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Bütschliite

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Bütschliit
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Bütschliit (SNr: A006195)

Hellgraues, derbes Belegstück; BB = 9,0 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2015-09-12
Locality: Shaving Lake / Renfrew / Renfrew Co. / Ontario / Kanada

Collectors Summary

Color weiß
Streak color weiß
Solubility +++ Säuren, H2O, + feuchte Luft
Crystal System trigonal, R3m

Chemism

Chem­ical formula

K2Ca(CO3)2

Chem­ical com­po­si­tion

Calcium, Kalium, Kohlenstoff, Sauerstoff

Unit weight: 238.29316 u; Number of atoms in the formula: 11

Info

Empirical formula:

K2Ca(CO3)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

10.08

2

18.18

12.0107800

24.0215600

Oxygen

O

40.29

6

54.55

15.9994300

95.9965800

Potassium

K

32.82

2

18.18

39.0983100

78.1966200

Calcium

Ca

16.82

1

9.09

40.0784000

40.0784000

Anal­y­sis wt%

K2O : 39.53, CaO : 23.53, CO2 : 36.94 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

5.AC.15

5: Carbonate (Carbonate, Nitrate)
A: Carbonate ohne weitere Anionen, ohne H2O
C: Alkali- und Alkali-Erden-Carbonate
15:Bütschliit-Gruppe

Lapis Clas­sifica­tion

V/B.05-060

V: NITRATE, CARBONATE UND BORATE
B: Wasserfreie Carbonate [CO3] 2-, ohne fremde Anionen

Clas­sifica­tion by Hölzel

5.AB.280

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
A: Carbonates (-Anions -Water)
B: Carbonates: hexagonal or trigonal
2: Double Carbonates - Dolomite-Group

Dana 8th edi­tion

14.03.01.01

14: Anhydrous Carbonates
03: Anhydrous Carbonates with Compound Formula A+2 B++ (CO3)2

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefrin­gence

0.152

Birefringence chart\! Bütschliite title=Birefringence chart Bütschliite

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

1.605

RI value γ / ε

1.453

Ri mean

1.554

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

166

Space Group

R3m

Cell param­e­ters a (Å)

5.38

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

18.12

Cell param­e­ters a/b or c/a

3.368

Cell param­e­ters c/b

-

Z

3

Volumne (ų)

454.207

X-Ray Pow­der Diffrac­tion

3.03(80),
2.860(100),
2.688(80),
2.251(70),
2.070(80),
1.960(70),
1.690(80),
1.612(70)

XRD chart Bütschliite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.61 (berechnet)

2.613 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren, H2O, + feuchte Luft

Preface

Name from

Otto Bütschli (1848-1920), Professor für Zoologie an der Universität Heidelberg; er untersuchte die synthetische Verbindung.

Author (Name, Year)

Milton & Axelrod, 1947

References

Milton, C., Axelrod, J. American Mineralogist 32 (1947), 607-624.

American Mineralogist 59 (1974), 353

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

Bütschliite

K2Ca(CO3)2

trigonal : 3m : R3m

5.AC.15

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

Juangodoyite

Na2Cu(CO3)2

monoklin : 2/m : P21/a

V/B.05-005

Eitelite

Na2Mg(CO3)2

trigonal : 3 : R3

V/B.05-010

Nyerereite

Na2Ca(CO3)2

orthorhombisch : mm2 : Cmc21

V/B.05-020

Gregoryite

(Na2,K2,Ca)CO3

hexagonal : 6mm : P63mc

V/B.05-040

Fairchildite

K2Ca(CO3)2

hexagonal : 6/mmm : P63/mmc

V/B.05-050

Zemkorite

(Na,K)2Ca(CO3)2

hexagonal : 6mm, 6m2, 6/mmm : P63mc, P62c, P63/mmc

V/B.05-055

Bütschliite

K2Ca(CO3)2

trigonal : 3m : R3m

V/B.05-060

Shortite

Na2Ca2(CO3)3

orthorhombisch : mm2 : Amm2

V/B.05-070

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

Dolomite

CaMg(CO3)2

trigonal : 3 : R3

5.AB.200

Ankerite

Ca(Fe2+,Mg,Mn)(CO3)2

trigonal : 3 : R3

5.AB.210

Kutnohorite

CaMn2+(CO3)2

trigonal : 3 : R3

5.AB.220

Minrecordite

CaZn(CO3)2

trigonal : 3 : R3

5.AB.230

Eitelite

Na2Mg(CO3)2

trigonal : 3 : R3

5.AB.240

Norsethite

BaMg(CO3)2

trigonal : 3m : R3m

5.AB.260

Bütschliite

K2Ca(CO3)2

trigonal : 3m : R3m

5.AB.280

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

Bütschliite

K2Ca(CO3)2

trigonal : 3m : R3m

14.03.01.01

Eitelite

Na2Mg(CO3)2

trigonal : 3 : R3

14.03.02.01

Fairchildite

K2Ca(CO3)2

hexagonal : 6/mmm : P63/mmc

14.03.03.01

Zemkorite

(Na,K)2Ca(CO3)2

hexagonal : 6mm, 6m2, 6/mmm : P63mc, P62c, P63/mmc

14.03.03.02

Nyerereite

Na2Ca(CO3)2

orthorhombisch : mm2 : Cmc21

14.03.04.01

Juangodoyite

Na2Cu(CO3)2

monoklin : 2/m : P21/a

14.03.06.01

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Бючлиит

Alternative Name

German

Buetschliit

Spanish

Bütschliita

German

Gel-Calcit

CNMNC symbol

Symbol

Büt

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