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Bischofite

Pictures (1 Images total)

Bischofit
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Bischofit
Körner bis 2 mm; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Kasachstan/Atyrau oblysy/Atyrau (Gur'yev)/Inder B-Lagerstätte und Salzdom
Mineral: Bischofite
Image: 1261161971
Rating: 2.5 (votes: 2)
License: Usage for Mineralienatlas project only
Bischofit

Körner bis 2 mm; Fundort: Inder See, Atyrau, Atyrau oblysy, Kasachstan
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-12-18
Locality: Inder B-Lagerstätte und Salzdom / Atyrau (Gur'yev) / Atyrau oblysy / Kasachstan

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 1.00 - 2.00
Solubility +++ H2O, Alkohol, Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

MgCl2·6 H2O

Chemical composition

Chlor, Magnesium, Sauerstoff, Wasserstoff

Unit weight: 203.303404 u; Number of atoms in the formula: 21

Info

Empirical formula:

MgCl2·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

5.95

12

57.14

1.0079470

12.0953640
Oxygen

O

47.22

6

28.57

15.9994300

95.9965800
Magnesium

Mg

11.96

1

4.76

24.3050600

24.3050600
Chlorine

Cl

34.88

2

9.52

35.4532000

70.9064000

Strunz 9th edition incl. updates

3.BB.15

3: Halide (Fluoride, Chloride, Bromide, Iodide)
B: Einfache Halogenide mit H2O
B: M:X = 1:2
15:Bischofit-Gruppe

Lapis Classification

III/A.12-030

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
A: Einfache Halogenide
12: Wasserhaltig, Metall : Halogen = 1:1 bis 1:3

Classification by Hölzel

3.BB.200

3: HALIDES
B: Simple Halides with H2O
B: Me/X=1/2

Dana 8th edition

09.02.09.01

09: Halide Minerals
02: Anhydrous and Hydrated Halides where A (X)2
09: Bischofite Group

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß

Streak color

weiß

max. Birefringence

0.033
Birefringence chart\! Bischofite title=Birefringence chart Bischofite

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

1.495

RI value β

1.507

RI value γ / ε

1.528

Ri mean

1.510

2V angle

Biaxial (+) 79°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

9.90

Cell parameters b (Å)

7.15

Cell parameters c (Å)

6.10

Cell parameters a/b or c/a

1.385

Cell parameters c/b

0.853

Cell parameters α

90°

Cell parameters β

93.70

Cell parameters γ

90°

Z

2

Volume (ų)

430.888

X-Ray Powder Diffraction

4.101(100),
3.556(30),
2.981(30),
2.883(60),
2.740(30),
2.728(50),
2.643(90),
1.849(30)
XRD chart Bischofite

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)

1.00 - 2.00

VHN (Hardness Vickers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.56 (gemessen)

1.567 ( ρ calc. Mineralienatlas )

Instability

+++ H2O, Alkohol, Säuren

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen-Anhalt/Salzlandkreis/Staßfurt/Kaliwerk Leopoldshall

Preface

Author (Name, Year)

Ochsenius, 1877

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 59

Other languages

German

Bischofit

Spanish

Bischofita

French

Bischofite

English

Bischofite

Russian

Бишофит

Simplified Chinese

水氯镁石

Alternative Name

Bischofite (of Ochsenius)

CNMNC symbol

Symbol

Bsf

Locations with GPS information

IDs

GUSID (Global unique identifier short form) nVoDgM9s_ESGQPAN9MDkdg
GUID (Global unique identifier) 80035A9D-6CCF-44FC-8640-F00DF4C0E476
Database ID 406