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Almandine (Almandin)

Pictures (228 Images total)

Almandin
Views (Image: 1563102492): 3795
Almandin (SNr: SyS-Alma-4-1-1)

Etwa 12 mm großer scharfkantiger Almandin-Deltoidikositetraeder auf rhyolithischer Matrix vom Garnet Hill in Nevada.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2019-07-14
Locality: Garnet Hill / Ely / Robinson District / White Pine Co. / Nevada / USA
Almandin
Views (Image: 1350943647): 14426, Rating: 9.3
Almandin (SNr: EM 3243)

Bildbreite: 1,4 mm; Deutschland/Rheinland-Pfalz/Vulkaneifel-Kreis/Daun/Üdersdorf/Emmelberg

Collection: loparit
Copyright: loparit
Contribution: loparit 2012-10-23
Locality: Emmelberg / Üdersdorf / Daun / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland
Almandin
Views (Image: 1350651061): 6506, Rating: 8.71
Almandin

Kerber-Bruch, Tittling, Bayern, Bildbreite 3mm

Collection: Georg Prock
Copyright: Georg Prock
Contribution: Gepro 2012-10-19
Locality: Kerberbruch / Stützersdorf / Tittling / Passau, Landkreis / Niederbayern, Bezirk / Bayern / Deutschland
Almandin
Views (Image: 1283763844): 12685
Almandin

Größe: 4,87 mm; Fundort: Coderatal, Novate Mezzola, Sondrio, Provinz, Lombardei (Lombardia), Region, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2010-09-06
Locality: Coderatal / Novate Mezzola / Sondrio, Provinz / Lombardei (Lombardia), Region / Italien
Almandine
Views (Image: 1576132640): 510
Almandine

Almandine crystal on rhyolite matrix, from Garnet Hill, Ely, Robinson District, White Pine Co., Nevada, USA; Dimensions: 57 mm x 52 mm x 36 mm

Copyright: pegmatite
Contribution: pegmatite 2019-12-12
Locality: Garnet Hill / Ely / Robinson District / White Pine Co. / Nevada / USA
Almandin
Views (Image: 1408958530): 3823
Almandin

Größe: 0,93 mm; Fundort: Grube Clara, Wolfach, Schwarzwald, Baden-Württemberg, Deutschland

Copyright: Matteo Chinellato
Contribution: Hg 2014-08-25
Locality: Grube Clara / Oberwolfach / Ortenaukreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland

Collectors Summary

Color violett, rot, braunrot, (selten) schwarz
Streak color weiß
Hardness (Mohs) 6.5 - 7.5
Solubility +++ HF
Crystal System kubisch, Ia3d

Additional information / Summary

Siehe auch Mineralienportrait: Granat - Almandin

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Eisen, Silicium, Sauerstoff

Unit weight: 497.7484264 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Fe3}[Al2](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

38.57

12

60.00

15.9994300

191.9931600

Aluminium

Al

10.84

2

10.00

26.9815382

53.9630764

Silicon

Si

16.93

3

15.00

28.0855300

84.2565900

Iron

Fe

33.66

3

15.00

55.8452000

167.5356000

Anal­y­sis wt%

SiO2 : 35.96, Al2O3 : 21.79, Fe2O3 : 0.60, FeO : 33.05, MnO : 1.67, MgO : 3.27, CaO : 1.32 (Ref: Journal of Petrology 62)

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.08-020

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

Clas­sifica­tion by Hölzel

9.AC.110

9: SILICATES
A: Nesosilicates
C: Garnet-Group
1: Pyralspites - 8-coord. Mg, Fe(2+), Mn(2+); Pyrope - Spessartine-Group

Dana 8th edi­tion

51.04.03a.02

51: Nesosilicate Minerals
04: Nesosilicates Nesosilicate Insular SiO4 Groups Only with cations in [6] and >[6] coordination
03a: Garnet group (Pyralspite series)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

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

Optical Properties

Color

violett, rot, braunrot, (selten) schwarz

Streak color

weiß

RI value α / ω / n

1.830

Ri mean

1.830

2V angle

Isotropisch

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell param­e­ters a (Å)

11.526

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)

1531.214

X-Ray Pow­der Diffrac­tion

2.893(30),
2.586(100),
2.361(20),
2.112(20),
1.876(20),
1.604(30),
1.546(30),
1.445(10)

XRD chart Almandine

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

6.5 - 7.5

VHN (Hard­ness Vick­ers)

1450 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.2

4.318 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HF

Preface

Name from

dem antiken Bearbeitungsort Alabanda in Kleinasien

Author (Name, Year)

Agricola, 1546

References

American Mineralogist 77 (1992), 399.

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

 
neue Definition: {X3}[Y2](Z3)φ12
kubisch
 


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

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

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

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

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

 
 
 
{Ca3}[Al2](Si3)O12
kubisch
Ia3d

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

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

 
 
 
Mg3(MgSi)(SiO4)3
kubisch
 

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

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

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

 
 
 
{Mg3}[Al2](Si3)O12
kubisch
Ia3d

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

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

Refresh list

Actuality: 12. Oct 2021 - 16:03:16

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Pyrope

{Mg3}[Al2](Si3)O12

kubisch : m3m : Ia3d

9.AD.25

'Garnet supergroup'

neue Definition: {X3}[Y2](Z3)φ12

kubisch : kubisch-hexakisoktaedrisch

9.AD.25

Katoite

{Ca3}[Al2](☐3)(OH)12

kubisch : m3m : Ia3d

9.AD.25

Majorite

Mg3(MgSi)(SiO4)3

9.AD.25

'Melanite' (Var.v. Andradite)

9.AD.25

Rubinite

Ca3Ti3+2Si3O12

kubisch : m3m : Ia3d

9.AD.25

Wadalite

Ca6Al5Si2O16Cl3

kubisch : 43m : I43d

9.AD.25

Almandine

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

kubisch : m3m : Ia3d

9.AD.25

Andradite

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

kubisch : m3m : Ia3d

9.AD.25

Calderite

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

kubisch : m3m : Ia3d

9.AD.25

'Hessonite' (Var.v. Grossular)

Ca3Al2(SiO4)3

9.AD.25

'Hibschite' (Var.v. Grossular)

Ca3Al2(SiO4)3-x(OH)4*x {x<0.2-1.5}

kubisch : m3m : Ia3d

9.AD.25

Kimzeyite

{Ca3}[Zr2](SiAl2)O12

kubisch : m3m : Ia3d

9.AD.25

Uvarovite

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

kubisch : m3m : Ia3d

9.AD.25

Goldmanite

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

kubisch : m3m : Ia3d

9.AD.25

Grossular

{Ca3}[Al2](Si3)O12

kubisch : m3m : Ia3d

9.AD.25

Holtstamite

{Ca3}[Al2](Si2)(☐)O8(OH)4

tetragonal : 4/mmm : I41/acd

9.AD.25

Hutcheonite

{Ca3}[Ti2](SiAl2)O12

kubisch : m3m : Ia3d

9.AD.25

Knorringite

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

kubisch : m3m : Ia3d

9.AD.25

Morimotoite

{Ca3}[TiFe2+](Si3)O12

kubisch : m3m : Ia3d

9.AD.25

Schorlomite

{Ca3}[Ti2](SiFe3+2)O12

kubisch : m3m : Ia3d

9.AD.25

Spessartine

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

kubisch : m3m : Ia3d

9.AD.25

Momoiite

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

kubisch : m3m : Ia3d

9.AD.25

Kerimasite

{Ca3}[Zr2](SiFe3+2)O12

kubisch : m3m : Ia3d

9.AD.25

Toturite

{Ca3}[Sn4+2](SiFe3+2)O12

kubisch : m3m : Ia3d

9.AD.25

Menzerite-(Y)

{Y2Ca}[Mg2](Si3)O12

kubisch : m3m : Ia3d

9.AD.25

Elbrusite

{Ca3}[U6+0.5Zr1.5](Fe3+3)O12

kubisch : m3m : Ia3d

9.AD.25

Bitikleite

{Ca3}[Sb5+Sn4+](Al3)O12

kubisch : m3m : Ia3d

9.AD.25

Usturite

{Ca3}[Sb5+Zr](Fe3+3)O12

kubisch : m3m : Ia3d

9.AD.25

Eringaite

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

kubisch : m3m : Ia3d

9.AD.25

Dzhuluite

{Ca3}[Sb5+Sn4+](Fe3+3)O12

kubisch : m3m : Ia3d

9.AD.25

Irinarassite

{Ca3}[Sn4+2](SiAl2)O12

kubisch : m3m : Ia3d

9.AD.25

Eltyubyuite

Ca12Fe3+10Si4O32Cl6

kubisch : 43m : I43d

9.AD.25

Adrianite

Ca12(Al4Mg3Si7)O32Cl6

kubisch : 43m : I43d

9.AD.25

Priscillagrewite-(Y)

YCa2Zr2Al3O12

kubisch : m3m : Ia3d

9.AD.25

'Hydroandradite' (Var.v. Andradite)

Ca3Fe3+2(SiO4)3-x(OH)4x

9.AD.25

'Hydrougrandite'

(Ca,Mg,Fe2+)3(Fe3+,Al)2(SiO4)3-x(OH)4x

9.AD.25

Nikmelnikovite

Ca12Fe2+Fe3+3Al3(SiO4)6(OH)20

trigonal : 3 : R3

9.AD.25

Henritermierite

{Ca3}[Mn3+2](Si2)(☐)O8(OH)4

tetragonal : 4/mmm : I41/acd

9.AD.25

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Pyrope

{Mg3}[Al2](Si3)O12

kubisch : m3m : Ia3d

VIII/A.08-010

Almandine

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

kubisch : m3m : Ia3d

VIII/A.08-020

Spessartine

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

kubisch : m3m : Ia3d

VIII/A.08-030

Calderite

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

kubisch : m3m : Ia3d

VIII/A.08-040

Knorringite

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

kubisch : m3m : Ia3d

VIII/A.08-050

Majorite

Mg3(MgSi)(SiO4)3

VIII/A.08-060

Menzerite-(Y)

{Y2Ca}[Mg2](Si3)O12

kubisch : m3m : Ia3d

VIII/A.08-065

Grossular

{Ca3}[Al2](Si3)O12

kubisch : m3m : Ia3d

VIII/A.08-070

'Hibschite' (Var.v. Grossular)

Ca3Al2(SiO4)3-x(OH)4*x {x<0.2-1.5}

kubisch : m3m : Ia3d

VIII/A.08-080

Katoite

{Ca3}[Al2](☐3)(OH)12

kubisch : m3m : Ia3d

VIII/A.08-090

'Hydrougrandite'

(Ca,Mg,Fe2+)3(Fe3+,Al)2(SiO4)3-x(OH)4x

VIII/A.08-100

Andradite

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

kubisch : m3m : Ia3d

VIII/A.08-110

Schorlomite

{Ca3}[Ti2](SiFe3+2)O12

kubisch : m3m : Ia3d

VIII/A.08-120

Morimotoite

{Ca3}[TiFe2+](Si3)O12

kubisch : m3m : Ia3d

VIII/A.08-125

Uvarovite

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

kubisch : m3m : Ia3d

VIII/A.08-130

Momoiite

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

kubisch : m3m : Ia3d

VIII/A.08-138

Goldmanite

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

kubisch : m3m : Ia3d

VIII/A.08-140

Eringaite

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

kubisch : m3m : Ia3d

VIII/A.08-145

Kimzeyite

{Ca3}[Zr2](SiAl2)O12

kubisch : m3m : Ia3d

VIII/A.08-150

Bitikleite

{Ca3}[Sb5+Sn4+](Al3)O12

kubisch : m3m : Ia3d

VIII/A.08-160

Dzhuluite

{Ca3}[Sb5+Sn4+](Fe3+3)O12

kubisch : m3m : Ia3d

VIII/A.08-165

Usturite

{Ca3}[Sb5+Zr](Fe3+3)O12

kubisch : m3m : Ia3d

VIII/A.08-170

Irinarassite

{Ca3}[Sn4+2](SiAl2)O12

kubisch : m3m : Ia3d

VIII/A.08-175

Toturite

{Ca3}[Sn4+2](SiFe3+2)O12

kubisch : m3m : Ia3d

VIII/A.08-180

Kerimasite

{Ca3}[Zr2](SiFe3+2)O12

kubisch : m3m : Ia3d

VIII/A.08-185

Elbrusite

{Ca3}[U6+0.5Zr1.5](Fe3+3)O12

kubisch : m3m : Ia3d

VIII/A.08-190

Wadalite

Ca6Al5Si2O16Cl3

kubisch : 43m : I43d

VIII/A.08-200

Eltyubyuite

Ca12Fe3+10Si4O32Cl6

kubisch : 43m : I43d

VIII/A.08-205

Holtstamite

{Ca3}[Al2](Si2)(☐)O8(OH)4

tetragonal : 4/mmm : I41/acd

VIII/A.08-210

Henritermierite

{Ca3}[Mn3+2](Si2)(☐)O8(OH)4

tetragonal : 4/mmm : I41/acd

VIII/A.08-220

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Pyrope

{Mg3}[Al2](Si3)O12

kubisch : m3m : Ia3d

9.AC.100

Almandine

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

kubisch : m3m : Ia3d

9.AC.110

Spessartine

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

kubisch : m3m : Ia3d

9.AC.120

Majorite

Mg3(MgSi)(SiO4)3

9.AC.140

Calderite

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

kubisch : m3m : Ia3d

9.AC.150

Knorringite

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

kubisch : m3m : Ia3d

9.AC.160

Momoiite

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

kubisch : m3m : Ia3d

9.AC.170

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Bredigite

Ca7Mg(SiO4)4

orthorhombisch : mmm : Pnnm

51.04.01.01

Merwinite

Ca3Mg(SiO4)2

monoklin : 2/m : P21/a

51.04.02.01

Pyrope

{Mg3}[Al2](Si3)O12

kubisch : m3m : Ia3d

51.04.03a.01

Almandine

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

kubisch : m3m : Ia3d

51.04.03a.02

Spessartine

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

kubisch : m3m : Ia3d

51.04.03a.03

Knorringite

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

kubisch : m3m : Ia3d

51.04.03a.04

Majorite

Mg3(MgSi)(SiO4)3

51.04.03a.05

Calderite

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

kubisch : m3m : Ia3d

51.04.03a.06

Andradite

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

kubisch : m3m : Ia3d

51.04.03b.01

Grossular

{Ca3}[Al2](Si3)O12

kubisch : m3m : Ia3d

51.04.03b.02

Uvarovite

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

kubisch : m3m : Ia3d

51.04.03b.03

Goldmanite

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

kubisch : m3m : Ia3d

51.04.03b.04

Schorlomite

{Ca3}[Ti2](SiFe3+2)O12

kubisch : m3m : Ia3d

51.04.03c.01

Kimzeyite

{Ca3}[Zr2](SiAl2)O12

kubisch : m3m : Ia3d

51.04.03c.02

Morimotoite

{Ca3}[TiFe2+](Si3)O12

kubisch : m3m : Ia3d

51.04.03c.03

'Hibschite' (Var.v. Grossular)

Ca3Al2(SiO4)3-x(OH)4*x {x<0.2-1.5}

kubisch : m3m : Ia3d

51.04.03d.01

Katoite

{Ca3}[Al2](☐3)(OH)12

kubisch : m3m : Ia3d

51.04.03d.02

Henritermierite

{Ca3}[Mn3+2](Si2)(☐)O8(OH)4

tetragonal : 4/mmm : I41/acd

51.04.04.01

Wadalite

Ca6Al5Si2O16Cl3

kubisch : 43m : I43d

51.04.05.01

Rondorfite

Ca8Mg[Cl2|(SiO4)4]

kubisch : m3 : Fd3

51.04.06.01

Alternative Name

Adelaide ruby

Adelaide-Rubin

Latin

Alabandicus (of Pliny)

Alabandine Ruby

Alamandine

Almandine Garnet

Almandit

Almandita

Almandite

English

Carbuncle

Latin

Carbunculus

Felsenrubin

German

Karfunkel

Oriental Garnet

Traditional Chinese

貴榴石

Simplified Chinese

贵榴石

CNMNC symbol

Symbol

Alm

Rock part of

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Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 12. Oct 2021 - 16:03:16

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Almandin
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English pages

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RRUFF - References and PDF downloads - search for: Almandine
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Russian pages

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