia.
Scale: 6x4x3 cm.
© Fabre Minerals |
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Gartrellite Crystallography
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| Axial Ratios: |
a:b:c =0.9658:1:1.3424 |
| Cell Dimensions: |
a = 5.46, b = 5.653, c = 7.589, Z = 1; alpha = 67.68°, beta = 69.27°, gamma = 70.04° V = 190.49 Den(Calc)= 5.41 |
| Crystal System: |
Triclinic Space Group: P1,P 1 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.948(1), 2.899(0.81), 2.503(0.66), |
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Physical Properties of Gartrellite
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| Color: |
Greenish yellow, Yellow. |
| Diaphaneity: |
Transparent |
| Fracture: |
Friable - The crumbly disintegration of earthy materials or highly fractured minerals. |
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
| Hardness: |
1-2 - Between Talc and Gypsum |
| Luster: |
Earthy (Dull) |
| Streak: |
yellow |
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Optical Properties of Gartrellite
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| Gladstone-Dale: |
CI calc= -0.205 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1896,KC= 0.1573
Ncalc = 1.82 |
| Optical Data: |
Biaxial (+), a=1.94, b=1.98, g=2.06, bire=0.1200, 2V(Calc)=74, 2V(Meas)=78. |
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Calculated Properties of Gartrellite
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| Electron Density: |
Bulk Density (Electron Density)=4.68 gm/cc
note: Specific Gravity of Gartrellite =5.24 gm/cc.
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| Fermion Index: |
Fermion Index = 0.07
Boson Index = 0.93 |
| Photoelectric: |
PEGartrellite = 596.16 barns/electron
U=PEGartrellite x rElectron Density=2,789.29 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Gartrellite is Not Radioactive |
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Gartrellite Classification
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| Dana Class: |
43.02.02.01 (43)Compound Phosphates, etc. |
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(43.02)(Anhydrous Normal Compound Anions) |
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(43.02.02)Gartrellite Group |
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43.02.02.01 Gartrellite Pb(Cu,Fe)2(AsO4,SO4)2(CO3,H2O)0.7 P1,P 1 Tri |
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43.02.02.02 Zincgartrellite! Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2 P1 1 |
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43.02.02.03 Lukrahnite! Ca(Cu,Zn)(Fe,Zn)(AsO4)2(OH,H2O)2 P1 1 |
| Strunz Class: |
08.CG.20 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.C - Phosphates without Additional Anions, with H2O |
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08.CG -With large and medium-sized cations, RO4:H2O = 1:1 |
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08.CG.20 Gartrellite Pb(Cu,Fe)2(AsO4,SO4)2(CO3,H2O)0.7 P1,P 1 Tri |
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08.CG.20 Helmutwinklerite PbZn2(AsO4)2•2(H2O) P1 1 |
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08.CG.20 Phosphogartrellite! PbCuFe(PO4)2(OH,H2O)2 P1 1 |
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08.CG.20 Zincgartrellite! Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2 P1 1 |
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08.CG.20 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O) P1 1 |
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08.CG.20 Lukrahnite! Ca(Cu,Zn)(Fe,Zn)(AsO4)2(OH,H2O)2 P1 1 |
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Other Gartrellite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p932,1990) OPTIC PROP.(Am.Min.,Vol.75,p932,1990) |
| See Also: |
Links to other databases for Gartrellite :
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
15 - WWW-MINCRYST
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Gartrellite
Pb(Cu,Fe++)2(AsO4,SO4)2(CO3,H2O)0.7
Dana No: 43.02.02.01 Strunz No: 08.CG.20
Locality:
Notes:
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