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Caminite (Caminit)

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Caminit
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Caminit

weiße Massen von Caminit, Nepskoe Lagersätte, Nepa, Niedere Tunguska, Irkutsk, Russland; BB 3 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-16
Locality: Nepskoe / Nepa Bassin / Niedere Tunguska / Irkutsk (Irkutskaja), Oblast / Sibirien, Föderationskreis / Russland

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 2.5
Solubility +++ Säuren
Crystal System tetragonal, I41/amd

Chemism

Chem­ical formula

Mg1.4(SO4)(OH)0.8·0.2H2O

Chem­ical com­po­si­tion

Magnesium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 147.2992704 u; Number of atoms in the formula: 8.6

Info

Empirical formula:

Mg1.4(SO4)(OH)0.8·0.2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.82

1.2

13.95

1.0079470

1.2095364

Oxygen

O

54.31

5

58.14

15.9994300

79.9971500

Magnesium

Mg

23.10

1.4

16.28

24.3050600

34.0270840

Sulfur

S

21.77

1

11.63

32.0655000

32.0655000

Strunz 9th edi­tion incl. updates

7.BB.05

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
B: Sulfate (Selenate, etc.) mit weitere Anionen, ohne H2O
B: Mit mittelgroßen Kationen
05:Caminit-Gruppe

Lapis Clas­sifica­tion

VI/D.02-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
2: Mittelgroße Kationen

Clas­sifica­tion by Hölzel

7.DB.100

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
B: Langite-Group

Dana 8th edi­tion

31.10.09.01

31: Hydrated Sulfates Containing Hydroxyl or Halogen
10: Hydrated Sulfates Containing Hydroxyl or Halogen miscellaneous

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefrin­gence

0.002

Birefringence chart\! Caminite title=Birefringence chart Caminite

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

1.534

RI value γ / ε

1.532

Ri mean

1.533

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/mmm

Space Group number

141

Space Group

I41/amd

Cell param­e­ters a (Å)

5.239

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

12.988

Cell param­e­ters a/b or c/a

2.479

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

356.483

X-Ray Pow­der Diffrac­tion

3.345(100),
3.220(80),
2.062(20),
2.041(20),
1.871(50),
1.854(20),
1.671(20),
1.620(20)

XRD chart Caminite

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)

2.5

VHN (Hard­ness Vick­ers)

10

Density (g/cm³)

2.69 (gemessen)

2.744 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren

Preface

Name from

Caminus, dem lateinischen Wort für Kamin, da das Mineral erstmals in der Tiefsee an den Kaminen der Black smokers entdeckt wurde.

Author (Name, Year)

Haymon & Kastner, 1983

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 108

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

Caminite

Mg1.4(SO4)(OH)0.8·0.2H2O

tetragonal : 4/mmm : I41/amd

7.BB.05

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

Caminite

Mg1.4(SO4)(OH)0.8·0.2H2O

tetragonal : 4/mmm : I41/amd

VI/D.02-010

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

Caminite

Mg1.4(SO4)(OH)0.8·0.2H2O

tetragonal : 4/mmm : I41/amd

7.DB.100

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Ettringite

Ca6Al2(SO4)3(OH)12·26H2O

trigonal : 3m : P31c

31.10.02.01

Bentorite

Ca6(Cr,Al)2(SO4)3(OH)12·26 H2O

31.10.02.02

Buryatite

Ca3(Si,Fe3+,Al)(SO4)B(OH)4(OH,O)6·12H2O

trigonal : 3m : P31c

31.10.02.03

Zaherite

Al12(SO4)5(OH)26·20H2O

triklin : 1, 1 : P1, P1

31.10.03.01

Zippeite

K3(UO2)4(SO4)2O3(OH)·3H2O

monoklin : 2 : C2

31.10.04.01

Natrozippeite

Na5(UO2)8(SO4)4O5(OH)3·12H2O

monoklin : 2/m : P21/n

31.10.04.02

Magnesiozippeite

Mg(UO2)2(SO4)O2·3.5H2O

monoklin : 2/m : C2/m

31.10.04.03

Nickelzippeite

Ni2(UO2)6(SO4)3(OH)10·16H2O

monoklin : 2/m : C2/m

31.10.04.04

Zinczippeite

Zn(UO2)2(SO4)O2·3.5H2O

monoklin : 2/m : C2/m

31.10.04.05

Cobaltzippeite

Co(UO2)2(SO4)O2·3.5H2O

monoklin : 2/m : C2/m

31.10.04.06

Marécottite

Mg3[(UO2)4O3(OH)(SO4)2]2(H2O)28

triklin : 1 : P1

31.10.04.07

Copiapite

Fe2+Fe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

31.10.05.01

Magnesiocopiapite

MgFe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

31.10.05.02

Cuprocopiapite

CuFe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

31.10.05.03

Ferricopiapite

Fe2-33+Fe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

31.10.05.04

Calciocopiapite

CaFe43+(SO4)6(OH)2·19 H2O

triklin : 1 : P1

31.10.05.05

Zincocopiapite

ZnFe43+(SO4)6(OH)2·18H2O

triklin : 1 : P1

31.10.05.06

Aluminocopiapite

(Al,Mg)Fe3+4(SO4)6(OH,O)2·20H2O

triklin : 1 : P1

31.10.05.07

Clairite

(NH4)2(Fe3+,Mn3+)3(SO4)4(OH)3·3H2O

31.10.08.01

Caminite

Mg1.4(SO4)(OH)0.8·0.2H2O

tetragonal : 4/mmm : I41/amd

31.10.09.01

Other languages

German

Caminit

Spanish

Caminita

English

Caminite

French

Caminite

Russian

Каминит

IMA Number

IMA 1983-015

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

German pages

DeWikiPedia - search for: Caminit
Google-Bilder-Suche - search for: Caminit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Caminit

English pages

Mindat - search for: Caminite
Webmineral - search for:Caminite
Handbook-of-Mineralogy - search for: Caminite
RRUFF - Raman, XRD and other mineral data - search for: Caminite
RRUFF - References and PDF downloads - search for: Caminite
American-Mineralogist-Crystal-Structure-Database - search for: Caminite
Athena - search for: Caminite

Russian pages

Webmineral.ru - search for: Каминит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Caminit
Crystal-Treasure.com - search for: Caminit
Bosse - search for: Caminit



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