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Bukovite

Pictures (1 Images total)

Bukovit neben Eukairit und Clausthalit
Views (Image: 1586623179): 779
Bukovit neben Eukairit und Clausthalit  E
Analysed with energy dispersive X-ray spectroscopy EDX

erzmikroskopische Aufnahme von Bukovit neben Eukairit und Clausthalit, Předbořice, Kutná Hora, Tschechische Republik; BB < 1 mm, analysiert mittels REM-EDX

Copyright: Joy Desor
Contribution: openpit 2020-04-11
Locality: Uranlagerstätte Předbořice / Předbořice / Kovářov / Pisek, Bezirk / Südböhmische (Jihocesky kraj) / Tschechien

Collectors Summary

Color grau braun, schwarz
Streak color 1971
Hardness (Mohs) 2.75
Solubility ++ HNO3, - HCl, KOH
Crystal System tetragonal, I4/mmm

Chemism

Chem­ical formula

Tl2Cu3FeSe4

Chem­ical com­po­si­tion

Eisen, Kupfer, Selen, Thallium

Unit weight: 971.10274 u; Number of atoms in the formula: 10

Info

Empirical formula:

Tl2Cu3FeSe4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Iron

Fe

5.75

1

10.00

55.8452000

55.8452000

Copper

Cu

19.63

3

30.00

63.5463000

190.6389000

Selenium

Se

32.53

4

40.00

78.9630000

315.8520000

Thallium

Tl

42.09

2

20.00

204.3833200

408.7666400

Anal­y­sis wt%

Ø Se : 31.30, Cu : 21.00, Tl : 42.20, Fe : 5.90 (Ref: Bulletin de Mineralogie 71)

Strunz 9th edi­tion incl. updates

2.BD.30

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
D: mit Quecksilber (Hg), Thallium (Tl)
30:Thalcusit-Gruppe

Lapis Clas­sifica­tion

II/F.04-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
F: Sulfide mit nichtmetallischem Charakter
4: Alkalisulfide

Clas­sifica­tion by Hölzel

2.BD.320

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
D: With Hg,Tl,(Na,K)
3: Thalcusite-Sabatierite-Group (with Tl,K)

Dana 8th edi­tion

02.05.05.02

02: Sulfide Minerals
05: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=3:2
05: Thalcusite Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

grau braun, schwarz

Streak color

1971

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/mmm

Space Group number

139

Space Group

I4/mmm

Cell param­e­ters a (Å)

3.976

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

13.70

Cell param­e­ters a/b or c/a

3.446

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

1

Volumne (ų)

216.577

X-Ray Pow­der Diffrac­tion

3.428(50),
2.998(100),
2.600(90),
2.255(70),
1.987(70),
1.771(80),
1.713(50),
1.656(60)

XRD chart Bukovite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.75

VHN (Hard­ness Vick­ers)

64 (20g)

Density (g/cm³)

7.36

7.445 ( ρ calc. Mineralienatlas )

Insta­bil­ity

++ HNO3, - HCl, KOH

Preface

Author (Name, Year)

Johan & Kvacek, 1971

References

Bulletin de la Société Française Minéralogie et de Cristallographie 94 (1971), 529

Other languages

German

Bukovit

Spanish

Bukovita

English

Bukovite

French

Bukovite

Russian

Буковит

Traditional Chinese

硒鉈鐵銅礦

Simplified Chinese

硒铊铁铜矿

Japanese

ブコバイト

CNMNC (IMA)-Number

IMA 1970-029

CNMNC symbol

Symbol

Bko

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Буковит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Bukovit
Crystal-Treasure.com - search for: Bukovit
Bosse - search for: Bukovit
Edelsteine Neuburg - Gundolf Fischer - search for: Bukovit

Locations with GPS information