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Dachiardite-Na (Dachiardit-Na)

Pictures (9 Images total)

Dachiardit-Na
Views (File:
1692367004
): 93
Dachiardit-Na
Dachiardit-Na; Duron Tal,Südtirol; BB: 2,5 cm
Copyright: Rockhounder; Contribution: Rockhounder
Collection: Rockhounder
Location: Italien/Trentino-Südtirol (Trentino-Alto Adige)/Trentino (Trient, Trento), Provinz/Fassa-Tal (Val di Fassa)/Duron Tal
Mineral: Dachiardite-Na
Image: 1692367004
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Dachiardit-Na

Dachiardit-Na; Duron Tal,Südtirol; BB: 2,5 cm
Collection: Rockhounder
Copyright: Rockhounder
Contribution: Rockhounder 2023-08-18
Locality: Duron Tal / Fassa-Tal (Val di Fassa) / Trentino (Trient, Trento), Provinz / Trentino-Südtirol (Trentino-Alto Adige) / Italien
Dachiardit-Na xx
Views (File:
1302280963
): 1803
Dachiardit-Na xx
Tanzenbergtunnel 2 Bruck an der Mur Steiermark Österreich. BB=2,3mm.
Copyright: pilzpirat; Contribution: pilzpirat
Collection: pilzpirat
Location: Österreich/Steiermark/Bruck-Mürzzuschlag, Bezirk/Kapfenberg/Tanzenbergtunnel
Mineral: Dachiardite-Na
Image: 1302280963
Rating: 5.67 (votes: 3)
License: Usage for Mineralienatlas project only
Dachiardit-Na xx

Tanzenbergtunnel 2 Bruck an der Mur Steiermark Österreich. BB=2,3mm.
Collection: pilzpirat
Copyright: pilzpirat
Contribution: pilzpirat 2011-04-08
Locality: Tanzenbergtunnel / Kapfenberg / Bruck-Mürzzuschlag, Bezirk / Steiermark / Österreich
Dachiardit-(Na) xx
Views (File:
1348851431
): 1694
Dachiardit-(Na) xx
Seiser Alm Grödnertal Südtirol Italien. BB=25mm.
Copyright: pilzpirat; Contribution: pilzpirat
Collection: pilzpirat
Location: Italien/Trentino-Südtirol (Trentino-Alto Adige)/Südtirol (Bozen), Provinz/Grödner Tal/Seiser Alm (Siusi Alp; Alpe di Suisi)
Mineral: Dachiardite-Na
Image: 1348851431
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Dachiardit-(Na) xx

Seiser Alm Grödnertal Südtirol Italien. BB=25mm.
Collection: pilzpirat
Copyright: pilzpirat
Contribution: pilzpirat 2012-09-28
Locality: Seiser Alm (Siusi Alp; Alpe di Suisi) / Grödner Tal / Südtirol (Bozen), Provinz / Trentino-Südtirol (Trentino-Alto Adige) / Italien
Dachiardit xx (Na)
Views (File:
1308244830
): 1692, Rating: 5
Dachiardit xx (Na)
Basaltbruch Zeilberg Maroldsweisach Unterfranken Bayern Deutschland. BB=2,3mm.
Copyright: pilzpirat; Contribution: pilzpirat
Collection: pilzpirat
Location: Deutschland/Bayern/Unterfranken, Bezirk/Haßberge, Landkreis/Maroldsweisach/Zeilberg, Steinbruch
Mineral: Dachiardite-Na
Image: 1308244830
Rating: 5 (votes: 4)
License: Usage for Mineralienatlas project only
Dachiardit xx (Na)

Basaltbruch Zeilberg Maroldsweisach Unterfranken Bayern Deutschland. BB=2,3mm.
Collection: pilzpirat
Copyright: pilzpirat
Contribution: pilzpirat 2011-06-16
Locality: Zeilberg, Steinbruch / Maroldsweisach / Haßberge, Landkreis / Unterfranken, Bezirk / Bayern / Deutschland
Dachiardit-Na xx
Views (File:
1301681388
): 1183
Dachiardit-Na xx
Tanzenbergtunnel 2 Bruck a.der Mur Steiermark Österreich.BB=2,3mm.
Copyright: pilzpirat; Contribution: pilzpirat
Collection: pilzpirat
Location: Österreich/Steiermark/Bruck-Mürzzuschlag, Bezirk/Kapfenberg/Tanzenbergtunnel
Mineral: Dachiardite-Na
Image: 1301681388
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Dachiardit-Na xx

Tanzenbergtunnel 2 Bruck a.der Mur Steiermark Österreich.BB=2,3mm.
Collection: pilzpirat
Copyright: pilzpirat
Contribution: pilzpirat 2011-04-01
Locality: Tanzenbergtunnel / Kapfenberg / Bruck-Mürzzuschlag, Bezirk / Steiermark / Österreich

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, weiß, rötlich orange
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 4 - 4.5
Solubility +++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

Na4(Si20,Al4)O48·13H2O

Chemical composition

Aluminium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 1542.395421 u; Number of atoms in the formula: 107

Info

Empirical formula:

Na4((Si20)0.75(Al4)0.25)O48·13H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.70

26

24.30

1.0079470

26.2066220
Oxygen

O

63.28

61

57.01

15.9994300

975.9652300
Sodium

Na

5.96

4

3.74

22.9897702

91.9590808
Aluminium

Al

1.75

1

0.93

26.9815382

26.9815382
Silicon

Si

27.31

15

14.02

28.0855300

421.2829500

Analysis wt%

SiO2 : 65.72, Al2O3 : 12.15, Fe2O3 : 0.50, CaO : 1.65, Na2O : 4.47, K2O : 1.87, H2O : 13.50 (Ref: Contributions to Mineralogy and Petrology 75)

Strunz 9th edition incl. updates

9.GD.40

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
D: Ketten von fünfer-Ringen
40:Dachiardit-Gruppe

Lapis Classification

VIII/J.22-015

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
22: Zeolith-Gruppe; Faserzeolithe

Classification by Hölzel

9.FM.302

9: SILICATES
F: Tektosilicates
M: Mordenite-Group

Dana 8th edition

77.01.06.05

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
06: Mordenite and related species

IMA status

anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ DAC zeolite structure group  ⇒ Dachiardite series

Optical Properties

Color

farblos, weiß, rötlich orange

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.005
Birefringence chart\! Dachiardite-Na title=Birefringence chart Dachiardite-Na

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

1.471

RI value β

1.475

RI value γ / ε

1.476

Ri mean

1.474

2V angle

Biaxial (-) 78°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

18.647

Cell parameters b (Å)

7.506

Cell parameters c (Å)

10.296

Cell parameters a/b or c/a

2.484

Cell parameters c/b

1.372

Cell parameters α

90°

Cell parameters β

108.37

Cell parameters γ

90°

Z

1

Volume (ų)

1367.638

X-Ray Powder Diffraction

9.72(20),
8.84(100),
4.883(100),
3.957(30),
3.801(40),
3.454(80),
2.971(40),
2.865(20)
XRD chart Dachiardite-Na

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4 - 4.5

VHN (Hardness Vickers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.16 (gemessen) 2.141 (berechnet)

1.873 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Italien/Trentino-Südtirol (Trentino-Alto Adige)/Trentino (Trient, Trento), Provinz/Fassa-Tal (Val di Fassa)/Duron Tal/La Pallacia

Italien/Trentino-Südtirol (Trentino-Alto Adige)/Südtirol (Bozen), Provinz/Grödner Tal/Seiser Alm (Siusi Alp; Alpe di Suisi)

Preface

Name from

Antonio D'Achiardi (1839–1902), Professor der Mineralogie, Universitá di Pisa, Italien

Author (Name, Year)

Alberti, 1975

References

Zeitschrift für Kristallographie: 166: 63-71.

Contributions to Mineralogy and Petrology 49 (1975), 63.

Yoshimura, T. & Wakabayashi, S., Na-dachiardite and associated high-silica zeolites from Tsugawa, northeast Japan. Science Reports of Niigata University, Ser. E, Geology and Mineralogy, 4 (1977), 49-65.

American Mineralogist 64 (1979), 244.

Mineralogical Magazine 62 (1998), 533.

IMA group assignments

Other languages

German

Dachiardit-Na

Spanish

Dachiardita-Na

English

Dachiardite-Na

French

Dachiardite-Na

Russian

Дакиардит-Na

Alternative Name

German

Na Dachiardit

Na Dachiardite

German

Natriumdachiardit

Sodium Dachiardite

Spanish

Sodiumdadhiardita

Sodiumdadhiardite

German

Svetlozarit

Spanish

Svetlozarita

CNMNC symbol

Symbol

Dac-Na

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 59F9OGNTmEq4PD-89YR2LQ
GUID (Global unique identifier) 387DD1E7-5363-4A98-B83C-3FBCF584762D
Database ID 874