Kintoreite Mineral Data

General Kintoreite Information

Chemical Formula:

PbFe+++3(PO4)2(OH,H2O)6

Composition:

Molecular Weight = 668.24 gm

Iron 25.07 % Fe 35.85 % Fe₂O₃

Phosphorus 9.27 % P 21.24 % P₂O₅

Hydrogen 1.13 % H 10.11 % H₂O

Lead 31.01 % Pb 33.40 % PbO

Oxygen 33.52 % O

______ ______

100.00 % 100.60 % = TOTAL OXIDE

Empirical Formula:

PbFe³⁺₃(PO₄)₂(OH)_4.5(H₂O)_1.5

Environment:

Crusts line cavities in goethite. Encrustations on quartz and garnet-rich lode rocks.

IMA Status:

Approved IMA 1995

Locality:

Kintore opencut and Block 14 opencut, Broken Hill, New South Wales, Australia. Link to MinDat.org Location Data.

Name Origin:

For the locality.

Name Pronunciation:

Kintoreite + Pronunciation

Synonym:

ICSD 85127

IMA1992-045

PDF 47-1878

Kintoreite Image

Images:

Kintoreite

Comments: Yellow rounded crystal grains of kintoreite on limonite.
Location: Kintore Open Cut, Broken Hill, New South Wales, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Lusungite Kintoreite

Comments: Greenish-yellow kintoreite crystals on limonite and or goethite. The specimen was originally labelled lusungite in the early 1990's and reinvestigation of the specimen showed it to be kintoreite.
Location: Kintore Open Cut, Broken Hill, NSW, Australia. Scale: Specimen Size 3x6 cm.
© Diederik Visser

Kintoreite Crystallography

Axial Ratios:

a:c = 1:2.30716

Cell Dimensions:

a = 7.325, c = 16.9, Z = 3; V = 785.29 Den(Calc)= 4.24

Crystal System:

Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m

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

By Intensity(I/I_o): 3.07(1), 5.96(0.9), 3.67(0.6),

Physical Properties of Kintoreite

Cleavage:

{001} Good

Color:

Cream white, Yellowish green, Brownish yellow.

Density:

4.25 - 4.34, Average = 4.29

Diaphaneity:

Transparent to translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

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

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

4 - Fluorite

Luster:

Vitreous - Greasy

Streak:

pale yellowish green

Optical Properties of Kintoreite

Dichroism (e):

light yellowish green.

Dichroism (w):

medium yellow.

Gladstone-Dale:

CI meas= 0.051 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.039 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2217,KPDmeas= 0.2189,KC= 0.2306
Ncalc = 1.98 - 2

Optical Data:

Uniaxial (-), e=1.935, w=1.935-1.955, bire=0.0000-0.0200.

Calculated Properties of Kintoreite

Electron Density:

Bulk Density (Electron Density)=3.93 gm/cc
note: Specific Gravity of Kintoreite =4.24 gm/cc.

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Kintoreite= 522.23 barns/electron
U=PE_Kintoreite x rElectron Density=2,051.10 barns/cc.

Radioactivity:

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

Kintoreite Classification

Dana Class:

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

(42.07)where (AB)5 (XO4)3 Zq ï¿½ x(H2O)

(42.07.03)Crandallite Group

42.07.03.01 Crandallite CaAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

42.07.03.02 Gorceixite BaAl3(PO4)(PO3OH)(OH)6 R 3m 3 2/m

42.07.03.03 Goyazite SrAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

42.07.03.04 Lusungite? (Sr,Pb)Fe3(PO4)2(OH)5•(H2O) R 3m 3m

42.07.03.05 Plumbogummite PbAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

42.07.03.06 Kintoreite PbFe3(PO4)2(OH,H2O)6 R 3m 3 2/m

42.07.03.07 Benauite! HSrFe3(PO4)2(OH)6 R 3m 3 2/m

42.07.03.08 Springcreekite! BaV3(PO4)2(OH,H2O)6 R 3m 3 2/m

Strunz Class:

08.BL.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1

08.BL.10 Arsenogorceixite! BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6 R 3m 3 2/m

08.BL.10 Arsenocrandallite (Ca,Sr)Al3[(As,P)O4]2(OH)5•(H2O) R 3m 3m

08.BL.10 Ferrazite? (Pb,Ba)3(PO4)2•8(H2O)(?) Tri

08.BL.10 Arsenowaylandite* BiAl3(AsO4)2(OH)6 R 3m 3 2/m

08.BL.10 Benauite! HSrFe3(PO4)2(OH)6 R 3m 3 2/m

08.BL.10 Arsenogoyazite (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5•(H2O) R 3m 3 2/m

08.BL.10 Dussertite BaFe3(AsO4)2(OH)5 R 3m 3m

08.BL.10 Crandallite CaAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

08.BL.10 Goyazite SrAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

08.BL.10 Gorceixite BaAl3(PO4)(PO3OH)(OH)6 R 3m 3 2/m

08.BL.10 Kintoreite PbFe3(PO4)2(OH,H2O)6 R 3m 3 2/m

08.BL.10 Lusungite? (Sr,Pb)Fe3(PO4)2(OH)5•(H2O) R 3m 3m

08.BL.10 Philipsbornite PbAl3(AsO4)2(OH)5•(H2O) R 3m-,R 3m Trig

08.BL.10 Plumbogummite PbAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

08.BL.10 Segnitite PbFe3H(AsO4)2(OH)6 R 3m 3 2/m

08.BL.10 Springcreekite! BaV3(PO4)2(OH,H2O)6 R 3m 3 2/m

Other Kintoreite Information

References:

NAME( MinRec) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(MinRec)

See Also:

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

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Print or Cut-and-Paste your Kintoreite Specimen Label here :

Kintoreite

PbFe+++3(PO4)2(OH,H2O)6
Dana No: 42.07.03.06 Strunz No: 08.BL.10
Locality:

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