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Agrinierite

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Margnac Mine, Compreignac, Haute-Vienne, Limousin, France
© 2007, JGW

Formula:
K
 
2
(Ca,Sr)(UO
 
2
)
 
3
O
 
3
(OH)
 
2
 · 5H
 
2
O
System:OrthorhombicColour:Orange
Name:Named after Henri Agrinier (1928-1971), an engineer in the Mineralogy Laboratory of the French Atomic Energy Commission, Paris, France.
This page provides mineralogical data about Agrinierite.

Classification of Agrinierite

IMA status:Approved 1971
Strunz 8th edition ID:4/H.02-10
Nickel-Strunz 10th (pending) edition ID:4.GB.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
B : With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
Dana 8th edition ID:5.5.1.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
5 : AX3O10·xH2O
Hey's CIM Ref.:7.16.13

7 : Oxides and Hydroxides
16 : Oxides of U
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Type Occurrence of Agrinierite

Type Locality:Margnac Mine, Compreignac, Haute-Vienne, Limousin, France
Geological Setting of type material:oxidation zone of a uranium deposit
Associated Minerals at type locality:
UranophaneGummite

Physical Properties of Agrinierite

Diaphaneity (Transparency):Transparent, Translucent
Colour:Orange
Cleavage:Distinct/Good
on {001}
Density (measured):5.7 g/cm3
Density (calculated):5.55 g/cm3

Crystallography of Agrinierite

Crystal System:Orthorhombic
Cell Parameters:a = 14.04Å, b = 24.07Å, c = 14.13Å
Ratio:a:b:c = 0.583 : 1 : 0.587
Unit Cell Volume:V 4,775.13 ų (Calculated from Unit Cell)
Z:16
Morphology:Crystals tabular on {001}, pseudohexagonal in section
Twinning:Sector twins with composition plane {110}
X-Ray Powder Diffraction:
d-spacingIntensity
2.023 (s)
3.128 (vvs)
3.153 (vs)
3.485 (vs)
3.516 (s)
6.05 (ms)
Comments:Sample from the type locality

Optical Data of Agrinierite

Type:Biaxial (-)
Dispersion:relatively weak

Chemical Properties of Agrinierite

Formula:
K
 
2
(Ca,Sr)(UO
 
2
)
 
3
O
 
3
(OH)
 
2
 · 5H
 
2
O
Essential elements:H, K, O, U
All elements listed in formula:Ca, H, K, O, Sr, U
Analyical Data:Sample from Margnac Mine, France
Analytical results by electron microprobe, water by thermogravimetry (TGA)
Empirical formula based on three uranium and ten oxygen atoms per formula unit
UO3 (85.15)
CaO (2.20)
SrO (2.05)
K2O (3.35)
H2O (7.45)

sum 100.20 wt.-%
Empirical Formula:
(Ca
 
0.40
K
 
0.36
Sr
 
0.20
)
 
Σ=0.96
U
 
3.00
O
 
10
 · 4.17H
 
2
O

Relationship of Agrinierite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.GB.05Compreignacite
K
 
2
(UO
 
2
)
 
6
O
 
4
(OH)
 
6
 · 7H
 
2
O
4.GB.05Rameauite
K
 
2
Ca(UO
 
2
)
 
6
(OH)
 
16
 · H
 
2
O
4.GB.10Becquerelite
Ca(UO
 
2
)
 
6
O
 
4
(OH)
 
6
 · 8H
 
2
O
4.GB.10Billietite
Ba(UO
 
2
)
 
6
O
 
4
(OH)
 
6
 · 4-8H
 
2
O
4.GB.10Protasite
Ba(UO
 
2
)
 
3
O
 
3
(OH)
 
2
 · 3H
 
2
O
4.GB.15Richetite
PbU
 
4
O
 
13
·4H
 
2
O
4.GB.20Bauranoite
Ba(UO
 
2
)
 
2
(OH)
 
6
 · 1-2H
 
2
O
4.GB.20Calciouranoite
(Ca,Ba,Pb)U
 
2
O
 
7
·5H
 
2
O
4.GB.20Metacalciouranoite
(Ca,Ba,Na
 
2
)U
 
2
O
 
7
·2H
 
2
O
4.GB.25Fourmarierite
PbU
 
4
O
 
13
·4H
 
2
O
4.GB.30Wölsendorfite
(Pb,Ca)U
 
2
O
 
7
·2H
 
2
O
4.GB.35Masuyite
Pb(UO
 
2
)
 
3
O
 
3
(OH)
 
2
 · 3H
 
2
O
4.GB.40Metavandendriesscheite
PbU
 
7
O
 
22
·nH
 
2
O n < 12
4.GB.40Vandendriesscheite
PbU
 
7
O
 
22
·12H
 
2
O
4.GB.45Vandenbrandeite
Cu(UO
 
2
)(OH)
 
4
4.GB.50Sayrite
Pb
 
2
(UO
 
2
)
 
5
O
 
6
(OH)
 
2
·4H
 
2
O
4.GB.55Curite
Pb
 
3
(UO
 
2
)
 
8
O
 
8
(OH)
 
6
·2H
 
2
O
4.GB.60Iriginite
UO
 
2
Mo
 
2
O
 
7
·3H
 
2
O
4.GB.65Uranosphaerite
Bi(UO
 
2
)O
 
2
(OH)
4.GB.70Holfertite
Ca
 
x
U
6+
2-x
Ti(O
 
8-x
OH
 
4x
) · 3H
 
2
O
Related Minerals - Hey's Index Grouping:
7.16.1Uraninite
UO
 
2
7.16.2Schoepite
(UO
 
2
)
 
8
O
 
2
(OH)
 
12
 · 12H
 
2
O
7.16.3Paraschoepite
UO
 
3
 · 2H
 
2
O
7.16.4Metaschoepite
UO
 
3
 · 1-2H
 
2
O
7.16.5Metastudtite
UO
 
4
 · 2H
 
2
O
7.16.6Studtite
UO
 
4
 · 4H
 
2
O
7.16.7Ianthinite
U
4+
 
(UO
 
2
)
 
5
O
 
7
 · 10H
 
2
O
7.16.8Compreignacite
K
 
2
(UO
 
2
)
 
6
O
 
4
(OH)
 
6
 · 7H
 
2
O
7.16.9Vandenbrandeite
Cu(UO
 
2
)(OH)
 
4
7.16.10Roubaultite
Cu
 
2
(UO
 
2
)
 
3
(OH)
 
10
 · 5H
 
2
O
7.16.11Becquerelite
Ca(UO
 
2
)
 
6
O
 
4
(OH)
 
6
 · 8H
 
2
O
7.16.12Rameauite
K
 
2
Ca(UO
 
2
)
 
6
(OH)
 
16
 · H
 
2
O
7.16.14Protasite
Ba(UO
 
2
)
 
3
O
 
3
(OH)
 
2
 · 3H
 
2
O
7.16.15Billietite
Ba(UO
 
2
)
 
6
O
 
4
(OH)
 
6
 · 4-8H
 
2
O
7.16.16Bauranoite
Ba(UO
 
2
)
 
2
(OH)
 
6
 · 1-2H
 
2
O
7.16.17Metacalciouranoite
(Ca,Ba,Na
 
2
)U
 
2
O
 
7
·2H
 
2
O
7.16.18Calciouranoite
(Ca,Ba,Pb)U
 
2
O
 
7
·5H
 
2
O
7.16.19Orthobrannerite
UTi
 
4
O
 
12
(OH)
 
2
7.16.20Thorutite
(Th,U,Ca)Ti
 
2
(O,OH)
 
6
7.16.21Davidite-(La)
(La,Ce)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
7.16.22Davidite-(Ce)
(Ce,La)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
7.16.23Brannerite
(U
4+
 
,Ca)(Ti,Fe
3+
 
)
 
2
O
 
6
7.16.24Fourmarierite
PbU
 
4
O
 
13
·4H
 
2
O
7.16.25Richetite
PbU
 
4
O
 
13
·4H
 
2
O
7.16.26Curite
Pb
 
3
(UO
 
2
)
 
8
O
 
8
(OH)
 
6
·2H
 
2
O
7.16.27Masuyite
Pb(UO
 
2
)
 
3
O
 
3
(OH)
 
2
 · 3H
 
2
O
7.16.28Vandendriesscheite
PbU
 
7
O
 
22
·12H
 
2
O
7.16.29Metavandendriesscheite
PbU
 
7
O
 
22
·nH
 
2
O n < 12
7.16.30Sayrite
Pb
 
2
(UO
 
2
)
 
5
O
 
6
(OH)
 
2
·4H
 
2
O
7.16.31Wölsendorfite
(Pb,Ca)U
 
2
O
 
7
·2H
 
2
O
7.16.32Clarkeite
(Na,Ca,Pb)
 
2
U
 
2
(O,OH)
 
7
7.16.33Uranosphaerite
Bi(UO
 
2
)O
 
2
(OH)

Other Names for Agrinierite

Synonyms:
IMA1971-046
German names:
Agrinierit
Russian names:
Агриньерит
Spanish names:
Agrinierita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Agrinierite

Reference List:Cesbron, F., Brown, W. L., Bariand, P. and Geffroy, J. (1972): Rameauite and Agrinierite, two new hydrated complex uranyl oxides from Margnac, France. Mineralogical Magazine 38, 781-789. - American Mineralogist (1973) 58, 805 (abstract).

Cahill, C. L. and Burns, P. C. (2000): The structure of agrinierite, a Sr containing uranyl oxide hydrate mineral. American Mineralogist 85, 1294-1297.

Anthony, J. W., Bideaux, R. A., Bladh, K. W. and Nichols, M. C. (1997): Handbook of Mineralogy, Volume 3: Halides, Hydroxides, Oxides. Mineral Data Publishing (Tucson, AZ), 6.

Burns, P. C. (2005): U6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist 43, 1839-1894.

Internet Links for Agrinierite

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    Localities for Agrinierite

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    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    France
     
    • Limousin
      • Haute-Vienne
        • Compreignac
    		Min.Mag.(1972) 38, 781-789
    Mineral and/or Locality
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