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Liebermannite

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Robert C. Liebermann
Formula:
KAlSi3O8
Specific Gravity:
3.975 (Calculated)
Crystal System:
Tetragonal
Name:
Honors mineral physicist Robert Liebermann (February 6, 1942-) for his many contributions to the study of phases at elevated temperatures and pressures (State University of New York at Stony Brook).
A hollandite-type high-pressure modification of KAlSi3O8.

K analogue of lingunite.
Described from the Zagami basaltic shergottite meteorite.


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Classification of LiebermanniteHide

Approved
Approval Year:
2013
First Published:
2015

Physical Properties of LiebermanniteHide

Transparency:
Transparent
Density:
3.975 g/cm3 (Calculated)

Chemical Properties of LiebermanniteHide

Formula:
KAlSi3O8

Crystallography of LiebermanniteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
I4/m
Setting:
I4/m
Cell Parameters:
a = 9.14(4) Å, c = 2.74(2) Å
Ratio:
a:c = 1 : 0.3
Unit Cell V:
228.90 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.463(53)
2.890(100)
2.036(87)
1.859(16)
1.442(27)
1.368(13)
1.317(16)
1.266(15)

Occurrences of LiebermanniteHide

Paragenetic Mode(s):

Type Occurrence of LiebermanniteHide

General Appearance of Type Material:
15 micron aggregates
Place of Conservation of Type Material:
Smithsonian Institution’s National Museum of Natural History, Washington DC, USA, registration number USNM 7619
Geological Setting of Type Material:
Shocked meteorite
Associated Minerals at Type Locality:
Reference:
Ma, C., Tschauner, O., Beckett, J.R., Rossman, G.R., Prescher, C., Prakapenka, V.B., Bechtel H.A., MacDowell, A. (2017) Liebermannite, KAlSi3O8, a new shock-metamorphic, high-pressure mineral from the Zagami Martian meteorite. Meteoritics & Planetary Science: 2017: 1-12; doi: 10.1111/maps.13000.

Synonyms of LiebermanniteHide

Relationship of Liebermannite to other SpeciesHide

Structurally related to group(s):
Hollandite SupergroupA2+[M4+6M3+2]O16

Other InformationHide

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 LiebermanniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Langenhorst, F. and Poirier, J.-P. (2000) ‘Eclogitic’ minerals in a shocked basaltic meteorite. Earth and Planetary Science Letters: 176: 259-265.
Ma, C., Tschauner, O. and Beckett, J.R. (2014) Liebermannite, IMA 2013-128. CNMNC Newsletter No. 20, June 2014, page 551. Mineralogical Magazine: 78: 549-558.
Ma, C., Tschauner, O., Beckett, J.R., Rossman, G.R. (2015) Liebermannite: A new potassic hollandite (KAlSi3O8) from the Zagami basaltic shergottite. 46th Lunar and Planetary Science Conference, Abstract #1401. [http://www.hou.usra.edu/meetings/lpsc2015/pdf/1401.pdf]
Ma, C., Tschauner, O., Beckett, J.R., Rossman, G.R., Prescher, C., Prakapenka, V.B., Bechtel H.A., MacDowell, A. (2017) Liebermannite, KAlSi3O8, a new shock-metamorphic, high-pressure mineral from the Zagami Martian meteorite. Meteoritics & Planetary Science: 2017: 1-12; doi: 10.1111/maps.13000.

Internet Links for LiebermanniteHide

Localities for LiebermanniteHide

ⓘ - 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.
Nigeria (TL)
 
  • Katsina State
Langenhorst, F. and Poirier, J.-P. (2000): ‘Eclogitic’ minerals in a shocked basaltic meteorite. Earth Planet. Sci. Lett. 176, 259-265. [as "KAlSi3O8-hollandite"]; Ma, C., Tschauner, O., Beckett, J.R., Rossman, G.R. (2015): Liebermannite: A new potassic hollandite (KAlSi3O8) from the Zagami basaltic shergottite. 46th Lunar and Planetary Science Conference, Abstract #1401. [http://www.hou.usra.edu/meetings/lpsc2015/pdf/1401.pdf]; Ma, C. et al. (2018) Liebermannite, KAlSi3O8, a new shock-metamorphic, high-pressure mineral from the Zagami Martian meteorite: Meteoritics & Planetary Science 53 (1): 50-61. (Jan 2018).
Northwest Africa Meteorites
 
Ma, C., Tschauner, O., Beckett, J.R., Rossman, G.R. (2015): Liebermannite: A new potassic hollandite (KAlSi3O8) from the Zagami basaltic shergottite. 46th Lunar and Planetary Science Conference, Abstract #1401.
Mineral and/or Locality  
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