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Clinoungemachite (Clinoungemachit)

Collectors Summary

Solubility +++ verdünnte HCl
Crystal System monoklin,

Chemism

Chemical formula

K3Na9Fe3+[(OH)3|(SO4)6]·9H2O

Chemical composition

Eisen, Natrium, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 1169.5874288 u; Number of atoms in the formula: 76

Info

Empirical formula:

K3Na9Fe[(OH)3(SO4)6]·9H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.81

21

27.63

1.0079470

21.1668870
Oxygen

O

49.25

36

47.37

15.9994300

575.9794800
Sodium

Na

17.69

9

11.84

22.9897702

206.9079318
Sulfur

S

16.45

6

7.89

32.0655000

192.3930000
Potassium

K

10.03

3

3.95

39.0983100

117.2949300
Iron

Fe

4.77

1

1.32

55.8452000

55.8452000

Analysis wt%

K2O : 12.08, Na2O : 23.85, Fe2O3 : 6.83, SO3 : 41.07, H2O : 16.17 (Ref: berechnet)

Strunz 9th edition incl. updates

7.DG.10

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
G: Mit großen bis mittelgroßen Kationen; mit NO3, CO3, B(OH)4, SiO4 oder IO3
10:Ungemachit-Gruppe

Lapis Classification

VI/D.16-030

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
16: Mittelgroße und sehr große Kationen

Classification by Hölzel

7.DI.200

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
I: Sideronatrite-Group

IMA status

unvollständige Daten, möglicherweise Ungemachit

Optical Properties

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

:1.6327

Cell parameters b (Å)

:1.0

Cell parameters c (Å)

:1.7308

Cell parameters a/b or c/a

1.633

Cell parameters c/b

1.731

Cell parameters α

90°

Cell parameters β

110.67

Cell parameters γ

90°

Crystals 3D

Open larger view

Physical Properties

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Instability

+++ verdünnte HCl

(Co-)Type locality

(Co-)Type locality

Chile/Antofagasta, Region (II. Region)/El Loa, Provinz/Calama/Chuquicamata District/Chuquicamata Mine

Preface

Author (Name, Year)

Peacock & Bandy, 1936

References

Mineralogical Society of America Annual Meeting, Program Abstracts 1936, 2.

American Mineralogist 23 (1938), 314.

Other languages

Spanish

Clinoungemachita

English

Clinoungemachite

French

Clinoungemachite

German

Klinoungemachit

Alternative Name

Clino-ungemachite

German

Clinoungemachit

German

Klino-Ungemachit

CNMNC symbol

Symbol

Cug

Locations with GPS information