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Micheelsenite

Pictures (2 Images total)

Micheelsenit
Views (File:
1165569711
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Micheelsenit
Fundort: Mont Saint-Hilaire, Quebéc, 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: Micheelsenite
Image: 1165569711
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Micheelsenit

Fundort: Mont Saint-Hilaire, Quebéc, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-08
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Micheelsenit
Views (File:
1303423641
): 577
Micheelsenit
Kristallgröße: 2,3 mm, Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith; Contribution: thdun5
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Micheelsenite
Image: 1303423641
License: Usage for Mineralienatlas project only
Micheelsenit

Kristallgröße: 2,3 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 / Kanada

Collectors Summary

Color farblos, weiß
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 3.50 - 4.00
Cleavages gut {10-10} und {0001}
Fracture splittrig
Solubility +++ verdünnte HCl
Crystal System hexagonal, P63

Chemism

Chemical formula

(Ca,Y)3Al[(OH)6|{PO3(OH),CO3}|CO3]·12H2O

Chemical composition

Aluminium, Calcium, Yttrium, Kohlenstoff, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 718.0630454 u; Number of atoms in the formula: 66

Info

Empirical formula:

(Ca0.75Y0.25)3Al[(OH)6{PO3(OH),CO3}CO3]·12H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

4.35

31

46.97

1.0079470

31.2463570

Carbon

C

3.35

2

3.03

12.0107800

24.0215600

Oxygen

O

62.39

28

42.42

15.9994300

447.9840400

Aluminium

Al

3.76

1

1.52

26.9815382

26.9815382

Phosphorus

P

4.31

1

1.52

30.9737612

30.9737612

Calcium

Ca

12.56

2.25

3.41

40.0784000

90.1764000

Yttrium

Y

9.29

0.75

1.14

88.9058520

66.6793890

Strunz 9th edition incl. updates

8.DO.30

8: Phosphate, Arsenate, Vanadate
D: Phosphate, mit weiteren Anionen, mit H2O
O: Mit CO3, SO4, SiO4
30:Micheelsenit-Gruppe

Lapis Classification

V/C.07-210

V: NITRATE, CARBONATE UND BORATE
C: Wasserfreie Carbonate, mit fremden Anionen
7: Bastnäsit-Gruppe

Classification by Hölzel

7.DK.250

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
K: Ettringite-Group

Dana 8th edition

43.05.22.01

43: Compound Phosphates, etc.
05: Compound Phosphates, etc. (Hydrated Compound Anions With Hydroxyl or Halogen)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Ettringite group

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

durchsichtig bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.029

Birefringence chart\! Micheelsenite title=Birefringence chart Micheelsenite

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

1.532

RI value γ / ε

1.503

Ri mean

1.522

2V angle

Uniaxial (-)

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

hexagonal

Class (H-M)

6

Space Group number

173

Space Group

P63

Cell parameters a (Å)

10.828

Cell parameters b (Å)

-

Cell parameters c (Å)

10.516

Cell parameters a/b or c/a

0.971

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volume (ų)

1067.77

X-Ray Powder Diffraction

9.38(100),
4.82(40),
4.59(70),
3.77(50),
3.36(50),
2.691(40),
2.491(80),
2.143(60)

XRD chart Micheelsenite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.50 - 4.00

VHN (Hardness Vickers)

160 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.15 (gemessen)

2.233 ( ρ calc. Mineralienatlas )

Cleavages

gut {10-10} und {0001}

Fracture

splittrig

Tenacity

spröde

Instability

+++ verdünnte HCl

Preface

Occurrences

in Alkalipegmatiten, Marmorxenolithen, Hornfels

Associations

Mont St.-Hilaire: Aegirin, Albit, Ancylit-(Ce), Catapleiit, Fluorit, Monteregianit-(Y), NAtrolith, Nenadkevichit, Rhodochrosit, Serandit, Titanit, Calcit, Pyrit
Nanna-Pegmatit: Aegirin, Astrophyllit, Analcim, Calcio-Ancylit-(Ce), Catapleiit, Gibbsit, Leucophanit, Nafertisit, Orthoklas, Sodalith

Name from

dem dänischen Mineralogen Prof. H. I. Micheelsen (geb. 1931)

Author (Name, Year)

McDonald & Petersen & Gault & Johnsen & Niedermayr & Brandstatter & Giester

References

Neues Jahrbuch für Mineralogie, Monatshefte (2001), 337

IMA group assignments

Other languages

German

Micheelsenit

Spanish

Micheelsenita

French

Micheelsenite

English

Micheelsenite

Simplified Chinese

羟碳磷铝钙石

Traditional Chinese

羥碳磷鋁鈣石

Alternative Name

Unnamed (MSH UK-32)

CNMNC (IMA)-Number

IMA 1999-033

CNMNC symbol

Symbol

Msn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 4QL9wsbl80WzCfXl14mGmA
GUID (Global unique identifier) C2FD02E1-E5C6-45F3-B309-F5E5D7898698
Database ID 2528