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Bassanite

Pictures (4 Images total)

Bassanit
Views (Image: 1358812628): 2752
Bassanit

Absetzerhalde / Ronneburg / Thüringen / Deutschland; Bildbreite 5 mm.

Collection: Leonardus
Copyright: Leonardus
Contribution: Leonardus 2013-01-22
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland
Bassanit xx
Views (Image: 1175975158): 3474
Bassanit xx

Bildbreite: 4 mm; Fundort: Kladno Mine, Libusin, Kladno, Tschechien

Copyright: loismin
Contribution: loismin 2007-04-07
Locality: Kladno Mine (Schöller Mine; Nejedlý I Mine; Zdenek Nejedlý Mine; Schoeller Mine) / Libusin / Kladno, Bezirk / Mittelböhmen, Region (Stredocesky kraj) / Tschechien
Bassanit
Views (Image: 1267129064): 2824
Bassanit

Größe: 30x26 mm; Fundort: Kimba, Eyre Peninsula, South Australia, Australien

Copyright: John Sobolewski
Contribution: slugslayer 2010-02-25
Locality: Kimba / Eyre Peninsula / South Australia / Australien
Bassanit
Views (Image: 1394811506): 1686
Bassanit

weiße, dünntafelige Bassanit xx gemeinsam auf einer Stufe mit nadeligen Selen xx; Absetzerhalde, Ronneburger Revier, Thüringen, BRD; Bildbreite: 3 mm

Collection: chribiedav
Copyright: chribiedav
Contribution: chribiedav 2014-03-14
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland

Collectors Summary

Color farblos, schneeweiß
Streak color weiß
Solubility +++ H2
Crystal System monoklin, I2

Chemism

Chem­ical formula

CaSO4·0.5H2O

Chem­ical com­po­si­tion

Calcium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 145.149282 u; Number of atoms in the formula: 7.5

Info

Empirical formula:

CaSO4·0.5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.69

1

13.33

1.0079470

1.0079470

Oxygen

O

49.60

4.5

60.00

15.9994300

71.9974350

Sulfur

S

22.09

1

13.33

32.0655000

32.0655000

Calcium

Ca

27.61

1

13.33

40.0784000

40.0784000

Anal­y­sis wt%

CaO : 38.64, SO3 : 55.16, H2O : 6.21 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

7.CD.45

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
D:
45:Bassanit-Gruppe

Lapis Clas­sifica­tion

VI/C.22-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
22: Sehr große Kationen

Clas­sifica­tion by Hölzel

7.CE.550

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
E: Sulfates, C large

Dana 8th edi­tion

29.06.01.01

29: Hydrated Acid and Sulfates
06: Hydrated Acid and Sulfates where A XO4 · x(H2O)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos, schneeweiß

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.025

Birefringence chart\! Bassanite title=Birefringence chart Bassanite

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

1.559

RI value γ / ε

1.584

Ri mean

1.567

2V angle

Uniaxial (+)

Optical Data Luminescence

Color LW-UV (365nm)

 

violett

Color SW-UV (254nm)

 

violett

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2

Space Group number

5

Space Group

I2

Cell param­e­ters a (Å)

12.70

Cell param­e­ters b (Å)

6.83

Cell param­e­ters c (Å)

11.94

Cell param­e­ters a/b or c/a

1.859

Cell param­e­ters c/b

1.748

Cell param­e­ters α

90°

Cell param­e­ters β

90.60

Cell param­e­ters γ

90°

Z

12

Volumne (ų)

1035.631

X-Ray Pow­der Diffrac­tion

6.01(90),
3.465(80),
3.004(90),
2.802(100),
2.136(50),
2.110(40),
1.849(60),
1.843(80)

XRD chart Bassanite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.7

2.793 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2

Preface

Author (Name, Year)

Zambonini, 1910

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 50

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

Bassanite

CaSO4·0.5H2O

monoklin : 2 : I2

7.CD.45

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

Bassanite

CaSO4·0.5H2O

monoklin : 2 : I2

VI/C.22-010

Gypsum

CaSO4·2H2O

monoklin : 2/m : I2/a

VI/C.22-020

Rapidcreekite

Ca2(SO4)(CO3)·4H2O

orthorhombisch : mmm : Pcnb

VI/C.22-025

Ardealite

Ca2(SO4)(HPO4)·4H2O

monoklin : m : Cc

VI/C.22-030

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

Syngenite

K2Ca(SO4)2·H2O

monoklin : 2/m : P21/m

7.CE.500

Koktaite

(NH4)2Ca(SO4)2·H2O

monoklin : 2/m : P21/m

7.CE.510

'Wattevillite'

Na2Ca(SO4)2·4H2O

7.CE.530

Görgeyite

K2Ca5(SO4)6·H2O

monoklin : 2/m : C2/c

7.CE.540

Bassanite

CaSO4·0.5H2O

monoklin : 2 : I2

7.CE.550

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

Bassanite

CaSO4·0.5H2O

monoklin : 2 : I2

29.06.01.01

Kieserite

MgSO4·H2O

monoklin : 2/m : C2/c

29.06.02.01

Szomolnokite

Fe2+SO4·H2O

monoklin : 2/m : C2/c

29.06.02.02

Szmikite

MnSO4·H2O

monoklin : 2/m : C2/c

29.06.02.03

Poitevinite

Cu(SO4)·H2O

triklin : 1 : P1

29.06.02.04

Gunningite

(Zn,Mn)SO4·H2O

monoklin : 2/m : C2/c

29.06.02.05

Dwornikite

(Ni,Fe2+)SO4·H2O

monoklin : 2/m : C2/c

29.06.02.06

Cobaltkieserite

Co[SO4]·H2O

monoklin : 2/m : C2/c

29.06.02.07

Gypsum

CaSO4·2H2O

monoklin : 2/m : I2/a

29.06.03.01

Bonattite

CuSO4·3H2O

monoklin : m : Cc

29.06.05.01

Rozenite

Fe2+SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.01

'Starkeyite'

MgSO4·4H2O

monoklin : 2/m : P21/n

29.06.06.02

Ilesite

(Mn,Zn,Fe2+)SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.03

Aplowite

(Co,Mn,Ni)SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.04

Boyleite

(Zn,Mg)SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.05

Chalcanthite

CuSO4·5H2O

triklin : 1 : P1

29.06.07.01

Siderotil

Fe(SO4)·5H2O

triklin : 1 : P1

29.06.07.02

Pentahydrite

MgSO4·5H2O

triklin : 1 : P1

29.06.07.03

Jôkokuite

MnSO4·5H2O

triklin : 1 : P1

29.06.07.04

Hexahydrite

MgSO4·6H2O

monoklin : 2/m : C2/c

29.06.08.01

Bianchite

(Zn,Fe2+)(SO4)·6H2O

monoklin : 2/m : C2/c

29.06.08.02

Ferrohexahydrite

Fe2+SO4·6H2O

monoklin : 2/m : C2/c

29.06.08.03

Nickelhexahydrite

(Ni,Mg,Fe2+)(SO4)·6H2O

monoklin : 2/m : A2/a

29.06.08.04

Moorhouseite

(Co,Ni,Mn)SO4·6H2O

monoklin : 2/m : C2/c

29.06.08.05

Chvaleticeite

(Mn2+,Mg)SO4·6H2O

monoklin : 2/m : C2/c

29.06.08.06

Retgersite

NiSO4·6H2O

tetragonal : 422, 422 : P41212, P43212

29.06.09.01

Other languages

German

Bassanit

Spanish

Bassanita

English

Bassanite

French

Bassanite

Russian

Бассанит

Simplified Chinese

烧石膏

Alternative Name

English

Hemihydrate

German

Miltonit

Spanish

Miltonita

English

Miltonite

German

Mirupolskit

Spanish

Mirupolskita

English

Mirupolskite

Plaster of Paris

English

PlasterofParis

Polyhydrate

Soluble Anhydrite

Italian

Vibertita

Vibertite

Simplified Chinese

半水石膏

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Бассанит

Mineral Dealer

German pages

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

Locations with GPS information