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Hexahydrite

Pictures (8 Images total)

Oppenheimerite white Hexahydrite
Views (Image: 1475007035): 1172
Oppenheimerite white Hexahydrite

Pale green subparallel growths of water worn oppenheimerite on quartz with white hexahydrite. Visually, oppenheimerite is quite similar to fermiite, but its crystal aggregates are more often found ...

Copyright: Travis Olds
Contribution: Stefan 2016-09-27
Locality: Blue Lizard Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA
grünlichgelber Wetherillit mit Hexahydrit
Views (Image: 1475008259): 1009
grünlichgelber Wetherillit mit Hexahydrit

Blades of pale greenish-yellow wetherillite with hexahydrite. Travis Olds 2015; Field of view: 1.7 mm; Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA

Copyright: Travis Olds
Contribution: Stefan 2016-09-27
Locality: Blue Lizard Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA
Hexahydrit xx
Views (Image: 1246089439): 1959, Rating: 6.75
Hexahydrit xx

aus dem Stollen 28, Allchar, Mayden, Macedonien; Größe der Stufe 9 x 5 cm

Collection: loismin
Copyright: loismin
Contribution: loismin 2009-06-27
Locality: Allchar (Alsar) / Roszdan / Kavadarci, Opština / Nordmazedonien
Hexahydrit
Views (Image: 1319094471): 1268
Hexahydrit

Polen/Niederschlesien/Pomorzany Mine; Hexahydrit als sekundäre Bildung an den Streckenstössen; bildbreite ca. 20 cm

Copyright: dendrocopos
Contribution: dendrocopos 2011-10-20
Locality: Pomorzany Mine / Olkusz / Olkusz (Olkuski), Powiat / Kleinpolen (Malopolskie), Woiwodschaft / Polen
Hexahydrit
Views (Image: 1319095463): 1378
Hexahydrit

Polen/Niederschlesien/Pomorzany Mine; Sekundäre Bildung an Streckenstössen; Bildbreite ca.20 cm

Copyright: dendrocopos
Contribution: dendrocopos 2011-10-20
Locality: Pomorzany Mine / Olkusz / Olkusz (Olkuski), Powiat / Kleinpolen (Malopolskie), Woiwodschaft / Polen
Hexahydrit
Views (Image: 1394607928): 563
Hexahydrit

Kamariza, Laurion (Lavrion), Attika, Griechenland. Bildbreite 1 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2014-03-12
Locality: Kamariza / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland

Collectors Summary

Color farblos, weiß, grünlichweiß
Streak color weiß
Solubility +++ H2O
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

MgSO4·6H2O

Chem­ical com­po­si­tion

Magnesium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 228.460224 u; Number of atoms in the formula: 24

Info

Empirical formula:

MgSO4·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

5.29

12

50.00

1.0079470

12.0953640

Oxygen

O

70.03

10

41.67

15.9994300

159.9943000

Magnesium

Mg

10.64

1

4.17

24.3050600

24.3050600

Sulfur

S

14.04

1

4.17

32.0655000

32.0655000

Anal­y­sis wt%

MgO : 17.15, SO3 : 34.52, H2O : 46.42 (Ref: Dana, 7th ed. 2)

Strunz 9th edi­tion incl. updates

7.CB.25

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
B: Mit ausschließlich mittelgroßen Kationen
25:Hexahydrit-Gruppe

Lapis Clas­sifica­tion

VI/C.05-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
5: Mittelgroße Kationen; Hexahydrit-Gruppe

Clas­sifica­tion by Hölzel

7.CB.300

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
B: Vitriol-Group, Mg,Fe,Co,Ni,Mn,Cu,Zn-Sulfates with 4 to 7 Water
3: Hexahydrite-Group

Dana 8th edi­tion

29.06.08.01

29: Hydrated Acid and Sulfates
06: Hydrated Acid and Sulfates where A XO4 · x(H2O)
08: Hexahydrite Group (Space Group: C2/c)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos, weiß, grünlichweiß

Streak color

weiß

Diaphane­ity (Trans­parency)

opak

max. Birefrin­gence

0.031

Birefringence chart\! Hexahydrite title=Birefringence chart Hexahydrite

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

1.425

RI value β

1.452

RI value γ / ε

1.456

Ri mean

1.444

2V angle

Biaxial (-) 38°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

24.44

Cell param­e­ters b (Å)

7.20

Cell param­e­ters c (Å)

10.13

Cell param­e­ters a/b or c/a

3.394

Cell param­e­ters c/b

1.407

Cell param­e­ters α

90°

Cell param­e­ters β

98.37

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

1763.569

X-Ray Pow­der Diffrac­tion

5.5(30),
5.1(20),
4.91(20),
4.41(100),
4.05(30),
2.93(60),
2.78(30),
2.68(20)

XRD chart Hexahydrite

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)

1.76

1.721 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

Johnston, 1911

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 286

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

Bianchite

(Zn,Fe2+)(SO4)·6H2O

monoklin : 2/m : C2/c

7.CB.25

Hexahydrite

MgSO4·6H2O

monoklin : 2/m : C2/c

7.CB.25

Moorhouseite

(Co,Ni,Mn)SO4·6H2O

monoklin : 2/m : C2/c

7.CB.25

Chvaleticeite

(Mn2+,Mg)SO4·6H2O

monoklin : 2/m : C2/c

7.CB.25

Ferrohexahydrite

Fe2+SO4·6H2O

monoklin : 2/m : C2/c

7.CB.25

Nickelhexahydrite

(Ni,Mg,Fe2+)(SO4)·6H2O

monoklin : 2/m : A2/a

7.CB.25

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

Hexahydrite

MgSO4·6H2O

monoklin : 2/m : C2/c

VI/C.05-010

Ferrohexahydrite

Fe2+SO4·6H2O

monoklin : 2/m : C2/c

VI/C.05-020

Chvaleticeite

(Mn2+,Mg)SO4·6H2O

monoklin : 2/m : C2/c

VI/C.05-030

Moorhouseite

(Co,Ni,Mn)SO4·6H2O

monoklin : 2/m : C2/c

VI/C.05-040

Nickelhexahydrite

(Ni,Mg,Fe2+)(SO4)·6H2O

monoklin : 2/m : A2/a

VI/C.05-050

Bianchite

(Zn,Fe2+)(SO4)·6H2O

monoklin : 2/m : C2/c

VI/C.05-060

Retgersite

NiSO4·6H2O

tetragonal : 422, 422 : P41212, P43212

VI/C.05-070

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

Hexahydrite

MgSO4·6H2O

monoklin : 2/m : C2/c

7.CB.300

Bianchite

(Zn,Fe2+)(SO4)·6H2O

monoklin : 2/m : C2/c

7.CB.320

Ferrohexahydrite

Fe2+SO4·6H2O

monoklin : 2/m : C2/c

7.CB.330

Retgersite

NiSO4·6H2O

tetragonal : 422, 422 : P41212, P43212

7.CB.340

Nickelhexahydrite

(Ni,Mg,Fe2+)(SO4)·6H2O

monoklin : 2/m : A2/a

7.CB.345

Moorhouseite

(Co,Ni,Mn)SO4·6H2O

monoklin : 2/m : C2/c

7.CB.350

Chvaleticeite

(Mn2+,Mg)SO4·6H2O

monoklin : 2/m : C2/c

7.CB.360

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

Spanish

Hexahidrita

German

Hexahydrit

French

Hexahydrite

English

Hexahydrite

Russian

Гексагидрит

Simplified Chinese

六水泻盐

Alternative Name

Hexahydrita

Simplified Chinese

六水镁矾

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Гексагидрит

Mineral Dealer

German pages

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

Locations with GPS information