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Wooldridgeite

Formula:
CaNa
 
2
Cu
2+
2
[P
 
2
O
 
7
]
 
2
 · 10H
 
2
O
System:OrthorhombicColour:Blue-green
Lustre:VitreousHardness:2 - 3
Name:Named after James Wooldridge (1923-1995), keen amateur mineralogist, micromounter and gemologist from Fernhill Heath, Worcestershire, U.K., who discovered the mineral.


A diphosphate (pyrophosphate)

Classification of Wooldridgeite

IMA status:Approved 1997
Strunz 8th edition ID:7/C.35-20
Nickel-Strunz 10th (pending) edition ID:8.FC.25

8 : PHOSPHATES, ARSENATES, VANADATES
F : Polyphosphates, Polyarsenates, [4]-Polyvanadates
C : Polyphosphates, etc., with H2O only
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Type Occurrence of Wooldridgeite

Type Locality:Judkins Quarry, Nuneaton, Warwickshire, England, UK

Physical Properties of Wooldridgeite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Blue-green
Streak:Very pale blue
Hardness (Mohs):2 - 3

Crystallography of Wooldridgeite

Crystal System:Orthorhombic

Optical Data of Wooldridgeite

Type:Biaxial (+)
RI values: nα = 1.508 nβ = 1.511 nγ = 1.517
2V:Measured: 76° , Calculated: 72°
Maximum Birefringence:δ = 0.009

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none

Chemical Properties of Wooldridgeite

Formula:
CaNa
 
2
Cu
2+
2
[P
 
2
O
 
7
]
 
2
 · 10H
 
2
O
Essential elements:Ca, Cu, H, Na, O, P
All elements listed in formula:Ca, Cu, H, Na, O, P

Relationship of Wooldridgeite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.FC.05Fianelite
Mn
2+
2
V
5+
 
(V
5+
 
,As
5+
 
)O
 
7
·2H
 
2
O
8.FC.10Canaphite
CaNa
 
2
[P
 
2
O
 
7
] ·4H
 
2
O
8.FC.15Pintadoite
Ca
 
2
V
 
2
O
 
7
·9H
 
2
O
8.FC.20Arnhemite
(K,Na)
 
4
Mg
 
2
(P
 
2
O
 
7
)·5H
 
2
O
8.FC.30Kanonerovite
MnNa
 
3
P
 
3
O
 
10
 * 12 H
 
2
O

Other Names for Wooldridgeite

Synonyms:
IMA1997-037Woolridgeite
Other Languages:
German:Wooldridgeit
Woolridgeit
Russian:Вулдриджеит
Spanish:Wooldridgeita
Woolridgeita

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 Wooldridgeite

Reference List:Canadian Mineralogist (1999): 37: 73-81.

Mineralogical Magazine: 63: 13-16.

Internet Links for Wooldridgeite

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    Localities for Wooldridgeite

    Hide Locality List
    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.
    (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.
    UK
     
    • England
      • Warwickshire
        • Nuneaton
    		Mineralogical Magazine: 63: 13-16.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 16th Nov 2009 09:34:22