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Micheelsenite

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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
© SMS 2006

Show Micheelsenite Photos (7)
Formula:
(Ca,Y)
 
3
Al(PO
 
3
OH,CO
 
3
)(CO
 
3
)(OH)
 
6
·12H
 
2
O
System:HexagonalColour:White to colourless
Lustre:VitreousHardness:3½ - 4
This page provides mineralogical data about Micheelsenite.

Classification of Micheelsenite

IMA status:Approved
Nickel-Strunz 10th (pending) edition ID:8.DO.30

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
O : With CO3, SO4, SiO4
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Type Occurrence of Micheelsenite

Co-type Localities:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
Nanna pegmatite, Narsaarsuup Qaava, Narssârssuk (Narsarsuk), Igaliku (Igaliko), Narsaq, Kitaa (West Greenland) Province, Greenland

Physical Properties of Micheelsenite

Lustre:Vitreous
Colour:White to colourless
Streak:White
Hardness (Mohs):3½ - 4

Crystallography of Micheelsenite

Crystal System:Hexagonal

Optical Data of Micheelsenite

Type:Uniaxial (-)
RI values: nω = 1.532 nε = 1.503
Maximum Birefringence:δ = 0.029

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

Chemical Properties of Micheelsenite

Formula:
(Ca,Y)
 
3
Al(PO
 
3
OH,CO
 
3
)(CO
 
3
)(OH)
 
6
·12H
 
2
O
Essential elements:Al, C, Ca, H, O, P
All elements listed in formula:Al, C, Ca, H, O, P, Y

Relationship of Micheelsenite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DO.05Girvasite
NaCa
 
2
Mg
 
3
[(OH)
 
2
|CO
 
3
|H
 
2
PO
 
4
|(PO
 
4
)
 
2
] · 4H
 
2
O
8.DO.10Voggite
Na
 
2
Zr[OH|CO
 
3
|PO
 
4
] · 2H
 
2
O
8.DO.15Peisleyite
Na
 
3
Al
 
16
[SO
 
4
|(PO
 
4
)
 
5
]
 
2
 · 20H
 
2
O
8.DO.20Perhamite
(Ca,Sr)
 
3
Al
 
7.7
Si
 
3
P
 
4
O
 
23.5
(OH)
 
14.1
·8H
 
2
O
8.DO.25Saryarkite-(Y)
Ca(Y,Th)Al
 
5
(SiO
 
4
)
 
2
(PO
 
4
,SO
 
4
)
 
2
(OH)
 
7
·6H
 
2
O
8.DO.40Parwanite
(Na,K)(Mg,Ca)
 
4
Al
 
8
(PO
 
4
)
 
8
(CO
 
3
)(OH)
 
7
·30H
 
2
O
8.DO.45Skorpionite
Ca
 
3
Zn
 
2
[(OH)
 
2
|CO
 
3
|(PO
 
4
)
 
2
] · H
 
2
O

Other Names for Micheelsenite

Synonyms:
IMA1999-033Unnamed (MSH UK-32)
Other Languages:
German:Micheelsenit
Spanish:Micheelsenita

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 Micheelsenite

Reference List:Neues Jahrbuch für Mineralogie, Monatshefte (2001): 337-351.

Internet Links for Micheelsenite

Search Engines:
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    • External Links:
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  • Look for Micheelsenite on Wikipedia
  • Look for Micheelsenite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Micheelsenite in the Natural History Museum (London) online catalogue
  • Micheelsenite details from Handbook of Mineralogy (PDF)
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  • rare and unusual minerals mainly crystallized
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    Localities for Micheelsenite

    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.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		[N. Jahrb.Min.,Mh.(2001) 337-351; MinRec 33:165]
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Igaliku (Igaliko)
          • Narssârssuk (Narsarsuk)
            • Narsaarsuup Qaava
    		[MinRec 33:165]
    Rwanda
     
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Mineral and/or Locality
    Google
     
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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: 10th Nov 2009 21:19:41