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Armenite (Armenit)

Pictures (8 Images total)

Armenit
Views (File:
1320148229
): 1570
Armenit
Größe: 4,5 mm; Fundort: Isenwegg, Wasenalp, Simplon, Wallis, Schweiz
Copyright: Enrico Bonacina; Contribution: Hg
Location: Schweiz/Wallis, Kanton/Brig, Bezirk/Simplonpassgebiet/Gantertal/Wasenalp/Isenwegg
Mineral: Armenite
Image: 1320148229
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Armenit

Größe: 4,5 mm; Fundort: Isenwegg, Wasenalp, Simplon, Wallis, Schweiz
Copyright: Enrico Bonacina
Contribution: Hg 2011-11-01
Locality: Isenwegg / Wasenalp / Gantertal / Simplonpassgebiet / Brig, Bezirk / Wallis, Kanton / Schweiz
Armenit
Views (File:
1165072615
): 3128
Armenit
Fundort: Wasenalp, Simplon, Wallis, Schweiz
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Schweiz/Wallis, Kanton/Brig, Bezirk/Simplonpassgebiet/Gantertal/Wasenalp
Mineral: Armenite
Image: 1165072615
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Armenit

Fundort: Wasenalp, Simplon, Wallis, Schweiz
Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-02
Locality: Wasenalp / Gantertal / Simplonpassgebiet / Brig, Bezirk / Wallis, Kanton / Schweiz
Armenit
Views (File:
1265361658
): 1908
Armenit
Größe: 2,15 mm; Fundort: Simplonpassgebiet, Brig, Wallis, Schweiz
Copyright: Matteo Chinellato; Contribution: Hg
Location: Schweiz/Wallis, Kanton/Brig, Bezirk/Simplonpassgebiet
Mineral: Armenite
Image: 1265361658
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Armenit

Größe: 2,15 mm; Fundort: Simplonpassgebiet, Brig, Wallis, Schweiz
Copyright: Matteo Chinellato
Contribution: Hg 2010-02-05
Locality: Simplonpassgebiet / Brig, Bezirk / Wallis, Kanton / Schweiz
Armenit
Views (File:
1502634312
): 801
Armenit
pseudohexagonaler Kristall des Minerals der Milarit-Osumilit-Gruppe; Fundort: Wasenalp, Simplon, Wallis, Schweiz; Nikon CFI60 4x/0.10
Copyright: Josef 84,55; Contribution: Josef 84,55
Collection: Josef 84,55
Location: Schweiz/Wallis, Kanton/Brig, Bezirk/Simplonpassgebiet/Gantertal/Wasenalp
Mineral: Armenite
Image: 1502634312
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Armenit

pseudohexagonaler Kristall des Minerals der Milarit-Osumilit-Gruppe; Fundort: Wasenalp, Simplon, Wallis, Schweiz; Nikon CFI60 4x/0.10
Collection: Josef 84,55
Copyright: Josef 84,55
Contribution: Josef 84,55 2017-08-13
Locality: Wasenalp / Gantertal / Simplonpassgebiet / Brig, Bezirk / Wallis, Kanton / Schweiz
Armenit xx
Views (File:
1144491358
): 1787
Armenit xx
Fundort: Wasenalp, Simplon, Wallis, Schweiz; Bildbreite: 4 mm
Copyright: loismin; Contribution: loismin
Location: Schweiz/Wallis, Kanton/Brig, Bezirk/Simplonpassgebiet/Gantertal/Wasenalp
Mineral: Armenite
Image: 1144491358
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Armenit xx

Fundort: Wasenalp, Simplon, Wallis, Schweiz; Bildbreite: 4 mm
Copyright: loismin
Contribution: loismin 2006-04-08
Locality: Wasenalp / Gantertal / Simplonpassgebiet / Brig, Bezirk / Wallis, Kanton / Schweiz
Armenit
Views (File:
1272384969
): 1046
Armenit
Kristallgröße: 4 mm, Fundort: Bergwerk Su Zurfuru (Miniera di Su Zurfuru), Fluminimaggiore, Carbonia-Iglesias, Sardinien (Sardegna), Italien
Copyright: Antonio Gamboni; Contribution: thdun5
Location: Italien/Sardinien (Sardegna), Region/Sud Sardegna, Provinz/Fluminimaggiore/Bergwerk Su Zurfuru (Miniera di Su Zurfuru)
Mineral: Armenite
Image: 1272384969
License: Usage for Mineralienatlas project only
Armenit

Kristallgröße: 4 mm, Fundort: Bergwerk Su Zurfuru (Miniera di Su Zurfuru), Fluminimaggiore, Carbonia-Iglesias, Sardinien (Sardegna), Italien
Copyright: Antonio Gamboni
Contribution: thdun5 2010-04-27
Locality: Bergwerk Su Zurfuru (Miniera di Su Zurfuru) / Fluminimaggiore / Sud Sardegna, Provinz / Sardinien (Sardegna), Region / Italien

You find additional Armenit specimen at the Geolitho Museum

Collectors Summary

Color farblos, graugrün, weiß
Streak color weiß
Hardness (Mohs) 7.5
Crystal System orthorhombisch, Pnc2

Chemism

Chemical formula

BaCa2Al6Si9O30·2 H2O

Chemical composition

Aluminium, Barium, Calcium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 1148.1570472 u; Number of atoms in the formula: 54

Info

Empirical formula:

BaCa2Al6Si9O30·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.35

4

7.41

1.0079470

4.0317880
Oxygen

O

44.59

32

59.26

15.9994300

511.9817600
Aluminium

Al

14.10

6

11.11

26.9815382

161.8892292
Silicon

Si

22.02

9

16.67

28.0855300

252.7697700
Calcium

Ca

6.98

2

3.70

40.0784000

80.1568000
Barium

Ba

11.96

1

1.85

137.3277000

137.3277000

Analysis wt%

SiO2 : 47.22, Al2O3 : 26.56, CaO : 9.68, BaO : 12.96, H2O : 3.42 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 89)

Strunz 9th edition incl. updates

9.CM.05

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
M: ~[Si6O18]12- sechser-Doppelringe
05:Milarit-Gruppe

Lapis Classification

VIII/E.22-150

VIII: SILIKATE
E: Ringsilikate
22: Doppelte Sechserringe [Si12O30] 12-; Milarit/Osumilith-Gruppe

Classification by Hölzel

9.CF.850

9: SILICATES
C: Cyclosilicates
F: ~[Si12O30]12--Rings Milarite-Group

Dana 8th edition

63.02.01b.01

63: Cyclosilicates Cyclosilicate Condensed Rings
02: Cyclosilicates Cyclosilicate Condensed Rings 6-membered rings
01b: Milarite - Osumilite group

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Osumilite Group

Optical Properties

Color

farblos, graugrün, weiß

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.011
Birefringence chart\! Armenite title=Birefringence chart Armenite

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

1.551

RI value β

1.559

RI value γ / ε

1.562

Ri mean

1.557

2V angle

Biaxial (-) 60°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

30

Space Group

Pnc2

Cell parameters a (Å)

13.847

Cell parameters b (Å)

18.661

Cell parameters c (Å)

10.697

Cell parameters a/b or c/a

0.742

Cell parameters c/b

0.573

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

2764.093

X-Ray Powder Diffraction

9.29(30),
6.93(100),
4.255(50),
3.871(30),
3.863(70),
3.409(30),
2.915(60),
2.778(50)
XRD chart Armenite

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)

7.5

VHN (Hardness Vickers)

1650 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.76

2.759 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Norwegen/Viken, Provinz/Kongsberg/Kongsberger Silbergruben/Overberget Gruben-Feld/Grube Armen

Preface

Associations

.Turmalin,Chlorit,Quarz

Author (Name, Year)

Neumann, 1939

Collector information

. Endflächen ähnlich wie Milarit

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 40

IMA group assignments

 
Osumilite Group
 
 
 

 
 
Agakhanovite-(Y)
YCaKBe3Si12O30·H2O
hexagonal
P6/mcc

 
 
Almarudite
(K,Na)(Mn2+,Fe2+,Mg)2(Be,Al)3[Si12O30]
hexagonal
P6/mcc

 
 
Aluminosugilite
KNa2Al2Li3Si12O30
hexagonal
P6/mcc

 
 
Armenite
BaCa2Al6Si9O30·2 H2O
orthorhombisch
Pnc2

 
 
Berezanskite
KLi3Ti2[Si12O30]
hexagonal
P6/mcc

 
 
Brannockite
KSn2Li3Si12O30
hexagonal
P6/mcc

 
 
Darapiosite
KNa2Li(Mn,Zn)2ZrSi12O30
hexagonal
P6/mcc

 
 
Dusmatovite
K(K,Na)2(Zn,Li)3(Mn2+,Mn3+,Y,Zr)2[Si12O30]
hexagonal
P6/mcc

 
 
Eifelite
KNa3Mg4Si12O30
hexagonal
P6/mcc

 
 
Friedrichbeckeite
K(☐Na)Mg2(Be2Mg)Si12O30
hexagonal
P6/mcc

 
 
Klöchite
KNaFe2Zn3[Si12O30]
hexagonal
P63/mmc

 
 
Laurentthomasite
Mg2K(Be2Al)Si12O30
hexagonal
P6/mcc

 
 
Merrihueite
(K,Na)2(Fe2+,Mg)5Si12O30
hexagonal
P6/mcc

 
 
Milarite
KCa2(Be2AlSi12)O30·H2O
hexagonal
P6/mcc

 
 
Osumilite
(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30
hexagonal
P6/mcc

 
 
Osumilite-(Mg)
KMg2Al3(Al2Si10)O30
hexagonal
P6/mcc

 
 
Poudretteite
KNa2B3Si12O30
hexagonal
P6/mcc

 
 
Roedderite
KNaMg2(Mg3Si12)O30
hexagonal
P62c

 
 
Shibkovite
K<3(Ca,Mn,Na)2Zn3[Si12O30]
hexagonal
P6/mcc

 
 
Sogdianite
(K,Na)2(Li,Fe3+,Al)3ZrSi12O30
hexagonal
P6/mcc

 
 
Sugilite
KNa2(Fe2+,Mn2+,Al)2Li3Si12O30
hexagonal
P6/mmc

 
 
Trattnerite
(Fe,Mg)2(Mg,Fe)3(Si12O30)
hexagonal
P6/mcc

 
 
Yagiite
NaMg2(AlMg2Si12)O30
hexagonal
P6/mcc

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Actuality: 25. Mar 2023 - 21:30:38

Other languages

German

Armenit

Spanish

Armenita

French

Armenite

English

Armenite

Russian

Арменит

Traditional Chinese

鋇鈣大隅石

Simplified Chinese

钡钙大隅石

Alternative Name

English

Calciocelsian

CNMNC symbol

Symbol

Amn

Locations with GPS information