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Aphthitalite (Aphthitalit)

Pictures (3 Images total)

Aphthitalit
Views (File:
1244670486
): 2831
Aphthitalit
Größe: 61x50x30 mm; Fundort: Salzdom Ghom, Qom, Iran
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Iran/Qom, Provinz/Ghom
Mineral: Aphthitalite
Image: 1244670486
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Aphthitalit

Größe: 61x50x30 mm; Fundort: Salzdom Ghom, Qom, Iran

Copyright: Rob Lavinsky
Contribution: slugslayer 2009-06-10
Locality: Ghom / Qom, Provinz / Iran
Pansnerit mit Aphtitalit
Views (File:
1580155513
): 670
Pansnerit mit Aphtitalit
gelber Pansnerit neben hellgelben Aphtitalit und orangem Cassiterit, Arsenatnaya Fumarole, zweiter Schlackenkegel der Großen Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Ferner Osten, Föderationskreis/Kamtschatka Oblast/Tolbachik-Vulkan/Große Spalteneruption (Great Fissure)/nördlicher Bruch/zweiter Schlackenkegel/Arsenatnaya Fumarole
Mineral: Aphthitalite, Pansnerite
Image: 1580155513
License: Usage for Mineralienatlas project only
Pansnerit mit Aphtitalit

gelber Pansnerit neben hellgelben Aphtitalit und orangem Cassiterit, Arsenatnaya Fumarole, zweiter Schlackenkegel der Großen Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-01-27
Locality: Arsenatnaya Fumarole / zweiter Schlackenkegel / nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland
Aphthitalit
Views (File:
1286899841
): 1919
Aphthitalit
Bildbreite: 2 mm, Fundort: Searles Lake, San Bernardino Co., Kalifornien, USA
Copyright: Luigi Chiappino; Contribution: thdun5
Location: USA/Kalifornien (California)/San Bernardino Co./Searles Lake
Mineral: Aphthitalite
Image: 1286899841
Rating: 2 (votes: 1)
License: Usage for Mineralienatlas project only
Aphthitalit

Bildbreite: 2 mm, Fundort: Searles Lake, San Bernardino Co., Kalifornien, USA

Copyright: Luigi Chiappino
Contribution: thdun5 2010-10-12
Locality: Searles Lake / San Bernardino Co. / Kalifornien (California) / USA

Collectors Summary

Color weiß
Streak color weiß
Hardness (Mohs) 3
Solubility +++ H2O, Säuren
Crystal System trigonal, P3m1

Chemism

Chemical formula

(K,Na)3Na(SO4)2

Chemical composition

Natrium, Kalium, Sauerstoff, Schwefel

Unit weight: 320.32973535 u; Number of atoms in the formula: 14

Info

Empirical formula:

(K0.75Na0.25)3Na(SO4)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

39.96

8

57.14

15.9994300

127.9954400

Sodium

Na

12.56

1.75

12.50

22.9897702

40.2320979

Sulfur

S

20.02

2

14.29

32.0655000

64.1310000

Potassium

K

27.46

2.25

16.07

39.0983100

87.9711975

Analysis wt%

K2O : 42.51, Na2O : 9.32, SO3 : 48.17 (Ref: berechnet)

Strunz 9th edition incl. updates

7.AC.35

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
A: Sulfate (Selenate, etc.) ohne weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen Kationen
35:Aphthitalit-Gruppe

Lapis Classification

VI/A.08-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
A: Wasserfreie Sulfate [SO4] 2-, ohne fremde Anionen
8: Sehr große Kationen

Classification by Hölzel

7.AC.300

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
A: Sulfates (-Anions -Water)
C: Sulfates, C large

Dana 8th edition

28.02.02.01

28: Sulfate Minerals
02: Anhydrous Acid and Sulfates (A+)2 XO4

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefringence

0.005

Birefringence chart\! Aphthitalite title=Birefringence chart Aphthitalite

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

1.494

RI value γ / ε

1.499

Ri mean

1.496

2V angle

Uniaxial (+)

Optical Data Luminescence

Color LW-UV (365nm)

 

gelblich weiß

Color SW-UV (254nm)

 

gelblich weiß

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

164

Space Group

P3m1

Cell parameters a (Å)

5.65

Cell parameters b (Å)

-

Cell parameters c (Å)

7.29

Cell parameters a/b or c/a

1.290

Cell parameters c/b

-

Z

1

Volumne (ų)

201.537

X-Ray Powder Diffraction

4.09(30),
3.67(20),
2.94(70),
2.839(100),
2.443(20),
2.330(10),
2.042(40),
1.657(10)

XRD chart Aphthitalite

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)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.71 (gemessen)

2.639 ( ρ calc. Mineralienatlas )

Instability

+++ H2O, Säuren

Preface

Author (Name, Year)

Beudant, 1832

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 28

Other languages

Spanish

Afthitalita

German

Aphthitalit

French

Aphthitalite

English

Aphthitalite

Russian

Афтиталит

Alternative Name

Italian

Aftalosa

Italian

Aftalosia

Italian

Aftalosio

German

Aftitalit

Spanish

Aftitalita

Italian

Aftitalite

Spanish

Aphtalita

Aphtalite

German

Aphtalith

French

Aphthalose

Spanish

Aphthitalita

German

Aphthitalith

German

Aphtitalith

Spanish

Glaserita

Latin

Sal polychrestum Glaseri

German

Schwefelkalisalz

Italian

Solfato potassico

Vesuvian Salt

CNMNC symbol

Symbol

Att

Locations with GPS information