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Bobjonesite

This page kindly sponsored by Mineralogical Society of Arizona
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About BobjonesiteHide

Bob Jones
Formula:
(V4+O)(SO4) · 3H2O
Colour:
pale blue, blue-green
Lustre:
Vitreous
Hardness:
1
Specific Gravity:
2.28 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Robert (Bob) Jones [b. September 1, 1926), of Cave Creek, Arizona, USA for his contributions to the mineralogical community.

Life Member and Past President Mineralogical Society of Arizona.
Crusts and efflorescences. Hydrates rapidly on exposure to air, stable only in the driest atmospheres.


Classification of BobjonesiteHide

Approved
Approval Year:
2000
7.DB.25

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
B : With only medium-sized cations; insular octahedra and finite units

Pronounciation of BobjonesiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of BobjonesiteHide

Vitreous
Colour:
pale blue, blue-green
Streak:
pale blue
Hardness:
Cleavage:
None Observed
Density:
2.28 g/cm3 (Calculated)

Optical Data of BobjonesiteHide

Type:
Biaxial (+)
RI values:
nα = 1.555 nβ = 1.561 nγ = 1.574
2V:
Measured: 72° , Calculated: 69°
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Pleochroism:
Non-pleochroic

Chemical Properties of BobjonesiteHide

Formula:
(V4+O)(SO4) · 3H2O
IMA Formula:
V4+O(SO4) · 3H2O

Crystallography of BobjonesiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 7.394 Å, b = 7.4111 Å, c = 12.0597 Å
β = 106.55°
Ratio:
a:b:c = 0.998 : 1 : 1.627
Unit Cell V:
633.5 ų
Z:
4

Type Occurrence of BobjonesiteHide

Synonyms of BobjonesiteHide

Other Language Names for BobjonesiteHide

German:Bobjonesit
Simplified Chinese:单斜钒矾
Spanish:Bobjonesita
Traditional Chinese:單斜釩礬

Common AssociatesHide

Associated Minerals Based on Photo Data:
Karpovite1 photo of Bobjonesite associated with Karpovite on mindat.org.
Szomolnokite1 photo of Bobjonesite associated with Szomolnokite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DB.05AubertiteCuAl(SO4)2Cl · 14H2OTric. 1
7.DB.05Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
7.DB.05Svyazhinite(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2OTric.
7.DB.10KhademiteAl(SO4)F · 5H2OOrth. mmm (2/m 2/m 2/m)
7.DB.10RostiteAl(SO4)(OH) · 5H2OOrth. mmm (2/m 2/m 2/m)
7.DB.15JurbaniteAl(SO4)(OH) · 5H2OMon.
7.DB.20Minasragrite(V4+O)(SO4) · 5H2OMon. 2/m
7.DB.20Orthominasragrite(V4+O)(SO4) · 5H2OOrth. mm2 : Pmn21
7.DB.20Anorthominasragrite(V4+O)(SO4) · 5H2OTric. 1 : P1
7.DB.30AmarantiteFe3+2(SO4)2O · 7H2OTric. 1
7.DB.30HohmanniteFe3+2(SO4)2O · 8H2OTric. 1
7.DB.30MetahohmanniteFe3+2(SO4)2O · 4H2OTric. 1 : P1
7.DB.35AluminocopiapiteAl2/3Fe3+4(SO4)6(OH)2 · 20H2OTric. 1 : P1
7.DB.35CalciocopiapiteCaFe4(SO4)6(OH)2 · 10H2OTric. 1 : P1
7.DB.35CopiapiteFe2+Fe3+4(SO4)6(OH)2 · 20H2OTric. 1 : P1
7.DB.35CuprocopiapiteCuFe4(SO4)6(OH)2 · 20H2OTric. 1 : P1
7.DB.35FerricopiapiteFe5(SO4)6O(OH) · 20H2OTric. 1 : P1
7.DB.35MagnesiocopiapiteMgFe3+4(SO4)6(OH)2 · 20H2OTric. 1 : P1
7.DB.35ZincocopiapiteZnFe3+4(SO4)6(OH)2 · 18H2OTric.

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 BobjonesiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Schindler, M., F.C. Hawthorne, D.M.C. Huminicki, P. Haynes, J.D. Grice & H.T. Evans (2003): Bobjonesite, V4+O(SO4)(H2O)3, a new mineral species from Temple Mountain, Emery County, Utah, U.S.A.: Canadian Mineralogist: 41: 83-90.

Internet Links for BobjonesiteHide

Localities for BobjonesiteHide

ⓘ - 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.
Russia
 
  • Kamchatka Krai
    • Tolbachik volcano
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
Siidra, O. I., Vergasova, L. P., Kretser, Y. L., Polekhovsky, Y. S., Filatov, S. K., & Krivovichev, S. V. (2014). Unique thallium mineralization in the fumaroles of Tolbachik volcano, Kamchatka Peninsula, Russia. III. Evdokimovite, Tl4 (VO) 3 (SO4) 5 (H2O) 5. Mineralogical Magazine, 78(7), 1711-1724.
USA
 
  • Colorado
    • La Plata Co.
      • La Plata District (California District)
collected by Eckhard D. Stuart; PXRD Dr. Anthony R. Kampf
  • Utah
    • Emery Co.
      • San Rafael District (San Rafael Swell)
        • Temple Mountain
M. Schindler et al. (2003) Can. Mineral. 41, 83-90
Patrick Haynes
Mineral and/or Locality  
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