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Blakeite

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William P. Blake
Formula:
Fe3+2[TeO3]3 (?)
Colour:
Brown or dark reddish brown; golden yellow to yellowish brown and brown in transmitted light.
Lustre:
Dull
Hardness:
2 - 3
Name:
Named by Clifford Frondel and Frederick H. Pough in 1944 in honor of William Phipps Blake (1 June 1826, New York City, New York, United States - 22 May 1910, Berkeley, California, United States) geologist, mining consultant, and educator.
This page provides mineralogical data about Blakeite.


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Classification of BlakeiteHide

Approved, 'Grandfathered' (first described prior to 1959), Questionable
First Published:
1944
4.JM.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
M : Tellurites without additional anions, with H2O
28.3.22

28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites

Physical Properties of BlakeiteHide

Colour:
Brown or dark reddish brown; golden yellow to yellowish brown and brown in transmitted light.
Streak:
Yellowish brown
Hardness:
2 - 3 on Mohs scale
Tenacity:
Fragile
Comment:
Greater than 3.1

Optical Data of BlakeiteHide

Type:
Isotropic

Chemical Properties of BlakeiteHide

Formula:
Fe3+2[TeO3]3 (?)
IMA Formula:
Fe3+2(Te4+O3)3 (?)

Crystallography of BlakeiteHide

Morphology:
Micro-crystalline crusts, massive.

Type Occurrence of BlakeiteHide

General Appearance of Type Material:
Massive; micro-crystalline crusts.
Geological Setting of Type Material:
Oxidized zone of Au-Te deposit.
Associated Minerals at Type Locality:

Other Language Names for BlakeiteHide

German:Blakeit
Spanish:Blakeita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Mackayite3 photos of Blakeite associated with Mackayite on mindat.org.
Pyrite1 photo of Blakeite associated with Pyrite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JM.05KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2OHex.
4.JM.05KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
4.JM.05ZemanniteMg0.5ZnFe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
4.JM.10EmmonsiteFe3+2(TeO3)3 · 2H2OTric. 1 : P1
4.JM.15GraemiteCu[TeO3] · H2OOrth. mmm (2/m 2/m 2/m) : Pmma
4.JM.20TeineiteCu2+(Te4+O3) · 2H2OOrth. mmm (2/m 2/m 2/m)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.3.1BalyakiniteCu(TeO3)Orth.
28.3.2RajiteCu(Te4+2O5)Mon. 2/m : P21/b
28.3.3GraemiteCu[TeO3] · H2OOrth. mmm (2/m 2/m 2/m) : Pmma
28.3.4TeineiteCu2+(Te4+O3) · 2H2OOrth. mmm (2/m 2/m 2/m)
28.3.5CesbroniteCu2+3Te6+O4(OH)4Orth.
28.3.6MroseiteCaTe4+(CO3)O2Orth. mmm (2/m 2/m 2/m) : Pbca
28.3.7QuetzalcoatliteZn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2yTrig. 3m (3 2/m) : P3m1
28.3.8ZemanniteMg0.5ZnFe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
28.3.9KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
28.3.10Denningite(Mn2+,Ca,Zn)Te4+2O5Tet.
28.3.11SpiroffiteMn2+2Te4+3O8Mon. 2/m : B2/b
28.3.12WinstanleyiteTiTe4+3O8Iso. m3 (2/m 3) : Ia3
28.3.13FairbankitePb(TeO3)Tric.
28.3.14PlumbotelluritePb(TeO3)Orth.
28.3.15Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
28.3.16SmirniteBi2Te4+O5Orth. mm2
28.3.17ChekhovichiteBi2Te4+4O11Mon. 2/m
28.3.18Cliffordite(UO2)Te4+3O7Iso. m3 (2/m 3) : Pa3
28.3.19Schmitterite(UO2)(TeO3)Orth.
28.3.20MoctezumitePb(UO2)(TeO3)2Mon.
28.3.21EmmonsiteFe3+2(TeO3)3 · 2H2OTric. 1 : P1
28.3.23MackayiteFe3+(Te4+2O5)(OH)Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
28.3.24PoughiteFe3+2(TeO3)2(SO4)(H2O)2 · H2OOrth.
28.3.25SonoraiteFe3+(TeO3)(OH) · H2OMon.
28.3.26RodalquilariteFe2(TeO2OH)3(TeO3)ClTric. 1 : P1
28.3.27EztlitePb2+2Fe3+3(Te4+ O3)3(SO4)O2ClMon.
28.3.28KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2OHex.

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 BlakeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Frondel, C., Pough, F.H. (1944) Two new tellurites of iron: mackayite and blakeite, with new data on emmonsite and durdenite. American Mineralogist: 29: 211-225.
Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 643.

Internet Links for BlakeiteHide

Localities for BlakeiteHide

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.
Mexico
 
  • Sonora
    • Mun. de Moctezuma
Lapis 2001(1), 11-40
USA
 
  • Nevada
    • Esmeralda Co.
      • Goldfield District
        • Goldfield
NBMG Spec. Pub. 31 Minerals of Nevada
NBMG Spec. Pub. 31 Minerals of Nevada
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 643.
Mineral and/or Locality  
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