https://www.mineral-bosse.de
https://www.edelsteine-neuburg.de
https://www.mineraliengrosshandel.com
https://weloveminerals.com/
https://www.mineralbox.biz
'._('einklappen').'
 

Yafsoanite

Collectors Summary

Color hellbraun, dunkelbraun
Lustre Glasglanz
Hardness (Mohs) 5.5
Solubility +++ Säuren
Crystal System kubisch, Ia3d
Morphology kubisch

Chemism

Chemical formula

{Ca3}[Te6+2](Zn3)O12

Empirical formula (analysis)

(Ca2.62Pb0.50)Zn2.64(Te1.04O6)2

Chemical composition

Calcium, Tellur, Zink, Sauerstoff

Unit weight: 838.698624 u; Number of atoms in the formula: 19.84

Info

Empirical formula:

(Ca2.62Pb0.50)Zn2.64(Te1.04O6)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

22.89

12

60.48

15.9994300

191.9931600
Calcium

Ca

12.52

2.62

13.21

40.0784000

105.0054080
Zinc

Zn

20.59

2.64

13.31

65.4094000

172.6808160
Tellurium

Te

31.65

2.08

10.48

127.6030000

265.4142400
Lead

Pb

12.35

0.5

2.52

207.2100000

103.6050000

Analysis wt%

ZnO : 28.93, PbO : 12.70, CaO : 16.75, TeO3 : 41.62 (Ref: berechnet)

Strunz 9th edition incl. updates

4.CC.25

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
C: Mit großen und mittelgroßen Kationen
25:Yafsoanit-Gruppe

Lapis Classification

IV/K.15-030

IV: OXIDE
K: Sulfite, Selenite, Tellurite
15: Tellurate mit [Te6+O6] 6--Gruppen und verwandte Strukturen

Classification by Hölzel

4.DM.180

4: OXIDES
D: Dioxides
M: Oxides with Garnet structure

Dana 8th edition

07.02.14.01

07: Multiple Oxides
02: Multiple Oxides (A+ B++)2 X4 Spinel group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Garnet supergroup  ⇒ Oxide garnets (Z charge 6)

Optical Properties

Color

hellbraun, dunkelbraun

Diaphaneity (Transparency)

transparent, durchscheinend

Lustre

Glasglanz

RI value α / ω / n

1.800

Ri mean

1.800

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell parameters a (Å)

12.635

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

2017.092

Crystal structure

aufgeklärt, Struktur vom Granat-Typ

X-Ray Powder Diffraction

4.47(30),
3.16(80),
2.821(90),
2.581(100),
1.751(30),
1.683(100),
1.577(30),
1.024(50)
XRD chart Yafsoanite

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

Morphology

kubisch

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.5

VHN (Hardness Vickers)

696 (30g)

Density (g/cm³)

5.54 (berechnet) 5.4 - 5.55 (gemessen)

5.523 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Sacha (Sakha, Jakutien, Якутия), Republik/Aldan, Ulus (Rajon)/Kuranakh

Type material

Geological Museum, Yakutsk Scientific Center, Academy of Sciences, Yakutsk, Russland

A. E. Fersman Mineralogical Museum, Academy of Sciences, Moskow, Russland

Collection number of type material

mk-111 (Yakutsk); 84397 (Moskau)

Preface

Name from

Für die Yakutskii Filial Sibirskogo Otdeleniya Akademii Nauk (Yakut Filiale, Sibirische Abteilung der Akademie der Wissenschaften, YAFSOAN in Russisch).

Author (Name, Year)

Kim & Zayakina & Lavrent'ev, 1982

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 111 (1982), 118

Stuart J. Mills, Anthony R. Kampf, Uwe Kolitsch, Robert M. Housley, Mati Raudsepp: The crystal chemistry and crystal structure of kuksite, Pb3Zn3Te6+P2O14, and a note on the crystal structure of yafsoanite, (Ca,Pb)3Zn(TeO6)2. American Mineralogist 95 (2010) - [Struktur ermittelt, Struktur vom Granat-Typ]

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel]

IMA group assignments

 
Garnet supergroup
{X3}[Y2](Z3)φ12
 
 

 
 
Oxide garnets (Z charge 6)
 
 
 

 
 
 
Yafsoanite
{Ca3}[Te6+2](Zn3)O12
kubisch
Ia3d

Refresh list

Actuality: 17. Jan 2025 - 17:06:54

Other languages

German

Yafsoanit

Spanish

Yafsoanita

English

Yafsoanite

French

Yafsoanite

Russian

Яфсоанит

CNMNC (IMA)-Number

IMA 1981-022

CNMNC symbol

Symbol

Yaf

Locations with GPS information

IDs

GUSID (Global unique identifier short form) rFQYwXzyHEi4SiJibNjuFQ
GUID (Global unique identifier) C11854AC-F27C-481C-B84A-22626CD8EE15
Database ID 4219