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Ernstburkeite

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Formula:
Mg(CH
 
3
SO
 
3
)
 
2
 · 12H
 
2
O
System:TrigonalColour:Colourless
Name:Named after Ernst Burke, mineralogist and former Head of the IMA Commission on New Minerals, Nomenclature and Classification.


Known as a synthetic compound with the chemical name magnesium methanesulphonate hydrate.

Classification of Ernstburkeite

IMA status:Approved 2011
mindat.org URL:http://www.mindat.org/min-41897.html
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Type Occurrence of Ernstburkeite

Type Locality:Dome Fuji station, Eastern Antarctica, Antarctica
General Appearance of Type Material:Solid inclusions of a few microns hosted in ice.
Place of Conservation of Type Material:In a cold room (-50 °C) at the Institute of Low Temperature Science at Hokkaido University, Sapporo, Japan (catalogue No. 81,616).
Geological Setting of type material:In an Antarctic ice core.
Associated Minerals at type locality:
IceGypsum

Physical Properties of Ernstburkeite

Lustre:Waxy
Comment:Most physical properties were collected on synthetic material.
Colour:Colourless
Streak:White
Comment:Mohs hardness is lower than 2
Tenacity:Sectile
Cleavage:None Observed
Parting:Good
Fracture:Conchoidal
Density (calculated):1.364 g/cm3

Crystallography of Ernstburkeite

Crystal System:Trigonal
Class (H-M):3 - Rhombohedral
Space Group:R3
Cell Parameters:a = 9.2715(1) Å, c = 21.1298(4) Å
Ratio:a:c = 1 : 2.279
Unit Cell Volume:V 1572.99 ų
Z:3
X-Ray Powder Diffraction:
d-spacingIntensity
7.04 (42)
6.39 (39)
4.64 (100)
4.41 (44)
3.87 (89)
3.75 (31)
3.74 (35)

Optical Data of Ernstburkeite

Type:Uniaxial (+)
RI values: nω = 1.402() nε = 1.408(1)
Maximum Birefringence:δ = 0.006

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Pleochroism:Non-pleochroic
Comments:Optical properties were collected on synthetic material.

Chemical Properties of Ernstburkeite

Formula:
Mg(CH
 
3
SO
 
3
)
 
2
 · 12H
 
2
O
Essential elements:C, H, Mg, O, S
All elements listed in formula:C, H, Mg, O, S

Other Names for Ernstburkeite

Synonyms:
IMA2010-059
Other Languages:

Other Information

Fluorescence in UV light:Non-fluorescent.
Other Information:Readily soluble in water.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ernstburkeite

Reference List:

- +
Sakurai, T., Genceli Güner, F.E. and Hondoh, T. (2011) Ernstburkeite , IMA 2010-059. CNMNC Newsletter No. 8, April 2011, page 292; Mineralogical Magazine, 75, 289-294.

Genceli Güner, F. E., Sakurai, T. & Hondoh, T. (2013): Ernstburkeite. Mg(CH3SO3)2.12H2O, a new mineral from Antarctica. European Journal of Mineralogy, 25, 79-84.

Internet Links for Ernstburkeite

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    • Localities for Ernstburkeite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    Antarctica
     
    • Eastern Antarctica
    		Sakurai, T., Genceli Güner, F.E. and Hondoh, T. (2011) Ernstburkeite , IMA 2010-059. CNMNC Newsletter No. 8, April 2011, page 292; Mineralogical Magazine, 75, 289-294.
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