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Laverovite (Laverovit)

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Laverovit
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Laverovit
Desourdy Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada; RRUFF ID: R060216; Brown fragment showing lamellar habit. The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis; Source: Royal Ontario Museum M26526
Copyright: RRUFF - Univ. of Arizona; Contribution: Stefan
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Laverovite
Image: 1570552090
License: Usage for Mineralienatlas project only
Laverovit

Desourdy Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada; RRUFF ID: R060216; Brown fragment showing lamellar habit. The identification of this mineral has been confirmed by X-ray diffra...

Copyright: RRUFF - Univ. of Arizona
Contribution: Stefan 2019-10-08
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 braun
Lustre Glasglanz
Hardness (Mohs) 3
Cleavages vollkommen
Crystal System triklin, P1

Chemism

Chemical formula

K2NaMn7Zr2(Si4O12)2O2(OH)4F

Chemical composition

Mangan, Natrium, Silicium, Zirconium, Fluor, Kalium, Sauerstoff, Wasserstoff

Unit weight: 1395.89847075 u; Number of atoms in the formula: 55

Info

Empirical formula:

K2NaMn7Zr2(Si4O12)2O2(OH)4F

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.29

4

7.27

1.0079470

4.0317880

Oxygen

O

34.39

30

54.55

15.9994300

479.9829000

Fluorine

F

1.36

1

1.82

18.9984033

18.9984033

Sodium

Na

1.65

1

1.82

22.9897702

22.9897702

Silicon

Si

16.10

8

14.55

28.0855300

224.6842400

Potassium

K

5.60

2

3.64

39.0983100

78.1966200

Manganese

Mn

27.55

7

12.73

54.9380499

384.5663493

Zirconium

Zr

13.07

2

3.64

91.2242000

182.4484000

Strunz 9th edition incl. updates

9.DC.05

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
C: Ketten- und Bandsilikate mit verzweigten 2-periodischen Einzelketten, Si2O6 + 2SiO3 -> Si4O12
05:Astrophyllit-Gruppe

IMA status

anerkannt - CNMNC Newsletter 46, November 2018

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Astrophyllite supergroup

Optical Properties

Color

braun

Diaphaneity (Transparency)

dünne Schichten sind durchsichtig

Lustre

Glasglanz

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

5.4329(1)

Cell parameters b (Å)

11.9232(3)

Cell parameters c (Å)

11.7491(3)

Cell parameters a/b or c/a

0.456

Cell parameters c/b

0.985

Cell parameters α

112.905(2)°

Cell parameters β

94.696(1)°

Cell parameters γ

103.178(1)°

Z

1

Volume (ų)

670.144

Crystal structure

Astrophyllit-Supergruppe; Struktur bestimmt

X-Ray Powder Diffraction

10.625(100), 3.542(92), 2.788(97), 2.680(68), 2.589(100), 2.504(44), 1.776(39), 1.589(50)

XRD chart Laverovite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3

Density (g/cm³)

3.367 (berechnet)

3.459 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen

(Co-)Type locality

(Co-)Type locality

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

Type material

Typisches Material wird in den mineralogischen Sammlungen des Royal Ontario Museum, Toronto, deponiert, Ontario, Kanada, Beitrittsnummer M57542 gelagert

Paragenesis of type material

Zirkophyllit, Kupletskit, Astrophyllit, Aegirin, Analcim, Orthoklas und Albit

Preface

Name from

Professor Nikolay Pavlovich Laverov (1930–2016), Mitglied der Russischen Akademie der Wissenschaften, bedeutender Erzgeologe und Fachmann für Uranlagerstätten und für die Lagerung radioaktiver Abfälle

Author (Name, Year)

Elena Sokolova, Maxwell C. Day, Frank C. Hawthorne, Anatoly V. Kasatkin, Robert A. Downs, László Horváth und Elsa Pfenninger-Horváth (2019)

References

Sokolova, E., Day, M.C., Hawthorne, F.C., Kasatkin, A.V., Downs, R.A., Horváth, L. and Pfenninger-Horváth, E. (2018) Laverovite, IMA 2017-009b. CNMNC Newsletter No. 46, December 2018, page xxxx; Mineralogical Magazine, 82, xxxx–xxxx.

Elena Sokolova; Maxwell C. Day; Frank C. Hawthorne; Anatoly V. Kasatkin ; Robert T. Downs, László Horváth, Elsa Pfenninger-Horváth: Laverovite, K2NaMn7Zr2(Si4O12)2O2(OH)4F, a New Astrophyllite-supergroup Mineral from Mont Saint-Hilaire, Quebec, Canada. The Canadian Mineralogist Vol. 57, Nr. 2 (2019) S. 201-213.

IMA group assignments

Other languages

German

Laverovit

English

Laverovite

CNMNC (IMA)-Number

IMA 2017-009b

CNMNC symbol

Symbol

Lvv

Locations with GPS information

IDs

GUSID (Global unique identifier short form) uZiE_impa0ywrajO82iuHw
GUID (Global unique identifier) FE8498B9-A929-4C6B-B0AD-A8CEF368AE1F
Database ID 8619