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Canaphite

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Formula:
Na2Ca(P2O7) · 4H2O
System:
Monoclinic
Colour:
Colourless
Lustre:
Vitreous
Hardness:
2
Name:
Named in 1985 by Donald Ralph Peacor, Pete J. Dunn, William B. Simmons, and Fred John Wicks after its composition, containing CAlcium, sodium (Latin = NAtrium), and PHophorus.
The mineral consists of tiny colorless needles (to about 100 +/- microns) completely covering pieces of stilbite. The type material came from mineral collector, Sid Steris, who on being told of its being named a new mineral revealed that he had cleaned the lot is a mild phosphoric acid solution and who believed the efflorescence of needles were just a result of chemical cleaning of the stilbite.

Classification of Canaphite

Approved 1983
8.FC.10

8 : PHOSPHATES, ARSENATES, VANADATES
F : Polyphosphates, Polyarsenates, [4]-Polyvanadates
C : Polyphosphates, etc., with H2O only
40.7.4.

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
7 : Miscellaneous
19.4.6

19 : Phosphates
4 : Phosphates of Ca
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Type Occurrence of Canaphite

Year of Discovery:
1983

Physical Properties of Canaphite

Vitreous
Colour:
Colourless
Streak:
White
Hardness (Mohs):
2

Crystallography of Canaphite

Crystal System:
Monoclinic

Optical Data of Canaphite

Type:
Biaxial (-)
RI values:
nα = 1.496 nβ = 1.504 nγ = 1.506
2V:
Measured: 52° , Calculated: 52°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
relatively weak

Chemical Properties of Canaphite

Formula:
Na2Ca(P2O7) · 4H2O
All elements listed in formula:

Relationship of Canaphite to other Species

8.FC.05FianeliteMn22+((V,As)2O7) · 2H2O
8.FC.15PintadoiteCa2(V2O7) · 9H2O
8.FC.20Arnhemite(K,Na)4Mg2(P2O7)2 · 5H2O
8.FC.25WooldridgeiteNa2CaCu22+(P2O7)2 · 10H2O
8.FC.30KanoneroviteNa3Mn2+(P3O10) · 12H2O
19.4.1MonetiteCa(HPO4)
19.4.2HydroxylapatiteCa5(PO4)3(OH)
19.4.3BrushiteCa(HPO4) · 2H2O
19.4.4IsoclasiteCa2(PO4)(OH) · 2H2O
19.4.5BuchwalditeNaCa(PO4)
19.4.7Mundrabillaite(NH4)2Ca(HPO4)2 · H2O
19.4.8WhitlockiteCa9Mg(PO4)6(HPO4)
19.4.9BrianiteNa2CaMg(PO4)2
19.4.10Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2O

Other Names for Canaphite

Name in Other Languages:
German:Canaphit
Spanish:Canaphita

Other Information

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 Canaphite

Reference List:
American Mineralogist: 73: 168-171.

Mineralogical Record: 16: 467-468.

Internet Links for Canaphite

Localities for Canaphite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
USA (TL)
 
  • New Jersey
    • Passaic Co.
      • Little Falls Township
        • Great Notch
Peacor, et al (1985), Steriss, et al (1987)
Mineral and/or Locality  
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