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Caoxite

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Formula:
Ca(C2O4) · 3H2O
Lustre:
Vitreous
Hardness:
2 - 2½
Crystal System:
Triclinic
Name:
For the acronym of "Centennial Anniversary Of X-rays" and also for Calcium Oxalate.
This page provides mineralogical data about Caoxite.


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Classification of CaoxiteHide

Approved
10.AB.50

10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates

Physical Properties of CaoxiteHide

Vitreous
Hardness:
2 - 2½ on Mohs scale

Optical Data of CaoxiteHide

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

Formula:
Ca(C2O4) · 3H2O
IMA Formula:
CaC2O4 · 3H2O

Crystallography of CaoxiteHide

Crystal System:
Triclinic

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.92 (m)
5.26 (m)
5.52 (vs)
4.99 (m)
3.643 (m)
2.834 (s)
2.758 (m)

Type Occurrence of CaoxiteHide

Synonyms of CaoxiteHide

Other Language Names for CaoxiteHide

German:Caoxit
Spanish:Caoxita

Related Minerals - Nickel-Strunz GroupingHide

10.AB.05HumboldtineFe2+(C2O4) · 2H2OMon. 2/m
10.AB.05LindbergiteMn2+(C2O4) · 2H2OMon. 2/m
10.AB.10GlushinskiteMg(C2O4) · 2H2OMon.
10.AB.15MoolooiteCu(C2O4) · 0.4H2OOrth.
10.AB.20StepanoviteNaMgFe3+(C2O4)3 · 8-9H2OTrig. 3m : P3c1
10.AB.25MinguzziteK3Fe3+(C2O4)3 · 3H2OMon. 2/m : P21/b
10.AB.30WheatleyiteNa2Cu(C2O4)2 · 2H2OTric.
10.AB.35ZhemchuzhnikoviteNaMgAl(C2O4)3 · 8H2OTrig. 3m : P3c1
10.AB.40WeddelliteCa(C2O4) · (2.5-x)H2OTet. 4/m : I4/m
10.AB.45WhewelliteCa(C2O4) · H2OMon. 2/m : P21/b
10.AB.55Oxammite(NH4)2(C2O4) · H2OOrth. 2 2 2 : P21 21 2
10.AB.60NatroxalateNa2(C2O4)Mon.
10.AB.65Coskrenite-(Ce)(Ce,Nd,La)2(C2O4)(SO4)2 · 12H2OTric.
10.AB.70Levinsonite-(Y)(Y,Nd,La)Al(C2O4)(SO4)2 · 12H2OMon. 2/m
10.AB.75Zugshunstite-(Ce)(Ce,Nd,La)Al(C2O4)(SO4)2 · 12H2OMon.
10.AB.80NovgorodovaiteCa2(C2O4)Cl2 · 2H2OMon. 2/m

Other InformationHide

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

References for CaoxiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mineralogical Record: 29: 234.
Neues Jahrbuch für Mineralogie, Monatshefte (1997): 1997(2): 84-96.

Internet Links for CaoxiteHide

Localities for CaoxiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Italy (TL)
 
  • Liguria
    • La Spezia Province
      • Vara Valley
        • Borghetto Vara
[MinRec 32:211]
Mineral and/or Locality  
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