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Menzerite-(Y)

Collectors Summary

Color rötlich braun
Cleavages nicht erwiesen
Crystal System kubisch, Ia3d
Morphology Kernzonen bis 70 µm Durchmesser, in Almandin

Chemism

Chem­ical formula

{Y2Ca}[Mg2](Si3)O12

Addi­tional chem. informa­tion

Endglied ist:(Y2Ca)(Mg2)Si3O12; Granat-Gruppe

Chem­ical com­po­si­tion

Calcium, Magnesium, Silicium, Yttrium, Sauerstoff

Unit weight: 542.749974 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Y2Ca}[Mg2](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

35.37

12

60.00

15.9994300

191.9931600
Magnesium

Mg

8.96

2

10.00

24.3050600

48.6101200
Silicon

Si

15.52

3

15.00

28.0855300

84.2565900
Calcium

Ca

7.38

1

5.00

40.0784000

40.0784000
Yttrium

Y

32.76

2

10.00

88.9058520

177.8117040

Anal­y­sis wt%

SiO2 : 30.38, TiO2 : 1.38, Al2O3 : 4.46, Fe2O3 : 10.77, FeO : 9.97, MgO : 3.85, MnO : 0.96, Y2O3 : 14.42, Dy2O3 : 0.91, Ho2O3 : 0.46, Er2O3 : 2.25, Tm2O3 : 0.43, Yb2O3 : 2.62, Lu2O3 : 0.83, CaO : 15.42, Ln2O3 : 22.57 (Ref: Canadian Mineralogist 2010)

Strunz 9th edi­tion incl. updates

9.AD.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
D: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] und gewöhnlich größerer Koordination
25:Granat-Gruppe

Lapis Clas­sifica­tion

VIII/A.08-065

VIII: SILIKATE
A: Inselsilikate mit [SiO4] 4--Baugruppen
8: Kationen in kubischer und oktaedrischer Koordination [8+6]; Granat-Gruppe

Clas­sifica­tion by Hölzel

9.AC.600

9: SILICATES
A: Nesosilicates
C: Garnet-Group
6: Garnets with Rare Earth Elements

IMA sta­tus

anerkannt, Neue Mineralien - IMA Web-Seite, Okt. 2009

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Garnet supergroup  ⇒ Silicate garnets; Garnet group (Z charge 12)

Optical Properties

Color

rötlich braun

max. Birefrin­gence

0.000

RI value α / ω / n

1.844

RI value β

al.

Ri mean

1.844

2V angle

Isotropisch

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell param­e­ters a (Å)

11.995

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

1725.841

Kristall struc­ture

Struktur bestimmt, siehe Edward S. Grew et al., 2010

X-Ray Pow­der Diffrac­tion

2.999(36), 2.682(100), 2.448(33), 2.190(17), 1.663(17), 1.603(44), 1.309(18)
XRD chart Menzerite-(Y)

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

Morphol­ogy

Kernzonen bis 70 µm Durchmesser, in Almandin

Physical Properties

Density (g/cm³)

4.177 ( ρ calc. Mineralienatlas )

Cleav­ages

nicht erwiesen

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

Kanada/Ontario/Parry Sound District/Georgian Bay/Bonnet Island

Preface

Name from

Georg Menzer (1897–1989), Kristallograph, der die Kristallstruktur von Granat aufklärte.

Author (Name, Year)

Edward S. Grew et al., 2010

References

Edward S. Grew, Jeffrey H. Marsh, Martin G. Yates, Biljana Lazic, Thomas Armbruster, Andrew Locock, Samuel W. Bell, M. Darby Dyar, Heinz-Jürgen Bernhardt, Olaf Medenbach: Menzerite-(y), a new species, {(Y,REE)(Ca,Fe2+)2}[(Mg,Fe2+)(Fe3+,Al)](Si3)O12, from a felsic granulite, Parry Sound, Ontario, and a new garnet end-member, {Y2Ca}[Mg2](Si3)O12. Can. Mineral. 48 (2010) S.1171-1193.

Neue Mineralien - IMA Web-Seite, Okt. 2009.

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel]

IMA group assignments

 
Garnet supergroup
{X3}[Y2](Z3)φ12
 
 

 
 
Silicate garnets; Garnet group (Z charge 12)
 
 
 

 
 
 
Almandine
{Fe2+3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Andradite
{Ca3}[Fe3+2](Si3)O12
kubisch
Ia3d

 
 
 
Calderite
{Mn2+3}[Fe3+2](Si3)O12
kubisch
Ia3d

 
 
 
Eringaite
{Ca3}[Sc2](Si3)O12
kubisch
Ia3d

 
 
 
Goldmanite
{Ca3}[V3+2](Si3)O12
kubisch
Ia3d

 
 
 
Grossular
{Ca3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Hutcheonite
{Ca3}[Ti2](SiAl2)O12
kubisch
Ia3d

 
 
 
Knorringite
{Mg3}[Cr3+2](Si3)O12
kubisch
Ia3d

 
 
 
Majorite
{Mg3}[MgSi](Si3)O12
kubisch
 

 
 
 
Menzerite-(Y)
{Y2Ca}[Mg2](Si3)O12
kubisch
Ia3d

 
 
 
Momoiite
{Mn2+3}[V3+2](Si3)O12
kubisch
Ia3d

 
 
 
Morimotoite
{Ca3}[TiFe2+](Si3)O12
kubisch
Ia3d

 
 
 
Pyrope
{Mg3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Spessartine
{Mn2+3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Uvarovite
{Ca3}[Cr3+2](Si3)O12
kubisch
Ia3d

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Actuality: 20. May 2022 - 06:20:03

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Menzerit-(Y)

Spanish

Menzerita-(Y)

English

Menzerite-(Y)

Russian

Мензерит-(Y)

CNMNC (IMA)-Number

IMA 2009-050

CNMNC symbol

Symbol

Mzr-Y

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