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Bellidoite

Collectors Summary

Color cremeweiß
Streak color 1975
Hardness (Mohs) 2.25
Crystal System tetragonal, P42/n,

Chemism

Chem­ical formula

Cu2Se

Chem­ical com­po­si­tion

Kupfer, Selen

Unit weight: 206.0556 u; Number of atoms in the formula: 3

Info

Empirical formula:

Cu2Se

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Copper

Cu

61.68

2

66.67

63.5463000

127.0926000

Selenium

Se

38.32

1

33.33

78.9630000

78.9630000

Anal­y­sis wt%

Cu : 61.50, Se : 38.00 (Ref: Econ.Geol. 75)

Strunz 9th edi­tion incl. updates

2.BA.20

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
A: mit Kupfer (Cu), Silber (Ag), Gold (Au)
20:Berzelianit-Gruppe

Lapis Clas­sifica­tion

II/B.03-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
B: Sulfide, Selenide und Telluride mit Verhältnis Metall : S,Se,Te > 1:1
3: Selenide mit Kupfer vorherrschend

Clas­sifica­tion by Hölzel

2.BA.210

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
A: With Cu,Ag,Au
2: Berzelianite-Weissit-Group

Dana 8th edi­tion

02.04.09.01

02: Sulfide Minerals
04: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=2:1

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

cremeweiß

Streak color

1975

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/m,

Space Group number

86,

Space Group

P42/n,

Cell param­e­ters a (Å)

11.52

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

11.74

Cell param­e­ters a/b or c/a

1.019

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

32

Volumne (ų)

1558.02

X-Ray Pow­der Diffrac­tion

6.80(30),
3.50(10),
3.38(80),
2.32(10),
2.26(50),
2.06(100),
1.763(70),
1.517(10)

XRD chart Bellidoite

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

Physical Properties

Hard­ness (Mohs)

2.25

VHN (Hard­ness Vick­ers)

37 (100g)

Density (g/cm³)

7.03

7.027 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

De Montreuil, 1975

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H301: Giftig bei Verschlucken., H331: Giftig bei Einatmen., H373: Kann die Organe schädigen bei längerer oder wiederholter Exposition., H410: Sehr giftig für Wasserorganismen mit langfristiger Wirkung., P261: Einatmen von Staub / Rauch / Gas / Nebel / Dampf / Aerosol vermeiden., P273: Freisetzung in die Umwelt vermeiden., P301+P310: Bei Verschlucken: Sofort Giftinformationszentrum, Arzt oder … anrufen., P311: Giftinformationszentrum, Arzt oder … anrufen., P501: Inhalt / Behälter … zuführen.

References

Economic Geology 70 (1975), 384

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Bellidoite

Cu2Se

tetragonal : 4/m, : P42/n,

2.BA.20

Berzelianite

Cu2Se

kubisch : m3m : Fm3m

2.BA.20

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Berzelianite

Cu2Se

kubisch : m3m : Fm3m

II/B.03-010

Bellidoite

Cu2Se

tetragonal : 4/m, : P42/n,

II/B.03-020

Crookesite

Cu7(Tl,Ag)Se4

tetragonal : 4 : I4

II/B.03-030

Sabatierite

Cu6TlSe4

II/B.03-040

Umangite

Cu3Se2

tetragonal : 42m : P421m

II/B.03-050

Athabascaite

Cu5Se4

II/B.03-060

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Berzelianite

Cu2Se

kubisch : m3m : Fm3m

2.BA.200

Bellidoite

Cu2Se

tetragonal : 4/m, : P42/n,

2.BA.210

Umangite

Cu3Se2

tetragonal : 42m : P421m

2.BA.220

Athabascaite

Cu5Se4

2.BA.230

Weissite

Cu2-xTe {x ≈ 0.21}

hexagonal : 6/mmm : P6/mmm

2.BA.250

Rickardite

Cu3-xTe2

orthorhombisch : mmm : Pmmn

2.BA.260

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Acanthite

Ag2S

monoklin : 2/m : P21/n

02.04.01.01

Naumannite

Ag2Se

orthorhombisch : 222 : P212121

02.04.01.02

Aguilarite

Ag4SeS

02.04.01.03

Hessite

Ag2Te

monoklin : 2/m : P21/c

02.04.02.01

Cervelleite

Ag4TeS

monoklin : 2/m : P21/n

02.04.02.02

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

02.04.03.01

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

02.04.03.02

Petzite

Ag3AuTe2

kubisch : 432 : I4132

02.04.03.03

Jalpaite

Ag3CuS2

tetragonal : 4/mmm : I41/amd

02.04.04.01

Selenojalpaite

Ag3CuSe2

tetragonal : 4/mmm : I41/amd

02.04.04.02

Mckinstryite

Ag5Cu3S4

orthorhombisch : mmm, mm2 : Pnma

02.04.05.01

Stromeyerite

AgCuS

orthorhombisch : mm2 : Cmc21

02.04.06.01

Eucairite

CuAgSe

orthorhombisch : mmm : Pmmn

02.04.06.02

Chalcocite

Cu2S

monoklin : 2/m : P21/c

02.04.07.01

Djurleite

Cu31S16

monoklin : 2/m : P21/n

02.04.07.02

Digenite

Cu1.8S

trigonal : 3m : R3m

02.04.07.03

Roxbyite

Cu58S32

triklin : 1 : P1

02.04.07.04

Anilite

Cu7S4

orthorhombisch : mmm : Pnma

02.04.07.05

Geerite

Cu8S5

trigonal : 32, 3m, 3m : R32, R3m, R3m

02.04.07.06

Spionkopite

Cu39S28

trigonal : 3m, 32, 3m : P3m1, P321, P3m1

02.04.07.07

Weissite

Cu2-xTe {x ≈ 0.21}

hexagonal : 6/mmm : P6/mmm

02.04.08.01

Bellidoite

Cu2Se

tetragonal : 4/m, : P42/n,

02.04.09.01

Other languages

German

Bellidoit

English

Bellidoite

French

Bellidoite

Spanish

Bellidoíta

Simplified Chinese

β硒銅礦

Russian

Беллидоит

IMA Number

IMA 1970-050

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

German pages

DeWikiPedia - search for: Bellidoit
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English pages

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RRUFF - References and PDF downloads - search for: Bellidoite
American-Mineralogist-Crystal-Structure-Database - search for: Bellidoite
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Russian pages

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German pages

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