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Bamfordite

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About BamforditeHide

Formula:
Fe3+Mo2O6(OH)3 · H2O
Colour:
Apple-green
Lustre:
Vitreous, Earthy
Hardness:
2 - 3
Specific Gravity:
3.62
Crystal System:
Triclinic
Name:
After its locality.
This page provides mineralogical data about Bamfordite.


Classification of BamforditeHide

Approved
Approval Year:
1996
4.FK.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
K : Hydroxides with H2O +- (OH); chains of edge-sharing octahedra

Physical Properties of BamforditeHide

Vitreous, Earthy
Colour:
Apple-green
Streak:
greenish yellow
Hardness:
2 - 3 on Mohs scale
Cleavage:
Distinct/Good
(100)
Density:
3.62 g/cm3 (Measured)    

Optical Data of BamforditeHide

Type:
Biaxial (-)
RI values:
nα = 1.910 nβ = 2.030 nγ = 2.110
2V:
Measured: 90° , Calculated: 74°
Max Birefringence:
δ = 0.200
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v

Chemical Properties of BamforditeHide

Formula:
Fe3+Mo2O6(OH)3 · H2O

Crystallography of BamforditeHide

Crystal System:
Triclinic

Type Occurrence of BamforditeHide

General Appearance of Type Material:
Apple green with yellowish tint
Place of Conservation of Type Material:
Museum of Victoria
Geological Setting of Type Material:
Oxidation zone of greisen

Synonyms of BamforditeHide

Other Language Names for BamforditeHide

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 BamforditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Birch, William D.; Pring, Allan; McBriar, E. Maude; Gatehouse, Bryan M.; and McCammon, Catherine A. (1998): Bamfordite, Fe3+Mo2O6(OH)3.H2O, a new hydrated iron molybdenum oxyhydroxide from Queensland, Australia: Description and crystal chemistry: Am. Mineral. 83, 172-177.

Internet Links for BamforditeHide

Localities for BamforditeHide

ⓘ - 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.
Australia (TL)
 
  • Queensland
    • Mareeba Shire
      • Bamford
Birch, William D.; Pring, Allan; McBriar, E. Maude; Gatehouse, Bryan M.; and McCammon, Catherine A. (1998): Bamfordite, Fe3+Mo2O6(OH)3.H2O, a new hydrated iron molybdenum oxyhydroxide from Queensland, Australia: Description and crystal chemistry: Am. Mineral. 83, 172-177.
Mineral and/or Locality  
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