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Quintinite-3T

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Formula:
Mg
 
4
Al
 
2
(OH)
 
12
CO
 
3
· 4H
 
2
O
Lustre:VitreousHardness:2
Name:Named after Quintin Wight (b. 1935), of Ottawa, Ontario, Canada, significant contributor to mineral studies at Mont Saint-Hilaire, and author of The Complete Book of Micromounting (1993).
A polytype of Quintinite

The 3T polytype was originally described from Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville Co., Québec, Canada.

Classification of Quintinite-3T

Explanation of status:In 1998 The IMA pronounced all polytypes as crystallographic varieties
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Physical Properties of Quintinite-3T

Lustre:Vitreous
Hardness (Mohs):2

Chemical Properties of Quintinite-3T

Formula:
Mg
 
4
Al
 
2
(OH)
 
12
CO
 
3
· 4H
 
2
O
Simplified for copy/paste:Mg4Al2(OH)12CO3·4H2O
Essential elements:Al, C, H, Mg, O
All elements listed in formula:Al, C, H, Mg, O

Other Names for Quintinite-3T

Synonyms:
IMA1992-029
Other Languages:

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 Quintinite-3T

Reference List:

- +
Canadian Mineralogist 35, 1541-1549(1997)

Internet Links for Quintinite-3T

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  • Localities for Quintinite-3T

    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
        • La Vallée-du-Richelieu RCM
          • Mont Saint-Hilaire
    Chao, G.Y., Gault, R.A. (1997), Quintinite-2H, quintinite-3T, charmarite-2H, charmarite-3T, and caresite-3T, a new group of carbonate minerals related to the hydrotalcite-manasseite group. Canadian Mineralogist: 35: 1541-1549; American Mineralogist: 83: 1347.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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