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Borodaevite

Additional Functions

Collectors Summary

Color schwarz, grau
Streak color schwarz
Lustre Metallglanz
Hardness (Mohs) 3.50 - 4.00
Cleavages wahrnehmbar durch die Elongation von Körnchen
Crystal System monoklin, Cm, C2/m

Chemism

Chem­ical formula

Ag4.83Fe0.21Pb0.45(Bi,Sb)8.84S16

Empir­ical formula (anal­y­sis)

Ag5.10Pb0.47Fe0.23Bi7.73Sb1.59S16.88

Chem­ical com­po­si­tion

Antimon, Bismut, Blei, Eisen, Silber, Schwefel

Unit weight: 3010.64356986 u; Number of atoms in the formula: 32

Info

Empirical formula:

Ag5.10Pb0.47Fe0.23Bi7.73Sb1.59S16.88

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

17.98

16.88

52.75

32.0655000

541.2656400
Iron

Fe

0.43

0.23

0.72

55.8452000

12.8443960
Silver

Ag

18.27

5.1

15.94

107.8682200

550.1279220
Antimony

Sb

6.43

1.59

4.97

121.7601000

193.5985590
Lead

Pb

3.23

0.47

1.47

207.2100000

97.3887000
Bismuth

Bi

53.66

7.73

24.16

208.9803820

1,615.4183529

Anal­y­sis wt%

Ø Ag : 18.05, Pb : 3.22, Fe : 0.43, Bi : 53.47, Sb : 6.42, S : 17.92 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 92)

Strunz 9th edi­tion incl. updates

2.JA.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
J: Sulfosalze mit PbS als Vorbild
A: Ketten als Flächen verbunden
05:Makovickyit-Pavonit-Serie

Lapis Clas­sifica­tion

II/E.09-005

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)
9: Sulfosalze mit Silber vorherrschend (x=6,0 - 1,6); Pavonit-Reihe

Clas­sifica­tion by Hölzel

2.HA.140

2: SULFIDES
H: PbS Archetype
A: With Cu,Ag,Pb
1: Pavonite Series

Dana 8th edi­tion

03.08.10.05

03: Sulfides - Sulfosalts
08: Sulfides - Sulfosalts where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
10: Pavonite Group (Monoclinic: C/2c bismuth sulfosalts)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

schwarz, grau

Streak color

schwarz

Change in color

weiß in reflektiertem Licht

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

2V angle

Biaxial

Pleochro­ism

keiner beobachtet

Bireflectance

sehr schwach

Anisotropism

mäßig, braun

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(420) 39.90, 41.40, 40.65
(440) 40.40, 42.40, 41.40
(460) 39.80, 42.10, 40.95
(480) 39.70, 42.30, 41.00
(500) 39.50, 42.20, 40.85
(520) 39.10, 41.80, 40.45
(540) 39.00, 41.50, 40.25
(560) 38.40, 41.20, 39.80
(580) 38.20, 41.00, 39.60
(600) 37.60, 40.60, 39.10
(620) 37.30, 40.30, 38.80
(640) 37.20, 40.00, 38.60
(660) 36.50, 39.60, 38.05
(680) 36.60, 39.30, 37.95
(700) 36.10, 39.30, 37.70
Reflection chart Borodaevite

Reflec­tiv­ity Ø

39.68

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

m, 2/m

Space Group number

8, 12

Space Group

Cm, C2/m

Cell param­e­ters a (Å)

13.515

Cell param­e­ters b (Å)

4.093

Cell param­e­ters c (Å)

26.023

Cell param­e­ters a/b or c/a

3.302

Cell param­e­ters c/b

6.358

Cell param­e­ters α

90°

Cell param­e­ters β

93.84

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

1436.28

X-Ray Pow­der Diffrac­tion

3.49(80),
3.37(90),
3.24(90),
2.82(100),
2.01(70),
1.992(80),
1.967(60),
1.692(50)
XRD chart Borodaevite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3.50 - 4.00

VHN (Hard­ness Vick­ers)

165 (20g)

Density (g/cm³)

7.90 (berechnet)

6.961 ( ρ calc. Mineralienatlas )

Cleav­ages

wahrnehmbar durch die Elongation von Körnchen

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Sacha (Sakha, Jakutien, Якутия), Republik/Indigirka, Fluss/Ust'-Nera/Alyaskitovoye

Type mate­r­ial

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

Col­lec­tion number of type mate­r­ial

87992

Preface

Name from

Zu Ehren von Yuri Sergeevich Borodaev ( 1923 - ), Russischer Mineraloge , Moskau Staats-Universität , Moskau, Russland

Author (Name, Year)

Nenasheva & Efimov & Sivtzov & Mozgova, 1992

References

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 121 (1992) (4), 113

Other languages

German

Borodaevit

Spanish

Borodaevita

French

Borodaevite

English

Borodaevite

Russian

Бородаевит

CNMNC (IMA)-Number

IMA 1991-037

CNMNC symbol

Symbol

Bdv

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

German pages

 DeWikiPedia - search for: Borodaevit
Google-Bilder-Suche - search for: Borodaevit
Mineralienatlas.de (Forum) - search for: Borodaevit

English pages

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

Russian pages

 Webmineral.ru - search for: Бородаевит

Mineral Dealer

German pages

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