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Leonite

Pictures (15 Images total)

Leonit
Views (Image: 1296597207): 3558
Leonit

Leonit auf Halit; Größe: 55x47x34 mm; Fundort: Kaliwerk Wintershall, Heringen, Werratal, Nordhessen, Hessen, Deutschland

Copyright: Rob Lavinsky
Contribution: slugslayer 2011-02-01
Locality: Kaliwerk Wintershall / Heringen / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland
Leonit mit Halit
Views (Image: 1215810484): 5462
Leonit mit Halit

FO.: Grube Neuhof - Ellers bei Fulda, Hessen, Deutschland / Stufengröße: 12 x 9,5 cm

Collection: Museum für Naturkunde Gera
Copyright: Hrouda
Contribution: Hrouda 2008-07-11
Locality: Kaliwerk Neuhof-Ellers / Neuhof / Fulda, Landkreis / Kassel, Bezirk / Hessen / Deutschland
Leonit
Views (Image: 1296597439): 3772
Leonit

Leonit auf Halit; Größe: 97x90x42 mm; Fundort: Kaliwerk Wintershall, Heringen, Werratal, Nordhessen, Hessen, Deutschland

Copyright: Rob Lavinsky
Contribution: slugslayer 2011-02-01
Locality: Kaliwerk Wintershall / Heringen / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland
Leonit
Views (Image: 1312663398): 3812
Leonit

Größe: 56x54 mm; Fundort: Sigmundshall, Wunstorf, Hannover, Niedersachsen, Deutschland

Collection: Stan Alexander
Copyright: Rock Currier
Contribution: slugslayer 2011-08-06
Locality: Kalibergbau Sigmundshall / Wunstorf / Hannover, Region / Niedersachsen / Deutschland
Leonit
Views (Image: 1341730336): 2880
Leonit

Leonit psm. nach Pikromerit; Größe: 68x47 mm; Fundort: Kalusz, Iwano-Frankiwsk Oblast, Ukraine

Collection: Royal Ontario Museum
Copyright: Rock Currier
Contribution: slugslayer 2012-07-08
Locality: Kalusa (Kalusz) Salzlagerstätte / Kalusch, Rajon / Iwano-Frankiwsk (Ivanovo-Frankovsk), Oblast / Ukraine
Leonit
Views (Image: 1312663021): 940
Leonit

Leonit psm. nach Picromerit, mit Halit; Größe: 11,4 x 9,4 cm; Fundort: Kalusz, Iwano-Frankiwsk Oblast, Ukraine

Collection: Dwight Weber
Copyright: Rock Currier
Contribution: slugslayer 2011-08-06
Locality: Kalusa (Kalusz) Salzlagerstätte / Kalusch, Rajon / Iwano-Frankiwsk (Ivanovo-Frankovsk), Oblast / Ukraine

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 2.50 - 3.00
Solubility +++ H2O
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

K2Mg(SO4)2·4H2O

Chem­ical com­po­si­tion

Magnesium, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 366.689416 u; Number of atoms in the formula: 25

Info

Empirical formula:

K2Mg(SO4)2·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.20

8

32.00

1.0079470

8.0635760

Oxygen

O

52.36

12

48.00

15.9994300

191.9931600

Magnesium

Mg

6.63

1

4.00

24.3050600

24.3050600

Sulfur

S

17.49

2

8.00

32.0655000

64.1310000

Potassium

K

21.33

2

8.00

39.0983100

78.1966200

Anal­y­sis wt%

K2O : 25.69, MgO : 10.99, SO3 : 43.67, H2O : 19.65 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

7.CC.55

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
C: Mit mittelgroßen und großen [Kationen]
55:Leonit-Gruppe

Lapis Clas­sifica­tion

VI/C.18-030

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
18: Mittelgroße und sehr große Kationen

Clas­sifica­tion by Hölzel

7.CD.510

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
D: Sulfates, C medium + large
5: Blödite-Group

Dana 8th edi­tion

29.03.03.03

29: Hydrated Acid and Sulfates
03: Hydrated Acid and Sulfates where (A+)2 B (XO4)2 · x(H2O)
03: Blodite Group

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

max. Birefrin­gence

0.008

Birefringence chart\! Leonite title=Birefringence chart Leonite

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

1.479

RI value β

1.482

RI value γ / ε

1.487

Ri mean

1.483

2V angle

Biaxial (+) 90°

Optical Data Luminescence

Color LW-UV (365nm)

 

weiß

Color SW-UV (254nm)

 

weiß

Color SW-UV After­glow (254nm)

 

weiß

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

11.78

Cell param­e­ters b (Å)

9.52

Cell param­e­ters c (Å)

9.88

Cell param­e­ters a/b or c/a

1.237

Cell param­e­ters c/b

1.038

Cell param­e­ters α

90°

Cell param­e­ters β

95.28

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1103.297

X-Ray Pow­der Diffrac­tion

5.88(20),
3.49(40),
3.42(100),
3.31(40),
3.04(50),
2.88(30),
2.38(50),
2.17(20)

XRD chart Leonite

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)

2.50 - 3.00

VHN (Hard­ness Vick­ers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.201 (gemessen)

2.207 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

Tenne, 1896

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 400

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

Leonite

K2Mg(SO4)2·4H2O

monoklin : 2/m : C2/m

7.CC.55

Mereiterite

K2Fe2+[SO4]2·4H2O

monoklin : 2/m : C2/m

7.CC.55

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

Blödite

Na2Mg(SO4)2·4H2O

monoklin : 2/m : P21/a

VI/C.18-010

Nickelblödite

Na2(Ni,Mg)(SO4)2·4H2O

monoklin : 2/m : P21/a

VI/C.18-020

Changoite

Na2Zn[SO4]2·4H2O

monoklin : 2/m : P21/a

VI/C.18-025

Leonite

K2Mg(SO4)2·4H2O

monoklin : 2/m : C2/m

VI/C.18-030

Mereiterite

K2Fe2+[SO4]2·4H2O

monoklin : 2/m : C2/m

VI/C.18-035

Konyaite

Na2Mg(SO4)2·5H2O

monoklin : 2/m : P21/c

VI/C.18-040

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

Blödite

Na2Mg(SO4)2·4H2O

monoklin : 2/m : P21/a

7.CD.500

Leonite

K2Mg(SO4)2·4H2O

monoklin : 2/m : C2/m

7.CD.510

Mereiterite

K2Fe2+[SO4]2·4H2O

monoklin : 2/m : C2/m

7.CD.515

Nickelblödite

Na2(Ni,Mg)(SO4)2·4H2O

monoklin : 2/m : P21/a

7.CD.520

Manganoblödite

Na2Mn(SO4)2·4H2O

monoklin : 2/m : P21/a

7.CD.530

Goldichite

KFe3+(SO4)2·4H2O

monoklin : 2/m : P21/c

7.CD.570

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

Syngenite

K2Ca(SO4)2·H2O

monoklin : 2/m : P21/m

29.03.01.01

Koktaite

(NH4)2Ca(SO4)2·H2O

monoklin : 2/m : P21/m

29.03.01.02

Kröhnkite

Na2Cu(SO4)2· 2H2O

monoklin : 2/m : P21/c

29.03.02.01

Blödite

Na2Mg(SO4)2·4H2O

monoklin : 2/m : P21/a

29.03.03.01

Nickelblödite

Na2(Ni,Mg)(SO4)2·4H2O

monoklin : 2/m : P21/a

29.03.03.02

Leonite

K2Mg(SO4)2·4H2O

monoklin : 2/m : C2/m

29.03.03.03

Mereiterite

K2Fe2+[SO4]2·4H2O

monoklin : 2/m : C2/m

29.03.03.04

Changoite

Na2Zn[SO4]2·4H2O

monoklin : 2/m : P21/a

29.03.03.05

Konyaite

Na2Mg(SO4)2·5H2O

monoklin : 2/m : P21/c

29.03.05.01

Picromerite

K2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

29.03.06.01

Cyanochroite

K2Cu(SO4)·6H2O

monoklin : 2/m : P21/c

29.03.06.02

Mohrite

(NH4)2Fe2+(SO4)2·6H2O

monoklin : 2/m : P21/a

29.03.07.01

Boussingaultite

(NH4)2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

29.03.07.02

'Nickelboussingaultite'

(NH4)2(Ni,Mg)(SO4)2·6H2O

29.03.07.03

Mosesite

Hg2N(Cl,SO4,MoO4,CO3)·H2O

kubisch : 43m : F43m

29.03.08.01

Other languages

German

Leonit

Spanish

Leonita

French

Leonite

English

Leonite

Russian

Леонит

Simplified Chinese

钾镁矾

Alternative Name

German

Kalium-Astrakanit

German

Kalium-Blödit

Leonite (of Tenne)

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Леонит

Mineral Dealer

German pages

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

Locations with GPS information