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Grimselite

Pictures (9 Images total)

Grimselit
Views (Image: 1444399242): 871
Grimselit

Bildbreite: 3 mm, Fundort: Einigkeit (Svornost), St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien

Copyright: Stephan Wolfsried
Contribution: thdun5 2015-10-09
Locality: Einigkeit (Svornost) / St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien
Grimselit
Views (Image: 1308610375): 1524
Grimselit

Rovnost I, Jachymov, Tschechien; Bildbreite ca. 4 mm

Collection: Stefan
Copyright: Stefan
Contribution: Stefan 2011-06-21
Locality: Werner Mine (Rovnost) / St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien
Grimselit
Views (Image: 1398029192): 900
Grimselit

grünlichgelbe Grimselit-Kristalle neben Cejkait; Schacht Rovnost I (Wernerschacht), Jàchymov, Tschechien; Bildbreite: 6 mm

Collection: chribiedav
Copyright: chribiedav
Contribution: chribiedav 2014-04-20
Locality: Werner Mine (Rovnost) / St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien
GRIMSELIT
Views (Image: 1349813410): 848
GRIMSELIT (SNr: 00706.)

Schacht Rovnost I "Werner" im Revier St. Joachimsthal, Erzgebirge, CZ BB.: ca. 7mm

Collection: Daniel Neumann
Copyright: Daniel Neumann
Contribution: Neumann 2012-10-09
Locality: Werner Mine (Rovnost) / St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien
Grimselit
Views (Image: 1396851068): 728
Grimselit

Bildbreite: 8 mm; Fundort: Einigkeit, Jáchymov (St. Joachimsthal), Erzgebirge, Karlsbad, Tschechien

Copyright: Stephan Wolfsried
Contribution: Hg 2014-04-07
Locality: Einigkeit (Svornost) / St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien
Grimselit
Views (Image: 1444306625): 462
Grimselit

Bildbreite: 6,4 mm, Fundort: Werner Mine (Rovnost), St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien

Copyright: Luigi Chiappino
Contribution: thdun5 2015-10-08
Locality: Werner Mine (Rovnost) / St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien

Collectors Summary

Color gelb
Streak color blassgelb
Hardness (Mohs) 2.00 - 2.50
Solubility +++ H2O
Crystal System hexagonal, P62c

Chemism

Chem­ical formula

K3Na(UO2)(CO3)3·H2O

Chem­ical com­po­si­tion

Natrium, Kalium, Kohlenstoff, Sauerstoff, Uran, Wasserstoff

Unit weight: 608.3550072 u; Number of atoms in the formula: 22

Info

Empirical formula:

K3Na(UO2)(CO3)3·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.33

2

9.09

1.0079470

2.0158940

Carbon

C

5.92

3

13.64

12.0107800

36.0323400

Oxygen

O

31.56

12

54.55

15.9994300

191.9931600

Sodium

Na

3.78

1

4.55

22.9897702

22.9897702

Potassium

K

19.28

3

13.64

39.0983100

117.2949300

Uranium

U

39.13

1

4.55

238.0289130

238.0289130

Anal­y­sis wt%

K2O : 23.15, Na2O : 5.08, UO3 : 47.19, CO2 : 21.63, H2O : 2.95 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

5.ED.35

5: Carbonate (Carbonate, Nitrate)
E: Uranylcarbonate
D: UO2:CO3 = 1:4
35:Grimselit-Gruppe

Lapis Clas­sifica­tion

V/F.02-010

V: NITRATE, CARBONATE UND BORATE
F: Uranylcarbonate [UO2] 2+ – [CO3] 2-

Clas­sifica­tion by Hölzel

5.EC.300

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
E: Uranyl-Carbonates
C: Uranyl-Carbonates (-Anions +Water)

Dana 8th edi­tion

15.02.06.01

15: Hydrated Carbonates
02: Hydrated Carbonates where A+m B++n (XO3)p · x(H2O), (m+n):p > 1:1

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

gelb

Streak color

blassgelb

max. Birefrin­gence

0.121

Birefringence chart\! Grimselite title=Birefringence chart Grimselite

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

1.601

RI value γ / ε

1.480

Ri mean

1.561

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6m2

Space Group number

190

Space Group

P62c

Cell param­e­ters a (Å)

9.302

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

8.260

Cell param­e­ters a/b or c/a

0.888

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

618.961

X-Ray Pow­der Diffrac­tion

8.09(80),
5.76(100),
4.67(50),
3.65(70),
3.08(80),
2.86(70),
2.68(70),
2.03(60)

XRD chart Grimselite

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)

2.00 - 2.50

VHN (Hard­ness Vick­ers)

42 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.27 (berechnet)

3.264 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

Walenta, 1972

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Schweizerische Mineralogische und Petrographische Mitteilungen 52 (1972), 93

The Canadian Mineralogist 39 (2001), 1147-1151

Other languages

German

Grimselit

Spanish

Grimselita

French

Grimselite

English

Grimselite

Russian

Гримзелит

CNMNC (IMA)-Number

IMA 1971-040

CNMNC symbol

Symbol

Gsl

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

German pages

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English pages

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American-Mineralogist-Crystal-Structure-Database - search for: Grimselite
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Russian pages

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Mineral Dealer

German pages

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Locations with GPS information