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Jonesite

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Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine), New Idria District, Diablo Range, San Benito Co., California, USA
© 1995-2001 Trinity Mineral Co.

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Formula:
Ba
 
4
(K,Na)
 
2
Ti
 
4
Al
 
2
[O|(SiO
 
4
)
 
2
|Si
 
3
O
 
9
]
 
2
 · 6H
 
2
O
System:OrthorhombicHardness:3 - 4
This page provides mineralogical data about Jonesite.

Classification of Jonesite

IMA status:Approved
Strunz 8th edition ID:8/E.03-10
Nickel-Strunz 10th (pending) edition ID:9.DJ.30

9 : SILICATES (Germanates)
D : Inosilicates
J : Inosilicates with 4-periodic double and triple chains
Dana 8th edition ID:61.2.2.1

61 : CYCLOSILICATES Six-Membered Rings
2 : Six-Membered Rings with Al substituted rings
Hey's CIM Ref.:16.14.6

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

Type Locality:Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine), New Idria District, Diablo Range, San Benito Co., California, USA
Year of Discovery:1977

Physical Properties of Jonesite

Hardness (Mohs):3 - 4

Crystallography of Jonesite

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

Optical Data of Jonesite

Type:Biaxial (+)
RI values: nα = 1.641 nβ = 1.660 nγ = 1.682
Maximum Birefringence:δ = 0.041

Chart 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 Jonesite

Formula:
Ba
 
4
(K,Na)
 
2
Ti
 
4
Al
 
2
[O|(SiO
 
4
)
 
2
|Si
 
3
O
 
9
]
 
2
 · 6H
 
2
O
Essential elements:Al, Ba, H, K, O, Si, Ti
All elements listed in formula:Al, Ba, H, K, Na, O, Si, Ti
Common Impurities:B,Fe,Nb,Mn,Mg,Ca,Sr

Relationship of Jonesite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DJ.05Narsarsukite
Na
 
2
(Ti,Fe)Si
 
4
(O,F)
 
11
9.DJ.10Laplandite-(Ce)
Na
 
4
CeTiPO
 
4
Si
 
7
O
 
18
·5H
 
2
O
9.DJ.15Caysichite-(Y)
Ca
 
2
Y
 
2
Si
 
4
O
 
10
(CO
 
3
)
 
3
·4H
 
2
O
9.DJ.20Seidite-(Ce)
Na
 
4
(Ce,Sr)
 
2
Ti[(O,OH,F)
 
5
|Si
 
8
O
 
18
(OH)]·5H
 
2
O
9.DJ.25Carlosturanite
(Mg,Fe,Ti)
 
21
(Si,Al)
 
12
O
 
28
(OH)
 
34
Related Minerals - Hey's Index Grouping:

- +
16.14.1Zorite
Na
 
2
Ti(Si,Al)
 
3
O
 
9
·nH
 
2
O
16.14.2Vinogradovite
(Na,Ca,K)
 
4
Ti
 
4
AlSi
 
6
O
 
23
(OH)·2H
 
2
O
16.14.3Rhönite
Ca
 
2
(Mg,Fe
2+
 
,Fe
3+
 
,Ti)
 
6
[O
 
2
|(Si,Al)
 
6
O
 
18
]
16.14.4Kaersutite
[Na][Ca
 
2
][Mg
 
4
Ti][O|OH|Al
 
2
Si
 
6
O
 
22
]
16.14.5Ferrokaersutite
[Na][Ca
 
2
][Fe
2+
4
Ti][O|OH|Al
 
2
Si
 
6
O
 
22
]
16.14.7Lourenswalsite
(K,Ba)
 
2
(Ti,Mg,Ca,Fe)
 
4
(Si,Al,Fe)
 
6
O
 
14
(OH)
 
12
16.14.8Labuntsovite-Mn
Na
 
4
K
 
4
(Ba,K)
 
2
Mn
2+
 
(Ti,Nb)
 
8
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
4
 · 10-12H
 
2
O
16.14.9Kimzeyite
Ca
 
3
(Zr,Ti)
 
2
[(Si,Al,Fe
3+
 
)O
 
4
]
 
3
16.14.10Ellenbergerite
Mg
 
6
Al
 
6
Ti[(OH)
 
6
|(HSiO
 
4
)
 
4
|(SiO
 
4
)
 
4
]
16.14.11Carlosturanite
(Mg,Fe,Ti)
 
21
(Si,Al)
 
12
O
 
28
(OH)
 
34
16.14.12Eakerite
Ca
 
2
SnAl
 
2
Si
 
6
O
 
18
(OH)
 
2
·2H
 
2
O
16.14.13Plumalsite
Pb
 
4
Al
 
2
(SiO
 
3
)
 
7
16.14.14Wickenburgite
CaPb
 
3
Al
 
2
Si
 
10
O
 
24
(OH)
 
6
16.14.15Maricopaite
Pb
 
7
Ca
 
2
(Si,Al)
 
48
O
 
100
·32H
 
2
O
16.14.16Epidote-(Pb)
{CaPb}{Al
 
3
}[O|OH|SiO
 
4
|Si
 
2
O
 
7
]
16.14.17Burckhardtite
Pb
 
2
(Fe,Mn)AlTeO
 
2
Si
 
3
O
 
10
(OH)
 
2
·H
 
2
O
16.14.18Mathewrogersite
Pb
 
7
(Fe
2+
 
,Cu)Al
 
3
Ge[(OH,H
 
2
O)
 
6
|(Si
 
3
O
 
9
)
 
4
]

Other Names for Jonesite

Synonyms:
IMA1976-040
Other Languages:
German:Jonesit
Russian:Джонесит
Spanish:Jonesita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Jonesite

Reference List:Wise, W.S. and Pabst, A. (1977) Jonesite: a new mineral from the benitoite gem mine, San Benito County, California. Mineralogical Record: 8: 455-456.

Internet Links for Jonesite

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  • Raman and XRD data at RRUFF project
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  • Jonesite details from Handbook of Mineralogy (PDF)
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    Localities for Jonesite

    Hide Locality List
    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    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
      • Northern Slanské Mts
    		Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
    USA
     
    • California
      • San Benito Co.
        • Diablo Range
          • New Idria District
    		Wise, W.S. & Pabst, A. (1977): Jonesite a new mineral from the Benitoite Gem mine, San Benito County, California. Mineralogical Record 8, 453-456
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Oct 2009 11:36:15