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Micheelsenite

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Big Photo

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

Show Micheelsenite Photos (7)



Formula:
(Ca,Y)
 
3
Al(HPO
 
4
,CO
 
3
)(CO
 
3
)(OH)
 
6
 · 12H
 
2
O
System:HexagonalColour:White to colourless
Lustre:VitreousHardness:3½ - 4
Member of:Ettringite Group


Ettringite Group.

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; Carrière Mont Saint-Hilaire), 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(HPO
 
4
,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

Member of:Ettringite Group
Other Members of Group:

- +
Bentorite
Ca
 
6
(Cr
3+
 
,Al)
 
2
(SO
 
4
)
 
3
(OH)
 
12
 · 26H
 
2
O
Buryatite
Ca
 
3
(Si,Fe,Al)(SO
 
4
)[B(OH)
 
4
]O(OH)
 
5
 · 12H
 
2
O
Carraraite
Ca
 
3
(SO
 
4
)[Ge(OH)
 
6
](CO
 
3
) · 12H
 
2
O
Charlesite
Ca
 
6
(Al,Si)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH,O)
 
12
 · 26H
 
2
O
Ettringite
Ca
 
6
Al
 
2
(SO
 
4
)
 
3
(OH)
 
12
 · 26H
 
2
O
Jouravskite
Ca
 
6
Mn
3+
2
(SO
 
4
,CO
 
3
)
 
3
(OH)
 
12
 · 26H
 
2
O
Sturmanite
Ca
 
6
(Fe
3+
 
,Al,Mn
3+
 
)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH)
 
12
 · 25H
 
2
O
Thaumasite
Ca
 
3
(SO
 
4
)[Si(OH)
 
6
](CO
 
3
) · 12H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DO.05Girvasite
NaCa
 
2
Mg
 
3
(PO
 
4
)
 
2
(H
 
2
PO
 
4
)(CO
 
3
)(OH)
 
2
 · 4H
 
2
O
8.DO.10Voggite
Na
 
2
Zr(PO
 
4
)(CO
 
3
)(OH) · 2H
 
2
O
8.DO.15Peisleyite
Na
 
3
Al
 
16
(PO
 
4
)
 
10
(SO
 
4
)
 
2
(OH)
 
17
 · 20H
 
2
O
8.DO.20Perhamite
(Ca,Sr)
 
3
Al
 
7
(PO
 
4
)
 
4
(SiO
 
4
)
 
3
(OH)
 
3
 · 16.5H
 
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
(PO
 
4
)
 
2
(CO
 
3
)(OH)
 
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:

- +
McDonald, A.M., Petersen, O.V., Gault, R.A., Johnsen, O., Niedrmayr, G., Brandstätter, F. & Giester, G.(2001): Micheelsenite,(Ca,Y)3Al(PO3OH,CO3)(CO3)(OH)6 · 12H2O, a new mineral from Mont Saint-Hilaire, Québec, Canada and the Nanna pegmatite, Narsaarsuup Qaava, South Greenland. Neues Jahrbuch fur Mineralogie, Monatshehefte, 2001 (8), 337-351

Internet Links for Micheelsenite

Search Engines:
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    • External Links:
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  • Look for Micheelsenite on Athena Mineralogy
  • Look for Micheelsenite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Micheelsenite details from Handbook of Mineralogy (PDF)
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    • Localities for Micheelsenite

    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.
    Hide Locality List
    (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
    		McDonald, A.M., Petersen, O.V., Gault, R.A., Johnsen, O., Niedrmayr, G., Brandstätter, F. & Giester, G.(2001): Micheelsenite,(Ca,Y)3Al(PO3OH,CO3)(CO3)(OH)6 · 12H2O, a new mineral from Mont Saint-Hilaire, Québec, Canada and the Nanna pegmatite, Narsaarsuup Qaava, South Greenland. Neues Jahrbuch fur Mineralogie, Monatshehefte, 2001 (8), 337-351. [MinRec 33:165]
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Igaliku (Igaliko)
          • Narssârssuk (Narsarsuk)
            • Narsaarsuup Qaava
    		[MinRec 33:165]; McDonald, A.M., Petersen, O.V., Gault, R.A., Johnsen, O., Niedrmayr, G., Brandstätter, F. & Giester, G.(2001): Micheelsenite,(Ca,Y)3Al(PO3OH,CO3)(CO3)(OH)6 · 12H2O, a new mineral from Mont Saint-Hilaire, Québec, Canada and the Nanna pegmatite, Narsaarsuup Qaava, South Greenland. Neues Jahrbuch fur Mineralogie, Monatshehefte, 2001 (8), 337-351
    Norway
     
    • Vestfold
      • Larvik
        • Hedrum
          • Lågendalen
    		Berge, S. A. (2011): Micheelsenitt-et nytt mineral for Norge. Stein. 8 (2): 12-13
    Rwanda
     
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
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