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Jonesite

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Formula:
Ba4(K,Na)2Ti4Al2(Si3O9)2(SiO4)4O2 · 6H2O
Colour:
Colorless
Hardness:
3 - 4
Specific Gravity:
3.25
Crystal System:
Orthorhombic
Name:
Named in honor of Francis Tucker Jones (1905 - 1993), Research Chemical Microscopist at Berkeley, California, USA, who discovered the mineral.
This page provides mineralogical data about Jonesite.


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Classification of JonesiteHide

Approved
First Published:
1977
9.DJ.30

9 : SILICATES (Germanates)
D : Inosilicates
J : Inosilicates with 4-periodic double and triple chains
61.2.2.1

61 : CYCLOSILICATES Six-Membered Rings
2 : Six-Membered Rings with Al substituted rings
16.14.6

16 : Silicates Containing Aluminum and other Metals
14 : Aluminosilicates of Ti, Zr, Sn and Pb

Physical Properties of JonesiteHide

Colour:
Colorless
Hardness:
3 - 4 on Mohs scale
Cleavage:
Distinct/Good
{010}
Density:
3.25 g/cm3 (Measured)    3.239 g/cm3 (Calculated)

Optical Data of JonesiteHide

Type:
Biaxial (+)
RI values:
nα = 1.641 nβ = 1.660 nγ = 1.682
Max Birefringence:
δ = 0.041
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemical Properties of JonesiteHide

Formula:
Ba4(K,Na)2Ti4Al2(Si3O9)2(SiO4)4O2 · 6H2O
IMA Formula:
KBa2Ti2(Si5Al)O18 · nH2O
Common Impurities:
B,Fe,Nb,Mn,Mg,Ca,Sr

Crystallography of JonesiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 13.73 Å, b = 25.9 Å, c = 10.6 Å
Ratio:
a:b:c = 0.53 : 1 : 0.409
Unit Cell V:
3,769.43 ų (Calculated from Unit Cell)

Type Occurrence of JonesiteHide

General Appearance of Type Material:
Rosettes of bladed crystals
Place of Conservation of Type Material:
University of California, Santa Barbara, California, 7325.
American Museum of Natural History, New York, New York, USA.
Reference:
Wise, W.S., Pabst, A., Hinthorne, J.R. (1977) Jonesite a new mineral from the Benitoite Gem mine, San Benito County, California. The Mineralogical Record: 8: 453-456.

Synonyms of JonesiteHide

Other Language Names for JonesiteHide

German:Jonesit
Spanish:Jonesita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Neptunite2 photos of Jonesite associated with Neptunite on mindat.org.
Benitoite1 photo of Jonesite associated with Benitoite on mindat.org.
Crossite1 photo of Jonesite associated with Crossite on mindat.org.
Natrolite1 photo of Jonesite associated with Natrolite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DJ.05NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2Tet.
9.DJ.10Laplandite-(Ce)Na4CeTiPO4Si7O18 · 5H2O
9.DJ.15Caysichite-(Y)Ca2Y2Si4O10(CO3)3 · 4H2OOrth. mm2
9.DJ.20Seidite-(Ce)Na4(Ce,Sr)2Ti[(O,OH,F)5|Si8O18(OH)] · 5H2OMon.
9.DJ.25Carlosturanite(Mg,Fe,Ti)21(Si,Al)12O28(OH)34•H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.14.1ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
16.14.2VinogradoviteNa4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3Mon. 2/m : B2/b
16.14.3RhöniteCa2(Mg,Fe2+,Fe3+,Ti)6[O2|(Si,Al)6O18]Tric. 1 : P1
16.14.4Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2 Mon.
16.14.5Ferro-kaersutite{Na}{Ca2}{Fe2+3AlTi}(Al2Si6O22)O2Mon.
16.14.7Lourenswalsite(K,Ba)2(Ti,Mg,Ca,Fe)4(Si,Al,Fe)6O14(OH)12Hex.
16.14.8Labuntsovite-MnNa4K4(Ba,K)2Mn2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10-12H2OMon.
16.14.9KimzeyiteCa3(Zr,Ti)2((Si,Al,Fe3+)O4)3Iso.
16.14.10EllenbergeriteMg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10Hex.
16.14.11Carlosturanite(Mg,Fe,Ti)21(Si,Al)12O28(OH)34•H2OMon.
16.14.12EakeriteCa2SnAl2Si6O18(OH)2 · 2H2OMon.
16.14.13PlumalsitePb4Al2(SiO3)7
16.14.14WickenburgiteCaPb3Al2Si10O24(OH)6Trig. 3m : P3 1c
16.14.15MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
16.14.16Hancockite{CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)Mon.
16.14.17BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6Trig. 3m (3 2/m) : P3 1m
16.14.18MathewrogersitePb7FeAl3GeSi12O36(OH,H2O)6Trig.

Fluorescence of JonesiteHide

Orange yellow in SW; weak orange yellow in LW

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 JonesiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Wise, W.S., Pabst, A. (1977) Jonesite: a new mineral from the benitoite gem mine, San Benito County, California. Mineralogical Record: 8: 455-456.
Krivovichev, S.V., Armbruster, T. (2004) The crystal structure of jonesite, Ba2(K,Na)[Ti2(Si5Al)O18(H2O)](H2O)n: a first example of titanosilicate with porous double layers. American Mineralogist: 89: 314-318.

Internet Links for JonesiteHide

Localities for JonesiteHide

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.
Atlantic Ocean
 
  • Mid-Atlantic Ridge complex
Gablina, I.F., Semkova, T.A., Stepanova, T.V., and Gor'kova, N.V. (2006): Lithology and Mineral Resources 41(1), 27-44.
Slovakia
 
  • Prešov Region
    • Vranov nad Topľou Co.
Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
USA (TL)
 
  • California
    • San Benito Co.
      • Diablo Range
        • New Idria District
          • San Benito River headwaters area
            • Dallas Gem Mine area
Wise, W.S & Gill, R.H. (1977): Minerals of the Benitoite Gem mine. The Mineralogical Record 8, 442-452; Wise, W.S. & Pabst, A. (1977): Jonesite a new mineral from the Benitoite Gem mine, San Benito County, California. The Mineralogical Record 8, 453-456; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 472.
Mineral and/or Locality  
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