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Daomanite

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Formula:
CuPtAsS
 
2
System:OrthorhombicColour:Steel gray with yellow ...
Lustre:MetallicHardness:3½
Name:From the last syllables of its discovery localities: SanDAO and TieMA villages.
This page provides mineralogical data about Daomanite.

Classification of Daomanite

IMA status:Approved
Strunz 8th edition ID:2/D.06-30
Nickel-Strunz 10th (pending) edition ID:2.LA.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb
Dana 8th edition ID:2.5.7.1

2 : SULFIDES
5 : AmBnXp, with (m+n):p = 3:2
Hey's CIM Ref.:3.12.53

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
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Type Occurrence of Daomanite

Co-type Localities:Sandao village (Tao District), Fengning Co., Chengde Prefecture, Hebei Province, China
Tiema village (Ma District), Fengning Co., Chengde Prefecture, Hebei Province, China
Year of Discovery:1974
Geological Setting of type material:Pyroxenite type platinum ores.

Physical Properties of Daomanite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Steel gray with yellow tint
Hardness (Mohs):3½
Hardness (Vickers):VHN10=169 - 175 kg/mm2
Tenacity:Brittle
Cleavage:Distinct/Good
Four sets (from best to least perfect) {100} {010} {001} {110}
Fracture:Irregular/Uneven, Step-Like
Density (calculated):7.06 g/cm3

Crystallography of Daomanite

Crystal System:Orthorhombic
Cell Parameters:a = 5.93Å, b = 16.23Å, c = 3.67Å
Ratio:a:b:c = 0.365 : 1 : 0.226
Unit Cell Volume:V 353.22 ų (Calculated from Unit Cell)
Z:4
Morphology:Tabular crystals to 0.3mm

Optical Data of Daomanite

Type:Anisotropic
Anisotropism:Strong
Colour in reflected light:Light greenish yellow
Pleochroism:Visible
Comments:Gold-yellow and grayish green

Chemical Properties of Daomanite

Formula:
CuPtAsS
 
2
Essential elements:As, Cu, Pt, S
All elements listed in formula:As, Cu, Pt, S

Relationship of Daomanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.LA.10Dervillite
Ag
 
2
AsS
 
2
2.LA.20Vaughanite
TlHgSb
 
4
S
 
7
2.LA.25Criddleite
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
2.LA.30Fettelite
[Ag
 
6
As
 
2
S
 
7
][Ag
 
10
HgAs
 
2
S
 
8
]
2.LA.35Chaméanite
(Cu,Fe)
 
4
As(Se,S)
 
4
2.LA.40Arcubisite
Ag
 
6
CuBiS
 
4
2.LA.45Mgriite
Cu
 
3
AsSe
 
3
2.LA.50Benleonardite
Ag
 
8
(Sb,As)Te
 
2
S
 
3
2.LA.55Tsnigriite
Ag
 
9
SbTe
 
3
(S,Se)
 
3
2.LA.60Borovskite
Pd
 
3
SbTe
 
4
2.LA.65Jonassonite
AuBi
 
5
S
 
4
Related Minerals - Hey's Index Grouping:

- +
3.12.1Seinäjokite
(Fe,Ni)(Sb,As)
 
2
3.12.2Laurite
RuS
 
2
3.12.3Ruthenarsenite
(Ru,Ni)As
3.12.4Anduoite
(Ru,Os)As
 
2
3.12.5Ruarsite
(Ru,Os)AsS
3.12.6Xingzhongite
(Pb,Cu,Fe)(Ir,Pt,Rh)
 
2
S
 
4
3.12.7Rhodplumsite
Rh
 
3
Pb
 
2
S
 
2
3.12.8Cuprorhodsite
(Cu,Fe)Rh
 
2
S
 
4
3.12.9Konderite
Cu
 
3
Pb(Rh,Pt,Ir)
 
8
S
 
16
3.12.10Bowieite
(Rh,Ir,Pt)
 
2
S
 
3
3.12.11Cherepanovite
RhAs
3.12.12Hollingworthite
(Rh,Pt,Pd)AsS
3.12.13Vysotskite
(Pd,Ni)S
3.12.14Vasilite
(Pd,Cu)
 
16
(S,Te)
 
7
3.12.15Palladseite
Pd
 
17
Se
 
15
3.12.16Oosterboschite
(Pd,Cu)
 
7
Se
 
5
3.12.17Telluropalladinite
Pd
 
9
Te
 
4
3.12.18Temagamite
Pd
 
3
HgTe
 
3
3.12.19Sopcheite
Ag
 
4
Pd
 
3
Te
 
4
3.12.20Michenerite
PdBiTe
3.12.21Kotulskite
Pd(Te,Bi)
 
1-2
3.12.22Telargpalite
(Pd,Ag)
 
3
(Te,Bi)
3.12.23Merenskyite
(Pd,Pt)(Te,Bi)
 
2
3.12.24Palladoarsenide
Pd
 
2
As
3.12.25Stillwaterite
Pd
 
8
As
 
3
3.12.26Atheneite
Pd
 
2
As
 
0.75
Hg
 
0.25
3.12.27Majakite
PdNiAs
3.12.28Palarstanide
Pd
 
8
(As,Sn)
 
3
3.12.29Arsenopalladinite
Pd
 
8
(As,Sb)
 
3
3.12.30Vincentite
Pd
 
3
As
3.12.31Palladobismutharsenide
Pd
 
2
(As,Bi)
3.12.32Stibiopalladinite
Pd
 
5
Sb
 
2
3.12.33Hexatestibiopanickelite
(Pd,Ni)(Sb,Te)
3.12.34Sudburyite
(Pd,Ni)Sb
3.12.35Testibiopalladite
PdTe(Sb,Te)
3.12.36Borovskite
Pd
 
3
SbTe
 
4
3.12.37Isomertieite
Pd
 
11
Sb
 
2
As
 
2
3.12.38Mertieite-I
Pd
 
11
(Sb,As)
 
4
3.12.39Mertieite-II
Pd
 
8
(Sb,As)
 
3
3.12.40Sobolevskite
PdBi
3.12.41Froodite
α-PdBi
 
2
3.12.42Polarite
Pd(Bi,Pb)
3.12.43Urvantsevite
Pd(Bi,Pb)
 
2
3.12.44Cooperite
PtS
3.12.45Braggite
(Pt,Pd,Ni)S
3.12.46Kharaelakhite
(Cu,Pt,Pb,Fe,Ni)
 
9
S
 
8
3.12.47Malanite
Cu(Pt
3+
 
,Ir
3+
 
)
 
2
S
 
4
3.12.48Moncheite
(Pt,Pd)(Te,Bi)
 
2
3.12.49Maslovite
PtBiTe
3.12.50Sperrylite
PtAs
 
2
3.12.51Platarsite
(Pt,Rh,Ru)AsS
3.12.52Geversite
PtSb
 
2
3.12.54Genkinite
(Pt,Pd,Rh)
 
4
Sb
 
3
3.12.55Stumpflite
Pt(Sb,Bi)
3.12.56Insizwaite
Pt(Bi,Sb)
 
2
3.12.57Erlichmanite
OsS
 
2
3.12.58Omeiite
(Os,Ru)As
 
2
3.12.59Osarsite
(Os,Ru)AsS
3.12.60Kashinite
(Ir,Rh)
 
2
S
 
3
3.12.61Inaglyite
Cu
 
3
Pb(Ir,Pt)
 
8
S
 
16
3.12.62Cuproiridsite
(Cu,Fe)Ir
 
2
S
 
4
3.12.63Iridarsenite
(Ir,Ru)As
 
2
3.12.64Irarsite
(Ir,Ru,Rh,Pt)AsS
3.12.65Tolovkite
IrSbS

Other Names for Daomanite

Other Languages:
German:Daomanit
Simplified Chinese:道马矿
硫砷铜铂矿
Spanish:Daomanita

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 Daomanite

Reference List:

- +
Yu Zuxiang, Lin Shujen, Chao Pao, Fang Chingsung, and Huang Chishun (1974): A preliminary study of some new minerals of the platinum-group and another associated new one in a platinum-bearing intrusion in a region of China. Acta Geologica Sinica 48(2), 202-218 (in Chinese with English abstract). - American Mineralogist (1975), 61, 184 (abstract).

Yu Zuxiang, Ding Kuishou, and Zhou Jianxiong (1978): Daomanite - A new platinum mineral. Acta Geologica Sinica 52(4), 320-325 (in Chinese with English abstract). - American Mineralogist (1979), 65, 408 (abstract).

Yu Zuxiang (1986): Some new minerals from platinum-bearing rocks in Yanshan and Tibet regions, China. Bulletin of the Institute of Geology, Chinese Academy of Sciences 15, 49-57.

Yu Zuxiang (2001): New data for daomanite. Acta Geologica Sinica 75(3), 396-399 (in Chinese with English abstract).

Yu Zuxiang (2001): New data for daomanite and hongshiite. Acta Geologica Sinica 75(4), 458-466 (in Chinese with English abstract).

Internet Links for Daomanite

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    • Localities for Daomanite

    Hide Locality List
    (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.
    China
     
    • Hebei Province
      • Chengde Prefecture
        • Fengning Co.
    		Yu Zuxiang, Lin Shujen, Chao Pao, Fang Chingsung, and Huang Chishun (1974): Acta Geologica Sinica 48(2), 202-218; Yu Zuxiang, Ding Kuishou, and Zhou Jianxiong (1978): Acta Geologica Sinica 52(4), 320-325; Yu Zuxiang (2001): Acta Geologica Sinica 75(3), 396-399.
    Yu Zuxiang, Lin Shujen, Chao Pao, Fang Chingsung, and Huang Chishun (1974): Acta Geologica Sinica 48(2), 202-218; Yu Zuxiang, Ding Kuishou, and Zhou Jianxiong (1978): Acta Geologica Sinica 52(4), 320-325; Yu Zuxiang (2001): Acta Geologica Sinica 75(3), 396-399
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Monche-Tundra
            • Monchegorsk
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