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Daubréelite

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Norton County meteorite, Norton Co., Kansas, USA
© 2008, JGW




Formula:
Fe
2+
 
Cr
3+
2
S
 
4
System:IsometricColour:Black
Lustre:MetallicHardness:4½ - 5
Member of:Linnaeite Group > Thiospinel Group
Name:
Named after Professor Gabriel Auguste Daubrée (1814-1896) of Paris, who worked extensively with meteorites.


Linnaeite Group; Thiospinel Group.

Classification of Daubréelite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/D.01-100
Nickel-Strunz 10th (pending) edition ID:2.DA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
Dana 8th edition ID:2.10.1.11

2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
Hey's CIM Ref.:3.8.4

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
8 : Sulphides etc. of Cr, Mo, W an Mn
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Type Occurrence of Daubréelite

Type Locality:Coahuila meteorite, Bolsom de Mapimí, Coahuila, Mexico

Occurrences of Daubréelite

Geological Setting:Meteorites

Physical Properties of Daubréelite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Black
Streak:Black, brown
Hardness (Mohs):4½ - 5
Hardness (Vickers):VHN100=260 - 303 kg/mm2
Tenacity:Brittle
Cleavage:Distinct/Good
Fracture:Irregular/Uneven
Density (measured):3.81 g/cm3
Density (calculated):3.842 g/cm3

Crystallography of Daubréelite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m {F41/d 3 2/m}
Space Group Setting:Fd3m
Cell Parameters:a = 9.966Å
Unit Cell Volume:V 989.83 ų (Calculated from Unit Cell)
Z:8
Morphology:Massive, scaly to platy in troilite and kamacite

Chemical Properties of Daubréelite

Formula:
Fe
2+
 
Cr
3+
2
S
 
4
Essential elements:Cr, Fe, S
All elements listed in formula:Cr, Fe, S

Relationship of Daubréelite to other Species

Member of:Linnaeite Group > Thiospinel Group
Other Members of Group:

- +
Bornhardtite
Co
2+
 
Co
3+
2
Se
 
4
Cadmoindite
CdIn
 
2
S
 
4
Carrollite
Cu(Co,Ni)
 
2
S
 
4
Cuproiridsite
(Cu,Fe)Ir
 
2
S
 
4
Cuprorhodsite
(Cu,Fe)Rh
 
2
S
 
4
Ferrorhodsite
(Fe,Cu)(Rh,Ir,Pt)
 
2
S
 
4
Fletcherite
Cu(Ni,Co)
 
2
S
 
4
Florensovite
(Cu,Zn)Cr
 
1.5
Sb
 
0.5
S
 
4
Greigite
Fe
2+
 
Fe
3+
2
S
 
4
Indite
FeIn
 
2
S
 
4
Kalininite
ZnCr
 
2
S
 
4
Linnaeite
Co
2+
 
Co
3+
2
S
 
4
Malanite
Cu(Pt
3+
 
,Ir
3+
 
)
 
2
S
 
4
Polydymite
Ni
2+
 
Ni
3+
2
S
 
4
Siegenite
CoNi
 
2
S
 
4
 -NiCo
 
2
S
 
4
Trüstedtite
Ni
 
3
Se
 
4
Tyrrellite
Cu(Co
3+
 
,Ni
3+
 
)
 
2
Se
 
4
Violarite
Fe
2+
 
Ni
3+
2
S
 
4
Xingzhongite
(Pb,Cu,Fe)(Ir,Pt,Rh)
 
2
S
 
4
Common Associates:
TroiliteKamacite
Related Minerals - Nickel-Strunz Grouping):

- +
2.DA.05Bornhardtite
Co
2+
 
Co
3+
2
Se
 
4
2.DA.05Carrollite
Cu(Co,Ni)
 
2
S
 
4
2.DA.05Cuproiridsite
(Cu,Fe)Ir
 
2
S
 
4
2.DA.05Cuprorhodsite
(Cu,Fe)Rh
 
2
S
 
4
2.DA.05Fletcherite
Cu(Ni,Co)
 
2
S
 
4
2.DA.05Florensovite
(Cu,Zn)Cr
 
1.5
Sb
 
0.5
S
 
4
2.DA.05Greigite
Fe
2+
 
Fe
3+
2
S
 
4
2.DA.05Indite
FeIn
 
2
S
 
4
2.DA.05Kalininite
ZnCr
 
2
S
 
4
2.DA.05Linnaeite
Co
2+
 
Co
3+
2
S
 
4
2.DA.05Malanite
Cu(Pt
3+
 
,Ir
3+
 
)
 
2
S
 
4
2.DA.05Polydymite
Ni
2+
 
Ni
3+
2
S
 
4
2.DA.05Siegenite
CoNi
 
2
S
 
4
 -NiCo
 
2
S
 
4
2.DA.05Trüstedtite
Ni
 
3
Se
 
4
2.DA.05Tyrrellite
Cu(Co
3+
 
,Ni
3+
 
)
 
2
Se
 
4
2.DA.05Violarite
Fe
2+
 
Ni
3+
2
S
 
4
2.DA.05Xingzhongite
(Pb,Cu,Fe)(Ir,Pt,Rh)
 
2
S
 
4
2.DA.05Ferrorhodsite
(Fe,Cu)(Rh,Ir,Pt)
 
2
S
 
4
2.DA.05Cadmoindite
CdIn
 
2
S
 
4
2.DA.05Cuprokalininite
CuCr
 
2
S
 
4
2.DA.10Rhodostannite
Cu
 
2
FeSn
 
3
S
 
8
2.DA.10Toyohaite
Ag
 
2
FeSn
 
3
S
 
8
2.DA.15Brezinaite
Cr
 
3
S
 
4
2.DA.15Heideite
(Fe,Cr)
 
1.15
(Ti,Fe)
 
2
S
 
4
2.DA.20Inaglyite
Cu
 
3
Pb(Ir,Pt)
 
8
S
 
16
2.DA.20Konderite
Cu
 
3
Pb(Rh,Pt,Ir)
 
8
S
 
16
2.DA.25Kingstonite
(Rh,Ir,Pt)
 
3
S
 
4
Related Minerals - Hey's Index Grouping:

- +
3.8.1Brezinaite
Cr
 
3
S
 
4
3.8.2Caswellsilverite
NaCrS
 
2
3.8.3Kalininite
ZnCr
 
2
S
 
4
3.8.5Heideite
(Fe,Cr)
 
1.15
(Ti,Fe)
 
2
S
 
4
3.8.6Molybdenite
MoS
 
2
3.8.7 Molybdenite-3R
MoS
 
2
3.8.8Jordisite
MoS
 
2
3.8.9Drysdallite
Mo(Se,S)
 
2
3.8.10Tungstenite
WS
 
2
3.8.12Alabandite
Mn
2+
 
S
3.8.13Hauerite
MnS
 
2
3.8.14Manganoshadlunite
(Mn,Pb,Cd)(Cu,Fe)
 
8
S
 
8

Other Names for Daubréelite

Synonyms:
Daubrelite
Other Languages:
German:Daubreélit
Daubrelit
Russian:Добрелит
Spanish:Daubreélita
Daubrelita

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 Daubréelite

Reference List:

- +
Smith (1876) American Journal of Science: 12: 109.

American Journal of Science (1878): 16: 270.

Lundqvist, D. (1943) Crystal structure of daubréelite. Arkiv för Mineralogi och Geologi, Stockholm: 17B, Paper 12, 31.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 265.

Internet Links for Daubréelite

Search Engines:
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    • External Links:
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  • Look for Daubréelite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Daubréelite details from Handbook of Mineralogy (PDF)
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  • Fine Minerals from Weinrich Minerals, Inc.
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