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Daubréelite

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Auguste Daubree
Formula:
Fe2+Cr23+S4
System:
Isometric
Colour:
Black
Lustre:
Metallic
Hardness:
4½ - 5
Name:
Named after Professor Gabriel Auguste Daubrée (1814-1896) of Paris, who worked extensively with meteorites.

Classification of Daubréelite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
2/D.01-100
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
2.10.1.11

2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
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

Occurrences of Daubréelite

Geological Setting:
Meteorites

Physical Properties of Daubréelite

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:
3.81 g/cm3 (Measured)    3.842 g/cm3 (Calculated)

Crystallography of Daubréelite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
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:
Fe2+Cr23+S4
Essential elements:
All elements listed in formula:

Relationship of Daubréelite to other Species

Other Members of Group:
BornhardtiteCo2+Co23+Se4
CadmoinditeCdIn2S4
CarrolliteCu(Co,Ni)2S4
Cuproiridsite(Cu,Fe)Ir2S4
CuprokalininiteCuCr2S4
Cuprorhodsite(Cu,Fe)Rh2S4
Ferrorhodsite(Fe,Cu)(Rh,Ir,Pt)2S4
FletcheriteCu(Ni,Co)2S4
Florensovite(Cu,Zn)Cr1.5Sb0.5S4
GreigiteFe2+Fe23+S4
InditeFeIn2S4
KalininiteZnCr2S4
LinnaeiteCo2+Co23+S4
MalaniteCu(Pt3+,Ir3+)2S4
PolydymiteNi2+Ni23+S4
SiegeniteCoNi2S4
TrüstedtiteNi3Se4
TyrrelliteCu(Co3+,Ni3+)2Se4
ViolariteFe2+Ni23+S4
Xingzhongite(Pb,Cu,Fe)(Ir,Pt,Rh)2S4
Common Associates:
2.DA.05BornhardtiteCo2+Co23+Se4
2.DA.05CarrolliteCu(Co,Ni)2S4
2.DA.05Cuproiridsite(Cu,Fe)Ir2S4
2.DA.05Cuprorhodsite(Cu,Fe)Rh2S4
2.DA.05FletcheriteCu(Ni,Co)2S4
2.DA.05Florensovite(Cu,Zn)Cr1.5Sb0.5S4
2.DA.05GreigiteFe2+Fe23+S4
2.DA.05InditeFeIn2S4
2.DA.05KalininiteZnCr2S4
2.DA.05LinnaeiteCo2+Co23+S4
2.DA.05MalaniteCu(Pt3+,Ir3+)2S4
2.DA.05PolydymiteNi2+Ni23+S4
2.DA.05SiegeniteCoNi2S4
2.DA.05TrüstedtiteNi3Se4
2.DA.05TyrrelliteCu(Co3+,Ni3+)2Se4
2.DA.05ViolariteFe2+Ni23+S4
2.DA.05Xingzhongite(Pb,Cu,Fe)(Ir,Pt,Rh)2S4
2.DA.05Ferrorhodsite(Fe,Cu)(Rh,Ir,Pt)2S4
2.DA.05CadmoinditeCdIn2S4
2.DA.05CuprokalininiteCuCr2S4
2.DA.10RhodostanniteCu2FeSn3S8
2.DA.10ToyohaiteAg2FeSn3S8
2.DA.15BrezinaiteCr3S4
2.DA.15Heideite(Fe,Cr)1.15(Ti,Fe)2S4
2.DA.20InaglyiteCu3Pb(Ir,Pt)8S16
2.DA.20KonderiteCu3Pb(Rh,Pt,Ir)8S16
2.DA.25Kingstonite(Rh,Ir,Pt)3S4
3.8.1BrezinaiteCr3S4
3.8.2CaswellsilveriteNaCrS2
3.8.3KalininiteZnCr2S4
3.8.5Heideite(Fe,Cr)1.15(Ti,Fe)2S4
3.8.6MolybdeniteMoS2
3.8.7 Molybdenite-3RMoS2
3.8.8JordisiteMoS2
3.8.9DrysdalliteMo(Se,S)2
3.8.10TungsteniteWS2
3.8.12AlabanditeMnS
3.8.13HaueriteMnS2
3.8.14Manganoshadlunite(Mn,Pb,Cd)(Cu,Fe)8S8

Other Names for Daubréelite

Name in Other Languages:

Other Information

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 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

Localities for Daubréelite

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.
Mineral and/or Locality  
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