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Coyoteite

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About CoyoteiteHide

Formula:
NaFe3S5 · 2H2O
Colour:
Black to pale brownish grey
Lustre:
Metallic
Hardness:
Specific Gravity:
2.5 - 2.6
Crystal System:
Triclinic
Name:
Named from type locality
This page provides mineralogical data about Coyoteite.


Classification of CoyoteiteHide

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

Physical Properties of CoyoteiteHide

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

Optical Data of CoyoteiteHide

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 CoyoteiteHide

Formula:
NaFe3S5 · 2H2O

Crystallography of CoyoteiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 7.4 Å, b = 9.88 Å, c = 6.44 Å
α = 100.42°, β = 104.62°, γ = 81.49°
Ratio:
a:b:c = 0.749 : 1 : 0.652
Unit Cell V:
445.48 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of CoyoteiteHide

Geological Setting of Type Material:
Pegmatic "clots"

Synonyms of CoyoteiteHide

Other Language Names for CoyoteiteHide

German:Coyoteit
Spanish:Coyoteita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Bartonite2 photos of Coyoteite associated with Bartonite on mindat.org.
Erdite1 photo of Coyoteite associated with Erdite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.FD.UKI-2004-(OS:BiCuPb)PbCu4Bi4S2O16 (?)Tet.
2.FD.05KermesiteSb2S2OTric. 1 : P1
2.FD.10Viaeneite(Fe,Pb)4S8OMon.
2.FD.20ErditeNaFeS2 · 2H2OMon. 2/m : B2/b
2.FD.30Haapalaite(Fe2+,Ni)2(Mg,Fe2+)1.61S2(OH)3.22Hex.
2.FD.30Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6Hex.
2.FD.30Yushkinite(Mg,Al)V4+S2(OH)2Hex.
2.FD.35TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
2.FD.40WilhelmramsayiteCu3FeS3·2H2OOrth. mmm (2/m 2/m 2/m) : Pmmm
2.FD.45VyalsoviteFeCaAlS(OH)5Orth.
2.FD.50BazhenoviteCa8S2(S3)(S2O3)(OH)12 · 20H2OMon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.0.1ErditeNaFeS2 · 2H2OMon. 2/m : B2/b
3.0.3ChvilevaiteNa(Cu,Fe,Zn)2S4Trig. 3m : R3m
3.0.4RasvumiteKFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
3.0.5BartoniteK6Fe20S26STet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.0.6MurunskiteK2(Cu,Fe)4S4Tet.

Other InformationHide

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 CoyoteiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 CoyoteiteHide

Localities for CoyoteiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • 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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