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Ernstburkeite

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Ernst A. J. Burke
Formula:
Mg(CH3SO3)2 · 12H2O
Colour:
Colourless
Lustre:
Waxy
Specific Gravity:
1.364 (Calculated)
Crystal System:
Trigonal
Name:
Named in 2013 by F. E. Güner Genceli, T. Sakurai, and T. Hondoh in honor of Ernst A.J. Burke (August 19th 1943, Kortrijk, Belgium), mineralogist specializing in opaque minerals and Raman spectrometry of fluid inclusions, and professor at the Vrije Universiteit Amsterdam, Netherlands. Former Head of the IMA Commission on New Minerals, Nomenclature and Classification.
The first and only methanesulphonate mineral. One of a few Mg-S-C-H minerals. Third purely organomagnesium mineral after dashkovaite and glushinskite. Known as a synthetic compound with the chemical name magnesium methanesulphonate hydrate.


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Classification of ErnstburkeiteHide

Approved
Approval Year:
2011

Physical Properties of ErnstburkeiteHide

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:
1.364 g/cm3 (Calculated)

Optical Data of ErnstburkeiteHide

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

Formula:
Mg(CH3SO3)2 · 12H2O
IMA Formula:
Mg(CH3SO3)2 · 12H2O

Crystallography of ErnstburkeiteHide

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 V:
1572.99 ų
Z:
3

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.04 (42)
6.39 (39)
4.64 (100)
4.41 (44)
3.87 (89)
3.75 (31)
3.74 (35)

Type Occurrence of ErnstburkeiteHide

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:

Synonyms of ErnstburkeiteHide

Fluorescence of ErnstburkeiteHide

Non-fluorescent.

Other InformationHide

Notes:
Readily soluble in water.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for ErnstburkeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 ErnstburkeiteHide

Localities for ErnstburkeiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Antarctica (TL)
 
  • 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.
Mineral and/or Locality  
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