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Quintinite-3T

Pictures (2 Images total)

Quintinit-3T
Views (File:
1402993655
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Quintinit-3T
Bildbreite: 1,5 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Quintinite-3T
Image: 1402993655
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Quintinit-3T

Bildbreite: 1,5 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2014-06-17
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Quintinit-3T
Views (File:
1303422919
): 892
Quintinit-3T
Bildbreite: 2 mm, Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith; Contribution: thdun5
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Quintinite-3T
Image: 1303422919
License: Usage for Mineralienatlas project only
Quintinit-3T

Bildbreite: 2 mm, Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith
Contribution: thdun5 2011-04-21
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada

Collectors Summary

Hardness (Mohs) 2
Solubility +++ H2SO4, HNO3 1:1, + HCl 1:1
Crystal System trigonal, P3112, P3222

Chemism

Chemical formula

Mg4Al2[(OH)12|CO3]·3H2O

Chemical composition

Aluminium, Magnesium, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 469.3268824 u; Number of atoms in the formula: 43

Info

Empirical formula:

Mg4Al2[(OH)12CO3]·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

3.87

18

41.86

1.0079470

18.1430460
Carbon

C

2.56

1

2.33

12.0107800

12.0107800
Oxygen

O

61.36

18

41.86

15.9994300

287.9897400
Magnesium

Mg

20.71

4

9.30

24.3050600

97.2202400
Aluminium

Al

11.50

2

4.65

26.9815382

53.9630764

Analysis wt%

MgO : 34.08, Fe2O3 : 0.80, Al2O3 : 21.14, CO2 : 9.35, H2O : 34.43 (Ref: Canadian Mineralogist 97)

Strunz 9th edition incl. updates

5.DA.40

5: Carbonate (Carbonate, Nitrate)
D: Carbonate mit weitere Anionen, mit H2O
A: Mit mittelgroßen [Kationen]
40:Quintinit-Gruppe

Classification by Hölzel

5.DD.180

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
D: Carbonates (+Anions +Water)
D: Hydrotalcite Series
1: Chlormagaluminite-Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Hydrotalcite Supergroup  ⇒ Quintinite Group

Optical Properties

max. Birefringence

0.000

RI value α / ω / n

1.533

RI value γ / ε

1.533

Ri mean

1.533

Crystallography

Crystal System

trigonal

Class (H-M)

32

Space Group number

151, 153

Space Group

P3112, P3222

Cell parameters a (Å)

10.558

Cell parameters b (Å)

-

Cell parameters c (Å)

22.71

Cell parameters a/b or c/a

2.151

Cell parameters c/b

-

Z

6

Volume (ų)

2192.356

X-Ray Powder Diffraction

7.57(100),
3.778(90),
2.570(40),
2.281(40),
1.932(40),
1.721(10),
1.524(20),
1.493(20)
XRD chart Quintinite-3T

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Hardness (Mohs)

2

Density (g/cm³)

2.14

2.133 ( ρ calc. Mineralienatlas )

Instability

+++ H2SO4, HNO3 1:1, + HCl 1:1

(Co-)Type locality

(Co-)Type locality

Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)

Brasilien/Südosten (Região Sudeste)/Sao Paulo/Cajati/Jacupiranga Alkali-Komplex

Preface

Author (Name, Year)

Chao & Gault, 1997

References

Canadian Mineralogist 35 (1997), 1541

IMA group assignments

Other languages

German

Quintinit-3T

Spanish

Quintinita-3T

English

Quintinite-3T

CNMNC (IMA)-Number

IMA 1992-029

Locations with GPS information

IDs

GUSID (Global unique identifier short form) uksLnm7DpE-f764up7Ylew
GUID (Global unique identifier) 9E0B4BBA-C36E-4FA4-9FEF-AE2EA7B6257B
Database ID 3191