Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Caoxite

Big Photo

Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, Italy
© Thomas Witzke

Show Caoxite Photos (2)
Formula:
Ca[C
 
2
O
 
4
] · 3H
 
2
O
System:TriclinicLustre:Vitreous
Hardness:2 - 2½
Name:For the acronym of "Centennial Anniversary Of X-rays" and also for Calcium Oxalate.
This page provides mineralogical data about Caoxite.

Classification of Caoxite

IMA status:Approved
Strunz 8th edition ID:9/A.01-25
Nickel-Strunz 10th (pending) edition ID:10.AB.50

10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates
mindat.org URL:http://www.mindat.org/min-6845.html
Please feel free to link to this page.

Type Occurrence of Caoxite

Type Locality:Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, Italy

Physical Properties of Caoxite

Lustre:Vitreous
Hardness (Mohs):2 - 2½

Crystallography of Caoxite

Crystal System:Triclinic

Optical Data of Caoxite

Type:Biaxial (-)
RI values: nα = 1.483 nβ = 1.516 nγ = 1.533
Maximum Birefringence:δ = 0.050

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:relatively strong

Chemical Properties of Caoxite

Formula:
Ca[C
 
2
O
 
4
] · 3H
 
2
O
Essential elements:C, Ca, H, O
All elements listed in formula:C, Ca, H, O

Relationship of Caoxite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
10.AB.05Humboldtine
Fe[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.05Lindbergite
Mn
2+
 
[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.10Glushinskite
Mg[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.15Moolooite
Cu[C
 
2
O
 
4
]·0.4H
 
2
O
10.AB.20Stepanovite
NaMgFe
3+
 
[C
 
2
O
 
4
]
 
3
 · 8-9H
 
2
O
10.AB.25Minguzzite
K
 
3
Fe
3+
 
[C
 
2
O
 
4
]
 
3
 · 3H
 
2
O
10.AB.30Wheatleyite
Na
 
2
Cu[C
 
2
O
 
4
]
 
2
 · 2H
 
2
O
10.AB.35Zhemchuzhnikovite
NaMg(Fe
3+
 
,Al)[C
 
2
O
 
4
]
 
3
 · 8H
 
2
O
10.AB.40Weddellite
Ca[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.45Whewellite
Ca[C
 
2
O
 
4
] · H
 
2
O
10.AB.55Oxammite
(NH
 
4
)
 
2
[C
 
2
O
 
4
] · H
 
2
O
10.AB.60Natroxalate
Na
 
2
[C
 
2
O
 
4
]
10.AB.65Coskrenite-(Ce)
(Ce,Nd,La)
 
2
[(SO
 
4
)
 
2
|C
 
2
O
 
4
] · 12H
 
2
O
10.AB.70Levinsonite-(Y)
(Y,Nd,La)Al(SO
 
4
)
 
2
(C
 
2
O
 
4
)·12H
 
2
O
10.AB.75Zugshunstite-(Ce)
(Ce,Nd,La)Al(SO
 
4
)
 
2
(C
 
2
O
 
4
)·12H
 
2
O
10.AB.80Novgorodovaite
Ca
 
2
[Cl
 
2
|C
 
2
O
 
4
] · 2H
 
2
O

Other Names for Caoxite

Synonyms:
IMA1996-012
Other Languages:
German:Caoxit
Spanish:Caoxita

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 Caoxite

Reference List:Mineralogical Record: 29: 234.

Neues Jahrbuch für Mineralogie, Monatshefte (1997): 1997(2): 84-96.

Internet Links for Caoxite

Search Engines:
  • Look for Caoxite on Google
  • Look for Caoxite images on Google
    • External Links:
  • Look for Caoxite on Webmineral
  • Look for Caoxite on Athena Mineralogy
  • Look for Caoxite on Wikipedia
  • Look for Caoxite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Caoxite in the Natural History Museum (London) online catalogue
  • Caoxite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • rare and unusual minerals mainly crystallized
  • High-end worldwide specimens & outstanding customer service
  • Search for - Caoxite - on e-Rocks Mineral Sales & Auctions
  • Rare and Unusual minerals at Mineralogical Research Company
  • Find Caoxite on www.crystalclassics.co.uk
  • Buy fine minerals and gemstones from Pala International
  • Wilensky Fine Minerals
  • Fine Minerals from Dan Weinrich Minerals
  • Fabre Minerals - search for Caoxite specimens
  • Edwards Minerals - Fine Specimens
  • Lapis Mineral Magazin
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Caoxite

    (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.
    Italy
     
    • Liguria
      • La Spezia Province
        • Vara Valley
          • Borghetto Vara
    		[MinRec 32:211]
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    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: 6th Nov 2009 13:43:58