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Charmarite (Charmarite-2H)

Pictures (2 Images total)

Charmarit
Views (File:
1421401752
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Charmarit
Bildbreite: 1,3 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Region Montérégie, Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Charmarite
Image: 1421401752
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Charmarit

Bildbreite: 1,3 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Region Montérégie, Québec, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2015-01-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Charmarit
Views (File:
1421401800
): 625
Charmarit
Bildbreite: 1 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Region Montérégie, Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Charmarite
Image: 1421401800
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Charmarit

Bildbreite: 1 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Region Montérégie, Québec, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2015-01-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada

Collectors Summary

Color orangebraun, blassbraun, blassblau, farblos
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2
Cleavages vollkommen {001}
Fracture uneben
Solubility +++ HCl, HNO3, H2SO4 1:1
Crystal System hexagonal, P6322

Additional information / Summary

Es gibt zwei Polytypen von Charmarit

Chemism

Chemical formula

Mn42+Al2[(OH)12|CO3]·3H2O

Chemical composition

Aluminium, Mangan, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 591.858842 u; Number of atoms in the formula: 43

Info

Empirical formula:

Mn4Al2[(OH)12CO3]·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

3.07

18

41.86

1.0079470

18.1430460
Carbon

C

2.03

1

2.33

12.0107800

12.0107800
Oxygen

O

48.66

18

41.86

15.9994300

287.9897400
Aluminium

Al

9.12

2

4.65

26.9815382

53.9630764
Manganese

Mn

37.13

4

9.30

54.9380499

219.7521996

Analysis wt%

FeO : 0.58, MnO : 47.07, Al2O3 : 17.21, CO2 : 7.30, H2O : 26.70 (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

Lapis Classification

V/E.02-008

V: NITRATE, CARBONATE UND BORATE
E: Wasserhaltige Carbonate, mit fremden Anionen
2: Manasseit-Gruppe

Classification by Hölzel

4.FK.400

4: OXIDES
F: Hydroxides and Hydrates (without V and U)
K:

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Hydrotalcite Supergroup  ⇒ Quintinite Group

Optical Properties

Color

orangebraun, blassbraun, blassblau, farblos

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz

max. Birefringence

0.040
Birefringence chart\! Charmarite title=Birefringence chart Charmarite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.547

RI value γ / ε

1.587

Ri mean

1.567

2V angle

Uniaxial (-)

Pleochroism

schwach blau, stark orange-braun

Crystallography

Crystal System

hexagonal

Class (H-M)

622

Space Group number

182

Space Group

P6322

Cell parameters a (Å)

10.985

Cell parameters b (Å)

-

Cell parameters c (Å)

15.10

Cell parameters a/b or c/a

1.375

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

4

Volumne (ų)

1578.003

X-Ray Powder Diffraction

7.53(100),
3.768(60),
2.743(10),
2.578(50),
2.221(40),
1.856(40),
1.585(20),
1.552(40)
XRD chart Charmarite

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

Polytypes

Charmarite-3T

Mn42+Al2[(OH)12|CO3]·3H2O

trigonal

P3112, P3222

32, 32

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2

Density (g/cm³)

2.47 (gemessen) 2.5 (berechnet)

2.491 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {001}

Fracture

uneben

Tenacity

spröde

Instability

+++ HCl, HNO3, H2SO4 1:1

(Co-)Type locality

(Co-)Type locality

Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire

Preface

Name from

Charles H. (1917-) und Marcelle Weber (1918-), Amateur-Mineralogen von Guilford, Connecticut; Co-finder der zweiten Form des Minerals.

Author (Name, Year)

Chao & Gault, 1997

References

Canadian Mineralogist 35 (1997), 1541

IMA group assignments

Other languages

German

Charmarit

Spanish

Charmarita

English

Charmarite

French

Charmarite-2H

Russian

Чармарит

Alternative Name

German

Charmarit-2H

English

Charmarite-2H

CNMNC (IMA)-Number

IMA 1992-026

CNMNC symbol

Symbol

Char

Locations with GPS information