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Lenaite

Additional Functions

Collectors Summary

Color grau
Streak color dunkelgrau
Hardness (Mohs) 4.5
Cleavages keine
Crystal System tetragonal, I42d

Chemism

Chem­ical formula

AgFeS2

Chem­ical com­po­si­tion

Eisen, Silber, Schwefel

Unit weight: 227.84442 u; Number of atoms in the formula: 4

Info

Empirical formula:

AgFeS2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

28.15

2

50.00

32.0655000

64.1310000

Iron

Fe

24.51

1

25.00

55.8452000

55.8452000

Silver

Ag

47.34

1

25.00

107.8682200

107.8682200

Anal­y­sis wt%

Ø Ag : 46.60, Fe : 24.10, S : 28.90 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 95)

Strunz 9th edi­tion incl. updates

2.CB.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
10:Chalkopyrit-Gruppe

Lapis Clas­sifica­tion

II/C.03-025

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1
3: Chalkopyrit-Gruppe

Clas­sifica­tion by Hölzel

2.CB.270

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
B: With Zn,Cu (etc), Coordination Number ~[4] Framework of Cornersharing Tetrahedra: Sphalerite-Germanite-Family
2: Chalcopyrite-Group

Dana 8th edi­tion

02.09.01.05

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
01: Chalcopyrite Group (Tetragonal: I-42d)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Chalcopyrite group

Optical Properties

Color

grau

Streak color

dunkelgrau

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

42m

Space Group number

122

Space Group

I42d

Cell param­e­ters a (Å)

5.64

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

10.34

Cell param­e­ters a/b or c/a

1.833

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

328.911

X-Ray Pow­der Diffrac­tion

3.137(100),
2.718(10),
1.922(20),
1.920(30),
1.639(20),
1.636(10),
1.246(10),
1.109(10)

XRD chart Lenaite

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)

4.5

VHN (Hard­ness Vick­ers)

310 (10g)

Density (g/cm³)

4.57

4.601 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Tenac­ity

nicht erwähnt

Preface

Author (Name, Year)

Amuzinsky & Zhdanov & Zayakina & Leskova, 1995

References

Strunz Mineralogical Tables 9. Edition.

Mineralogical Record 27: 464.

Amuzinskii, V.A., Zhdanov, Yu.Ya., Zayakina, N.V., and Leskova, N.V. (1995) Lenaite, AgFeS2, a new mineral species. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1995): 124(5):85-91 (in Russian).

Bindi, L., Spry, P.G., Pratesi, G. (2006): Lenaite from the Gies gold–silver telluride deposit, Judith Mountains, Montana, U.S.A.: occurrence, composition, and crystal structure. Canadian Mineralogist: 44: 207-212.

IMA group assignments

Other languages

German

Lenait

French

Lenaite

English

Lenaite

Spanish

Lenaíta

Russian

Ленаит

CNMNC (IMA)-Number

IMA 1994-008

CNMNC symbol

Symbol

Ln

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Ленаит

Mineral Dealer

German pages

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