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Chesnokovite

Additional Functions

Collectors Summary

Color farblos (Kristalle), weiß bis blass bräunlichgelb (Aggregate)
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2.5
Cleavages vollkommen (010), deutlich (100)(001)
Fracture abgestuft
Solubility nicht stabil an der Luft

Chemism

Chem­ical formula

Na2[SiO2(OH)2]·8H2O

Chem­ical com­po­si­tion

Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 284.2012764 u; Number of atoms in the formula: 33

Info

Empirical formula:

Na2[SiO2(OH)2]·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

6.38

18

54.55

1.0079470

18.1430460

Oxygen

O

67.56

12

36.36

15.9994300

191.9931600

Sodium

Na

16.18

2

6.06

22.9897702

45.9795404

Silicon

Si

9.88

1

3.03

28.0855300

28.0855300

Anal­y­sis wt%

SiO2 : 21.42, Na2O : 21.49, H2O : 54.86 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2007)

Strunz 9th edi­tion incl. updates

9.AC.20

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
C: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] Koordination
20:

Lapis Clas­sifica­tion

VIII/B.16-010

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
16: Kationen mit Koordinationszahlen zwischen [8] und [12]

Clas­sifica­tion by Hölzel

9.AI.660

9: SILICATES
A: Nesosilicates
I: Nesosilicates with OH
6: C large; Bultfonteinite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos (Kristalle), weiß bis blass bräunlichgelb (Aggregate)

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

Lus­tre

Glasglanz

max. Birefrin­gence

0.009

Birefringence chart\! Chesnokovite title=Birefringence chart Chesnokovite

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

1.449

RI value β

1.453

RI value γ / ε

1.458

Ri mean

1.453

2V angle

Biaxial (+) 80°

Crystallography

Cell param­e­ters a (Å)

11.712

Cell param­e­ters b (Å)

16.973

Cell param­e­ters c (Å)

11.565

Cell param­e­ters a/b or c/a

0.690

Cell param­e­ters c/b

0.681

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

2299.0

X-Ray Pow­der Diffrac­tion

5.001(30), 4.788(42), 3.847(89), 2.932(42), 2.832(35), 2.800(97), 2.774(100), 2.035(20)

XRD chart Chesnokovite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.68 gemessen

1.642 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen (010), deutlich (100)(001)

Frac­ture

abgestuft

Tenac­ity

spröde

Insta­bil­ity

nicht stabil an der Luft

Chem­ical Prop­er­ties and Tests

In verdünnter Salzsäure langsam und ohne Aufbrausen löslich.

Preface

Name from

Boris V. Chesnokov (Mineraloge, Russland)

References

Mineralien Welt 04/08, Steffen Jahn, Die neuen Mineralien 2007 - 2008

Other languages

German

Chesnokovit

English

Chesnokovite

Russian

Чесноковит

CNMNC (IMA)-Number

IMA 2006-007

CNMNC symbol

Symbol

Ck

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

German pages

DeWikiPedia - search for: Chesnokovit
Google-Bilder-Suche - search for: Chesnokovit
Mineralienatlas.de (Forum) - search for: Chesnokovit

English pages

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

Russian pages

Webmineral.ru - search for: Чесноковит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Chesnokovit
Crystal-Treasure.com - search for: Chesnokovit
Bosse - search for: Chesnokovit
Edelsteine Neuburg - Gundolf Fischer - search for: Chesnokovit