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Makotoite

Collectors Summary

Crystal System trigonal, R3c

Chemism

Chem­ical formula

Ag12(Cu3Au)S8

Chem­ical com­po­si­tion

Gold, Kupfer, Silber, Schwefel

Unit weight: 1938.548092 u; Number of atoms in the formula: 24

Info

Empirical formula:

Ag12(Cu3Au)S8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

13.23

8

33.33

32.0655000

256.5240000

Copper

Cu

9.83

3

12.50

63.5463000

190.6389000

Silver

Ag

66.77

12

50.00

107.8682200

1,294.4186400

Gold

Au

10.16

1

4.17

196.9665520

196.9665520

IMA sta­tus

anerkannt - CNMNC Newsletter 59, Dezember 2020 - Januar 2021

Min­eral sta­tus

anerkanntes Mineral

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

167

Space Group

R3c

Cell param­e­ters a (Å)

13.584(2)

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

16.781(3)

Cell param­e­ters a/b or c/a

1.235

Cell param­e­ters c/b

-

Volumne (ų)

2681.661

Kristall struc­ture

Das Cu–Au-geordnete Analog von Uytenbogaardtit; Struktur ermittelt

X-Ray Pow­der Diffrac­tion

6.873(29), 2.788(16), 2.690(74), 2.576(100), 2.339(32), 2.104(44), 1.970(34), 1.762(19)

XRD chart Makotoite

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

(Co-)Type locality

(Co-)Type locality

Type mate­r­ial

Das Typmaterial ist hinterlegt in der mineralogischen Sammlung des Geologischen Museums von China, No. 16, Yangrou Hutong, Xisi, Beijing 100031, Volksrepublik China, Katalognummer M16110

Preface

Author (Name, Year)

Xiangping Gu (2021)

References

Gu, X.: Makotoite, IMA 2020-071, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

Other languages

German

Makotoit

English

Makotoite

IMA Number

IMA 2020-071

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

German pages

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

English pages

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

Mineral Dealer

German pages

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