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Hapkeite

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Formula:
Fe
 
2
Si
System:IsometricColour:Silvery, with a slight ...
Name:For Prof. Bruce Hapke
This page provides mineralogical data about Hapkeite.

Classification of Hapkeite

IMA status:Approved 2003
Nickel-Strunz 10th (pending) edition ID:1.BB.35

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
B : Silicides
Dana 8th edition ID:1.1.33.6

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
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Type Occurrence of Hapkeite

Type Locality:Dhofar 280 Lunar meteorite, Dhofar Province (Al Janubiyah Province), Oman
General Appearance of Type Material:Grains from 2 to 30 microns in size.
Year of Discovery:2003
Geological Setting of type material:Lunar meteorite - Dhofar-280 - a fragmental highland breccia with well-preserved primary igneous clasts and negligible terrestrial alteration.
Associated Minerals at type locality:
TroiliteTitaniferous ChromiteIlmenite

Physical Properties of Hapkeite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Silvery, with a slight tarnish

Crystallography of Hapkeite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Pm3m {P4/m 3 2/m}
Cell Parameters:a = 2.831Å
Unit Cell Volume:V 22.69 ų

Chemical Properties of Hapkeite

Formula:
Fe
 
2
Si
Simplified for copy/paste:Fe2Si
All elements listed in formula:Fe, Si

Relationship of Hapkeite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
1.BB.Zangboite
TiFeSi
 
2
1.BB.05Suessite
(Fe,Ni)
 
3
Si
1.BB.05Mavlyanovite
Mn
 
5
Si
 
3
1.BB.10UM2001-18-Si:CuPtSn
(Cu,Pt)
 
4
Si
1.BB.10Perryite
(Ni,Fe)
 
5
(Si,P)
 
2
1.BB.15Fersilicite
FeSi
1.BB.15Naquite
FeSi
1.BB.20Ferdisilicite
FeSi
 
2
1.BB.20Linzhiite
FeSi
 
2
1.BB.25Luobusaite
Fe
 
0.84
Si
 
2
1.BB.30Gupeiite
Fe
 
3
Si
1.BB.40Xifengite
Fe
 
5
Si
 
3

Other Names for Hapkeite

Synonyms:
IMA2003-014
Other Languages:
German:Hapkeit
Simplified Chinese:哈普克矿
Traditional Chinese:哈普克礦

Other Information

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 Hapkeite

Reference List:

- +
Lunar and Planetary Science XXXIV (2003) - New Lunar Mineral HAPKEITE*: Product of Impact-Induced Vapor-Phase Deposition in the Regolith? -
http://www.lpi.usra.edu/meetings/lpsc2003/pdf/1818.pdf

Internet Links for Hapkeite

Search Engines:
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  • Raman and XRD data at RRUFF project
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  • Localities for Hapkeite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Oman
     
    • Dhofar Province (Al Janubiyah Province)
    LPSC 34, abstract 1818; Mahesh Anand, Lawrence A. Taylor, Mikhail A. Nazarov, J. Shu, H.K. Mao, and Russell J. Hemley (2004) Space weathering on airless planetary bodies: Clues from the lunar mineral hapkeite. PNAS 101:6847–6851
    The Moon
     
    • Mare Crisium
    Pavel M. Kartashov data
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