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Stanevansite

Collectors Summary

Crystal System monoklin, P21/c

Chemism

Chemical formula

Mg(C2H3O3)2⋅2H2O

Chemical composition

Magnesium, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 192.407766 u; Number of atoms in the formula: 20

Info

Empirical formula:

Mg(C2H3O3)2⋅2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

4.19

8

40.00

1.0079470

8.0635760
Carbon

C

24.97

4

20.00

12.0107800

48.0431200
Oxygen

O

58.21

7

35.00

15.9994300

111.9960100
Magnesium

Mg

12.63

1

5.00

24.3050600

24.3050600

IMA status

anerkannt - CNMNC Newsletter 70, Okt. 2022 - Nov.2022

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Glycolate subgroup

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

11.4927(2)

Cell parameters b (Å)

5.8547(1)

Cell parameters c (Å)

12.4711(2)

Cell parameters a/b or c/a

1.963

Cell parameters c/b

2.13

Cell parameters α

90°

Cell parameters β

91.161(1)°

Cell parameters γ

90°

Volume (ų)

838.962

Crystal structure

Neuer Strukturtyp; Struktur ermittelt

X-Ray Powder Diffraction

5.47(62), 5.223(93), 4.787(100), 3.819(73), 3.102(71), 3.018(33), 2.580(20), 2.406(33)
XRD chart Stanevansite

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

(Co-)Type locality

(Co-)Type locality

USA/Arizona/Pima Co./Santa Catalina Mountains/Western end of Pusch Ridge

Type material

Das Typusmaterial ist in den Sammlungen des Alfie Norville Gem & Mineral Museum der Universität von Arizona, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, unter der Katalognummer 22721 (Holotypus) und des RRUFF-Projekts unter der Hinterlegungsnummer R220011 (Cotypus) hinterlegt.

Preface

Author (Name, Year)

Hexiong Yang, Xiangping Gu, Warren Lazar, Ronald B. Gibbs, und Robert T. Downs (2022)

References

Yang, H., Gu, X., Lazar, W., Gibbs, R. B., and Downs, R. T.: Stanevansite, IMA 2022-085, in: CNMNC Newsletter 70, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-591-2022, 2022.

IMA group assignments

Other languages

German

Stanevansit

English

Stanevansite

CNMNC (IMA)-Number

IMA 2022-085

RRUFF ID

R220011

CNMNC symbol

Symbol

Ses

Locations with GPS information

IDs

GUSID (Global unique identifier short form) nJdkq7XzmUafKO2MfYSBMw
GUID (Global unique identifier) AB64979C-F3B5-4699-9F28-ED8C7D848133
Database ID 9253