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Lazaridisite

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Lazaridisit
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Lazaridisit  E
Analysed with energy dispersive X-ray spectroscopy EDX
X
Analysed with X-ray diffraction XRD

farblos/weiße Aggregate von Lazaridisit auf Chalkosin und Germanit, Tsumeb Mine, Otavi Highlands, Namibia; BB 4 mm, analysiert mittels REM-EDX und XRD

Copyright: Joy Desor
Contribution: openpit 2020-05-01
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia

Collectors Summary

Color farblos
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 3
Cleavages keine beobachtet
Fracture unregelmäßig, uneben
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

3CdSO4·8H2O

Chem­ical com­po­si­tion

Cadmium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 769.547652 u; Number of atoms in the formula: 42

Info

Empirical formula:

3CdSO4·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.10

16

38.10

1.0079470

16.1271520

Oxygen

O

41.58

20

47.62

15.9994300

319.9886000

Sulfur

S

12.50

3

7.14

32.0655000

96.1965000

Cadmium

Cd

43.82

3

7.14

112.4118000

337.2354000

Strunz 9th edi­tion incl. updates

4

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)

Clas­sifica­tion by Hölzel

7.CA.175

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
A: Sulfates, C medium

IMA sta­tus

anerkannt August 2012 - CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

Lus­tre

Glasglanz

max. Birefrin­gence

0.018

Birefringence chart\! Lazaridisite title=Birefringence chart Lazaridisite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

α = 1.552(2)

RI value β

β = 1.561(2)

RI value γ / ε

γ = 1.570(2)

2V angle

Biaxial 90(5)° (gemessen) 90° (berechnet)

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz beobachtet

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

14.813(3)

Cell param­e­ters b (Å)

11.902(2)

Cell param­e­ters c (Å)

9.466(2)

Cell param­e­ters a/b or c/a

1.245

Cell param­e­ters c/b

0.795

Cell param­e­ters α

90°

Cell param­e­ters β

97.38(1)°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1655.072

Kristall struc­ture

Neuer Strukturtyp; Struktur bestimmt

X-Ray Pow­der Diffrac­tion

6.874(100), 6.338(69), 5.953(75), 4.529(57), 3.745(73), 3.092(75), 3.003(51), 2.895(42)

XRD chart Lazaridisite

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

Physical Properties

Hard­ness (Mohs)

3

Density (g/cm³)

3.088 (berechnet) 3.10 (gemessen)

3.088 ( ρ calc. Mineralienatlas )

Cleav­ages

keine beobachtet

Frac­ture

unregelmäßig, uneben

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

Griechenland/Attika (Attikí, Attica)/Lavrion (Laurion), Bergbaudistrikt/Km 3, Revier/Esperanza Mine

Type mate­r­ial

Institut für Mineralogie und Kristallographie, University von Wien, Wien, Österreich

Col­lec­tion number of type mate­r­ial

HS13.077

Par­a­ge­n­e­sis of type mate­r­ial

Niedermayrit, Katerinopoulosit, Sphalerit, Galenit, Edwardsit, Chalcanthit, Gips] und Greenockit

Preface

Name from

Stathis Lazaridhis (1953-2010), einem Mineralsammler von Lavrion

Author (Name, Year)

Branko Rieck und Gerald Giester (2012)

References

CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288

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

Kieserite

MgSO4·H2O

monoklin : 2/m : C2/c

7.CA.100

Poitevinite

Cu(SO4)·H2O

triklin : 1 : P1

7.CA.110

Gunningite

(Zn,Mn)SO4·H2O

monoklin : 2/m : C2/c

7.CA.120

Szomolnokite

Fe2+SO4·H2O

monoklin : 2/m : C2/c

7.CA.130

Dwornikite

(Ni,Fe2+)SO4·H2O

monoklin : 2/m : C2/c

7.CA.140

Szmikite

MnSO4·H2O

monoklin : 2/m : C2/c

7.CA.150

Cobaltkieserite

Co[SO4]·H2O

monoklin : 2/m : C2/c

7.CA.160

Voudourisite

CdSO4·H2O

monoklin : 2/m : P21/c

7.CA.170

Lazaridisite

3CdSO4·8H2O

monoklin : 2/m : C2/c

7.CA.175

Other languages

German

Lazaridisit

English

Lazaridisite

Russian

Лазаридисит

IMA Number

IMA 2012-043

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

German pages

DeWikiPedia - search for: Lazaridisit
Google-Bilder-Suche - search for: Lazaridisit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Lazaridisit

English pages

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

Russian pages

Webmineral.ru - search for: Лазаридисит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Lazaridisit
Crystal-Treasure.com - search for: Lazaridisit
Bosse - search for: Lazaridisit

Locations with GPS information