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Puninite

Collectors Summary

Color smaragdgrün
Solubility in H2O (Wasser) löslich
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

Na2Cu3O(SO4)3

Empir­ical formula (anal­y­sis)

(Na1.76K0.08)Σ1.84 (Cu2.97Zn0.04)Σ3.01 (SO4)3.02O0.92

Chem­ical com­po­si­tion

Kupfer, Natrium, Sauerstoff, Schwefel

Unit weight: 539.769147352 u; Number of atoms in the formula: 20.87

Info

Empirical formula:

(Na1.76K0.08)(Cu2.97Zn0.04)(SO4)3.02O0.92

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

38.53

13

62.29

15.9994300

207.9925900
Sodium

Na

7.50

1.76

8.43

22.9897702

40.4619956
Sulfur

S

17.94

3.02

14.47

32.0655000

96.8378100
Potassium

K

0.58

0.08

0.38

39.0983100

3.1278648
Copper

Cu

34.97

2.97

14.23

63.5463000

188.7325110
Zinc

Zn

0.48

0.04

0.19

65.4094000

2.6163760

Strunz 9th edi­tion incl. updates

7.BC.30

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
B: Sulfate (Selenate, etc.) mit weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen [Kationen]
30:Euchlorin-Gruppe

IMA sta­tus

anerkannt - CNMNC Newsletter No. 26, August 2015, page 942

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Euchlorine group

Optical Properties

Color

smaragdgrün

max. Birefrin­gence

0.072
Birefringence chart\! Puninite title=Birefringence chart Puninite

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

α = 1.562(2)

RI value β

β = 1.591(2)

RI value γ / ε

γ = 1.634(2)

2V angle

Biaxial (+) 80.7° (berechnet)

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

17.388(1)

Cell param­e­ters b (Å)

9.4009(8)

Cell param­e­ters c (Å)

14.404(1)

Cell param­e­ters a/b or c/a

1.85

Cell param­e­ters c/b

1.532

Cell param­e­ters α

90°

Cell param­e­ters β

112.039(2)º

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

2182.471

Kristall struc­ture

Euchlorin-Gruppe; Struktur bestimmt

X-Ray Pow­der Diffrac­tion

8.058(100), 6.675(19), 6.466(28), 4.398(14), 4.247(17), 3.839(34), 2.853(29), 2.724(15)
XRD chart Puninite

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

Physical Properties

Density (g/cm³)

3.285 ( ρ calc. Mineralienatlas )

Insta­bil­ity

in H2O (Wasser) löslich

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Kamtschatka Oblast/Tolbachik-Vulkan/Große Spalteneruption (Great Fissure)/nördlicher Bruch/zweiter Schlackenkegel/Glavnaya Tenoritovaya-Fumarole

Type mate­r­ial

Mineralogical Museum, Department of Mineralogy, St Petersburg State University, St Petersburg, Russland

Col­lec­tion number of type mate­r­ial

19638

Preface

Name from

Benannt nach dem Russischen Kristallograph Yurii Olegovich Punin (1941–2014).

Author (Name, Year)

Oleg I. Siidra, Evgeny V. Nazarchuk, Evgeniya A. Lukina, Anatoly N. Zaitsev, Evgeniya Y. Avdontseva, Lidiya P. Vergasova, Stanislav K. Filatov, Natalia S. Vlasenko, Rick Turner und Gennady A. Karpov (2015)

References

Siidra, O.I., Nazarchuk, E.V., Lukina, E.A., Zaitsev, A.N., Avdontseva, E.Y., Vergasova, L.P., Filatov, S.K., Vlasenko, N.S., Turner, R. and Karpov, G.A. (2015) Puninite, IMA 2015-012. CNMNC Newsletter No. 26, August 2015, page 942; Mineralogical Magazine, 79, 941 - 947.

Oleg I. Siidra, Evgenii V. Nazarchuk, Anatoly N. Zaitsev, Evgeniya A. Lukina, Evgeniya Y. Avdontseva, Lidiya P. Vergasova, Natalia S. Vlasenko, Stanislav K. Filatov, Rick Turner, Gennady A. Karpov - Copper oxosulphates from fumaroles of Tolbachik volcano: puninite, Na2Cu3O(SO4)3 – a new mineral species and structure refinements of kamchatkite and alumoklyuchevskite - European Journal of Mineralogy - December 2016; 28 (5)

Erratum: Copper oxosulphates from fumaroles of Tolbachik volcano: puninite, Na2Cu3O(SO4)3–a new mineral species and structure refinements of kamchatkite and alumoklyuchevskite by Oleg I. Siidra, Evgenii V. Nazarchuk,  Anatoly N. Zaitsev,  Evgeniya A. Lukina,  Evgeniya Y. Avdontseva, Lidiya P. Vergasova, Natalia S. Vlasenko, Stanislav K. Filatov, Rick Turner, Gennady A. Karpov (2017, vol. 29, p. 499–510, DOI: 10.1127/ejm/2017/0029-2619) [Optical Data RI]

IMA group assignments

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

Puninite

Na2Cu3O(SO4)3

monoklin : 2/m : C2/c

7.BC.30

Euchlorine

KNaCu32+(SO4)3O

monoklin : 2/m : C2/c

7.BC.30

Fedotovite

K2Cu2+3(O|(SO4)3)

monoklin : 2/m : C2/c

7.BC.30

Other languages

German

Puninit

English

Puninite

IMA Number

IMA 2015-012

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

German pages

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English pages

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Locations with GPS information