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Coyoteite

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Formula:
NaFe3S5 · 2H2O
System:
Triclinic
Colour:
Black to pale brownish ...
Lustre:
Metallic
Hardness:
Name:
Named from type locality
This page provides mineralogical data about Coyoteite.

Classification of Coyoteite

Approved
2.FD.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
D : With O, OH, H2O
2.14.6.1

2 : SULFIDES
14 : Hydroxysulfides and Hydrated Sulfides
3.0.2

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

Year of Discovery:
1983
Geological Setting of Type Material:
Pegmatic "clots"

Physical Properties of Coyoteite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Black to pale brownish grey
Streak:
Black
Hardness (Mohs):
Cleavage:
Perfect
{111}
Density:
2.5 - 2.6 g/cm3 (Measured)    2.879 g/cm3 (Calculated)

Crystallography of Coyoteite

Crystal System:
Triclinic
Cell Parameters:
a = 7.4Å, b = 9.88Å, c = 6.44Å
α = 100.42°, β = 104.62°, γ = 81.49°
Ratio:
a:b:c = 0.749 : 1 : 0.652
Z:
2

Optical Data of Coyoteite

Type:
Anisotropic
Anisotropism:
Strong - gray to dull golden orange
Colour in reflected light:
pale brownish gray with a pink tint.
Internal Reflections:
None
Pleochroism:
Visible
Comments:
grayer to pinker

Chemical Properties of Coyoteite

Formula:
NaFe3S5 · 2H2O
Essential elements:
All elements listed in formula:

Relationship of Coyoteite to other Species

2.FD.UKI-2004-(OS:BiCuPb)PbCu4Bi4S2O16 (?)
2.FD.05KermesiteSb2S2O
2.FD.10Viaeneite(Fe,Pb)4S8O
2.FD.20ErditeNaFeS2 · 2H2O
2.FD.30Haapalaite(Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22
2.FD.30Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
2.FD.30Yushkinite(Mg,Al)V4+S2(OH)2
2.FD.35TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
2.FD.40WilhelmramsayiteCu3FeS3·2H2O
2.FD.45VyalsoviteFeCaAlS(OH)5
2.FD.50BazhenoviteCa8S2(S3)(S2O3)(OH)12 · 20H2O
3.0.1ErditeNaFeS2 · 2H2O
3.0.3ChvilevaiteNa(Cu,Fe,Zn)2S4
3.0.4RasvumiteKFe2S3
3.0.5BartoniteK6Fe20S26S
3.0.6MurunskiteK2(Cu,Fe)4S4

Other Names for Coyoteite

Name in Other Languages:
German:Coyoteit
Spanish:Coyoteita

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 Coyoteite

Reference List:
Erd, R.C. and G.K. Czamanske (1983): Orickite and coyoteite, two new sulfide minerals from Coyote Peak, Humboldt Co., California. Am. Mineral., 68, 245–254.


Internet Links for Coyoteite

Localities for Coyoteite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
USA
 
  • California
    • Humboldt Co.
      • Coastal Range
Erd, R.C. and G.K. Czamanske (1981) Orickite and coyoteite, two new sulfide minerals, American Mineralogist; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 67; American Mineralogist: (1983) 68: 245-254.
Mineral and/or Locality  
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