Koninckite Mineral Data

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.

Name Pronunciation:

Koninckite + Pronunciation

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:

Tetragonal Space 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

Diaphaneity:

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
Ncalc = 1.66 - 1.72

Optical Data:

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

Calculated Properties of Koninckite

Electron Density:

Bulk Density (Electron Density)=2.41 gm/cc
note: Specific Gravity of Koninckite =2.40 gm/cc.

Fermion Index:

Fermion Index = 0.0060460613
Boson Index = 0.9939539387

Photoelectric:

PE_Koninckite= 8.70 barns/electron
U=PE_Koninckite x rElectron Density= 21.00 barns/cc.

Radioactivity:

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

Koninckite Classification

Dana Class:

40.04.02.01 (40)Hydrated Phosphates, etc

(40.04)where A+++ XO4 � x(H2O)

(40.04.02)Dana Group

40.04.02.01 Koninckite FePO4•3(H2O)(?) Unk Tetra

Strunz Class:

08.CE.55 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CE -With only medium-sized cations, RO4:H2O � 1:2.5

08.CE.55 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 - 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

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

Koninckite

Fe+++PO4•3(H2O) (?)
Dana No: 40.04.02.01 Strunz No: 08.CE.55
Locality:

Notes:

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