Koninckite Mineral Data

Koninckite Mineral Data +

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General Koninckite Information

Chemical Formula:

Fe+++PO4·3(H2O) (?)

Composition:

Molecular Weight = 204.86 gm

Iron 27.26 % Fe 38.98 % Fe₂O₃

Phosphorus 15.12 % P 34.64 % P₂O₅

Hydrogen 2.95 % H 26.38 % H₂O

Oxygen 54.67 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺(PO₄)·3(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1883

Locality:

Richelle, Vise, near Liege, Belgium. Link to MinDat.org Location Data.

Name Origin:

Named for Laurent Guillaumen de Koninck (1809-1887), Belgian geologist.

Koninckite Image

Images:

Koninckite

Comments: Pale pink botryoidal crust of koninckite on rock.
Location: Richelle, Liege, Belgium. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Koninckite Crystallography

Axial Ratios:

a:c = 1:1.21506

Cell Dimensions:

a = 11.95, c = 14.52, Z = 16; V = 2,073.49 Den(Calc)= 2.62

Crystal System:

TetragonalSpace Group: Unk

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

By Intensity(I/I_o): 8.47(1), 3.79(0.3), 2.99(0.2),3.85(0.2), 3.36(0.1), 3.66(0.1), 4.52(0.1), 6(0.1),

Physical Properties of Koninckite

Cleavage:

[???] Good

Color:

Yellow, White.

Density:

2.4

Diaphaniety:

Transparent

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Spherical - Spherical, rounded aggregates.

Hardness:

3.5-4 - Copper Penny-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Koninckite

Gladstone-Dale:

CI meas= 0.015 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.097 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.249,KPDmeas= 0.2718,KC= 0.2759

Optical Data:

Biaxial (?), a=1.645, b=1.656, g=1.656, bire=0.0110

Calculated Properties of Koninckite

Electron Density:

r_electron=2.41 gm/cc
note: r_Koninckite=2.40 gm/cc.

Fermion Index

Fermion Index = 0.00604
Boson Index = 0.99396

Photoelectric:

PE_Koninckite= 8.70 barns/electron
U=PE_Koninckite x r_electron= 21.00 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Koninckite is Not Radioactive

Koninckite Classification

Dana Class:

40.4.2.1 (40)Hydrated Phosphates, etc

(40.4)where A+++ XO4 · x(H2O)

(40.4.2)Dana Group

40.4.2.1 Koninckite FePO4·3(H2O)(?) Unk Tetra

Strunz Class:

VII/C.09-90 VII - Phosphates, Arsenates and Vanadates

VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg

VII/C.09 - Variscite group

VII/C.09-10 Metavariscite AlPO4·2(H2O) P 2₁/n 2/m

VII/C.09-20 Phosphosiderite FePO4·2(H2O) P 2₁/n 2/m

VII/C.09-30 Kolbeckite ScPO4·2(H2O) P 2₁2₁2₁ 2 2 2

VII/C.09-35 Malhmoodite FeZr(PO4)2·4(H2O) P 2₁/c 2/m

VII/C.09-50 Variscite AlPO4·2(H2O) Pcab 2/m 2/m 2/m

VII/C.09-60 Strengite FePO4·2(H2O) Pcab 2/m 2/m 2/m

VII/C.09-70 Mansfieldite AlAsO4·2(H2O) Pcab 2/m 2/m 2/m

VII/C.09-80 Scorodite FeAsO4·2(H2O) Pcab 2/m 2/m 2/m

VII/C.09-85 Yanomamite In(AsO4)·2(H2O) P bca 2/m 2/m 2/m

VII/C.09-88 Parascorodite! FeAsO4·2(H2O) HEX ? Hex

VII/C.09-90 Koninckite FePO4·3(H2O)(?) Unk Tetra

Other Koninckite Information

References:

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

See Also:

Links to other databases for Koninckite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Koninckite

Fe+++PO4·3(H2O) (?)
Dana No: 40.4.2.1 Strunz No: VII/C.09-90
Locality:

Notes: