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Fresnoite

Big Photo

Junnila mine, New Idria District, San Benito Co., California, USA
© Rob Lavinsky

Show Fresnoite Photos (9)
Formula:
Ba
 
2
Ti[O|Si
 
2
O
 
7
]
System:TetragonalHardness:3 - 4
This page provides mineralogical data about Fresnoite.

Classification of Fresnoite

IMA status:Approved
Strunz 8th edition ID:8/C.14-10
Nickel-Strunz 10th (pending) edition ID:9.BE.15

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
Dana 8th edition ID:55.4.2.1

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
4 : Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination
Hey's CIM Ref.:14.9.11

14 : Silicates not Containing Aluminum
9 : Silicates of Ti
mindat.org URL:http://www.mindat.org/min-1607.html
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Type Occurrence of Fresnoite

Type Locality:Esquire No. 7 claim, Big Creek, Fresno Co., California, USA
Year of Discovery:1965

Physical Properties of Fresnoite

Hardness (Mohs):3 - 4

Crystallography of Fresnoite

Crystal System:Tetragonal
Cell Parameters:a = 8.52Å, c = 5.21Å
Ratio:a:c = 1 : 0.612
Unit Cell Volume:V 378.20 ų (Calculated from Unit Cell)

Optical Data of Fresnoite

Type:Uniaxial (-)
RI values: nω = 1.775 nε = 1.765
Maximum Birefringence:δ = 0.010

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High

Chemical Properties of Fresnoite

Formula:
Ba
 
2
Ti[O|Si
 
2
O
 
7
]
Essential elements:Ba, O, Si, Ti
All elements listed in formula:Ba, O, Si, Ti
Common Impurities:Al,Fe,Mn,Mg,Ca,Sr,K

Relationship of Fresnoite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.BE.02Wadsleyite
(Mg,Fe
2+
 
)
 
2
[SiO
 
4
]
9.BE.05Hennomartinite
SrMn
3+
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.05Lawsonite
CaAl
 
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.05Noelbensonite
BaMn
3+
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.05Itoigawaite
SrAl
 
2
[(OH)
 
2
|Si
 
2
O
 
7
] · H
 
2
O
9.BE.07Ilvaite
CaFe
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.07Manganilvaite
Ca(Mn
2+
 
,Fe
2+
 
)
 
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.10Suolunite
Ca
 
2
[H
 
2
Si
 
2
O
 
7
] · H
 
2
O
9.BE.12Jaffeite
Ca
 
6
[(OH)
 
6
|Si
 
2
O
 
7
]
9.BE.17Baghdadite
Ca
 
3
(Zr,Ti)[O
 
2
|Si
 
2
O
 
7
]
9.BE.17Burpalite
Na
 
2
CaZr[F
 
2
|Si
 
2
O
 
7
]
9.BE.17Cuspidine
Ca
 
4
[(F,OH)
 
2
|Si
 
2
O
 
7
]
9.BE.17Hiortdahlite
(Ca,Na)
 
3
(Zr,Ti)Si
 
2
O
 
7
(O,OH,F)
 
2
9.BE.17Janhaugite
(Na,Ca)
 
3
(Mn,Fe)
 
3
(Ti,Zr,Nb)
 
2
Si
 
4
O
 
15
(OH,F,O)
 
3
9.BE.17Låvenite
(Na,Ca)
 
2
(Mn
2+
 
,Fe
2+
 
)(Zr,Ti)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Niocalite
(Ca,Nb)
 
4
[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Normandite
NaCa(Mn,Fe)(Ti,Nb,Zr)[(O,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Wöhlerite
NaCa
 
2
(Zr,Nb)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.17Hiortdahlite I
(Na
 
3
Ca)Ca
 
8
Zr
 
2
(M+++)
 
2
(Si
 
2
O
 
7
)
 
4
(O
 
3
F
 
5
)
9.BE.17IMA2005-005a
Na
 
2
Ca
 
4
(Nb,Zr)
 
2
[(O,F)
 
2
|Si
 
2
O
 
7
]
 
2
9.BE.20Mosandrite
(Ca,Na,Ce)
 
12
(Ti,Zr)
 
2
[F
 
4
|(OH)
 
6
|SiO
 
4
|(Si
 
2
O
 
7
)
 
3
]
9.BE.20Nacareniobsite-(Ce)
Na
 
3
Ca
 
3
(Ce,La,Nd)Nb[F
 
3
|O|(Si
 
2
O
 
7
)
 
2
]
9.BE.20Rinkite
Na(Na,Ca)
 
2
(Ca,Ce)
 
4
Ti[F
 
2
|(O,F)
 
2
|(Si
 
2
O
 
7
)
 
2
]
9.BE.22Götzenite
Na
 
2
Ca
 
5
Ti[F
 
4
|(Si
 
2
O
 
7
)
 
2
]
9.BE.22Hainite
Na
 
4
Ca
 
8
(Ti,Zr,Mn)
 
3
[F
 
4
|(Si
 
2
O
 
7
)
 
2
]
 
2
9.BE.22Rosenbuschite
(Ca,Na)
 
3
(Zr,Ti)[O|F|Si
 
2
O
 
7
]
9.BE.22Kochite
(Na,Ca)
 
3
Ca
 
2
(Mn,Ca)ZrTi[(F,O)
 
4
|(Si
 
2
O
 
7
)
 
2
]
9.BE.23Dovyrenite
Ca
 
6
Zr(Si
 
2
O
 
7
)
 
2
(OH)
 
4
9.BE.25Barytolamprophyllite
(Ba,Na)
 
2
(Na,Ti,Fe
3+
 
)
 
4
Ti
 
2
[O|(OH,F)|Si
 
2
O
 
7
]
 
2
9.BE.25Ericssonite
BaMn
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.25Lamprophyllite
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
[O|(O,OH,F)|Si
 
2
O
 
7
]
 
2
9.BE.25Orthoericssonite
BaMn
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
9.BE.25Seidozerite
Na
 
8
Zr
 
3
Ti
 
3
Mn
2+
2
[O|F|Si
 
2
O
 
7
]
 
4
9.BE.25Nabalamprophyllite
Na
 
3
(Ba,Na)
 
2
Ti
 
3
[O|(OH,F)|Si
 
2
O
 
7
]
 
2
9.BE.25Grenmarite
(Zr,Mn)
 
2
(Zr,Ti)(Mn,Na)(Na,Ca)
 
4
(Si
 
2
O
 
7
)
 
2
(O,F)
 
4
9.BE.27Murmanite
Na
 
2
(Ti,Nb)
 
2
Si
 
2
O
 
9
·nH
 
2
O
9.BE.30Epistolite
Na
 
2
(Nb,Ti)
 
2
[O
 
2
|Si
 
2
O
 
7
] · nH
 
2
O
9.BE.32Lomonosovite
Na
 
5
Ti
 
2
[O
 
2
|PO
 
4
|Si
 
2
O
 
7
]
9.BE.35Vuonnemite
Na
 
11
Ti
4+
 
Nb
 
2
(Si
 
2
O
 
7
)
 
2
(PO
 
4
)
 
2
O
 
3
(F,OH)
9.BE.37Sobolevite
Na
 
12
Ca(NaCaMn)Ti
 
2
(Si
 
2
O
 
7
)
 
2
(PO
 
4
)
 
4
O
 
3
F
 
3
9.BE.40Innelite
Na
 
2
(Ba,K)
 
4
(Mg,Ca,Fe)Ti
 
3
Si
 
4
O
 
18
(OH,F)
 
1.5
SO
 
4
9.BE.40Phosphoinnelite
Ba
 
4
Na
 
3
Ti
 
3
[(O,F)
 
3
|(PO
 
4
,SO
 
4
)
 
2
|Si
 
4
O
 
14
]
9.BE.42Yoshimuraite
Ba
 
2
Mn
 
2
TiOSi
 
2
O
 
7
(PO
 
4
)(OH)
9.BE.45Quadruphite
Na
 
14
Ca
 
2
Ti
 
4
[O
 
2
|F|(PO
 
4
)
 
2
|Si
 
2
O
 
7
]
 
2
9.BE.47Polyphite
Na
 
5
(Na
 
4
Ca
 
2
)Ti
 
2
(Si
 
2
O
 
7
)(PO
 
4
)
 
3
O
 
2
F
 
2
9.BE.50Bornemanite
BaNa
 
4
Ti
 
2
NbSi
 
4
O
 
17
(F,OH)·Na
 
3
PO
 
4
9.BE.50Shkatulkaite
Na
 
10
Mn
2+
 
Ti
 
3
Nb
 
3
[(OH)
 
2
|F|(Si
 
2
O
 
7
)
 
6
] · 12H
 
2
O
9.BE.50Shkatulkalite
9.BE.50Bykovaite
BaNa(Na,Ti)
 
4
[(OH,F)
 
2
|(Ti,Nb)
 
2
Si
 
4
O
 
14
(O,OH)
 
3
] · 3H
 
2
O
9.BE.55Bafertisite
Ba(Fe
3+
 
,Mn
2+
 
)
 
2
Ti[O|(O,OH)
 
2
|Si
 
2
O
 
7
]
9.BE.55Hejtmanite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Ti[O|(OH,F)
 
2
|Si
 
2
O
 
7
]
9.BE.55Nechelyustovite
(Ba,Na)
 
2
{(Na,Ti,Mn)
 
4
[(Ti,Nb)
 
2
(OH)
 
3
Si
 
4
O
 
14
](OH,O,F)
 
2
} · 3H
 
2
O
9.BE.60Delindeite
(Na,K)
 
2.7
(Ba,Ca)
 
4
(Ti,Fe,Al)
 
6
Si
 
8
O
 
26
(OH)
 
14
9.BE.65Bussenite
Na
 
2
Ba
 
2
FeTiSi
 
2
O
 
7
(CO
 
3
)(OH)
 
3
F
9.BE.67Jinshajiangite
(Na,Ca)(Ba,K)(Fe,Mn)
 
4
Ti
 
2
Si
 
4
O
 
16
(F,O,OH)
 
2-3
9.BE.67Perraultite
(Na,Ca)(Ba,K)(Mn,Fe)
 
4
(Ti,Nb)
 
2
Si
 
4
O
 
16
(OH,F,O)
 
3
9.BE.67Surkhobite
(Ba,K)
 
2
CaNaMn
 
8
Ti
 
4
(Si
 
2
O
 
7
)
 
4
O
 
4
(F,OH,O)
 
6
9.BE.70Karnasurtite-(Ce)
(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P)
 
2
O
 
7
(OH)
 
4
·3H
 
2
O
9.BE.70Perrierite-(Ce)
(Ce,Ca,Th)
 
4
(Mg,Fe
2+
 
)
 
2
(Ti,Fe
3+
 
)
 
3
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Strontiochevkinite
(Sr,La,Ce,Ca)
 
4
Fe
3+
 
(Ti,Zr)
 
2
Ti
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Chevkinite-(Ce)
(Ce,La,Ca,Na,Th)
 
4
(Fe
2+
 
,Mg)(Fe
3+
 
,Ti,Fe
2+
 
)
 
2
(Ti,Fe
3+
 
,Nb)
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Polyakovite-(Ce)
(Ce,Ca)
 
4
(Mg,Fe
2+
 
)(Cr
3+
 
,Fe
3+
 
)
 
2
(Ti,Nb)
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Rengeite
Sr
 
4
ZrTi
 
4
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Matsubaraite
Sr
 
4
Ti
 
5
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Dingdaohengite-(Ce)
Ce
 
4
Fe
2+
 
Ti
 
2
Ti
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Maoniupingite-(Ce)
(REE,Ca)
 
4
(Fe
3+
 
,Ti,Fe
2+
 
,[])(Ti,Fe
3+
 
,Fe
2+
 
,Nb)
 
4
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.70Perrierite-(La)
(La,Ce, Ca)
 
4
(Fe,Mn
2+
 
,Mg)(Ti,Fe)
 
4
[O
 
4
|Si
 
2
O
 
7
]
 
2
9.BE.72Fersmanite
(Ca,Na)
 
4
(Ti,Nb)
 
2
Si
 
2
O
 
11
(F,OH)
 
2
9.BE.75Belkovite
Ba
 
3
(Nb,Ti)
 
6
[O
 
6
|Si
 
2
O
 
7
]
 
2
9.BE.77Nasonite
Pb
 
6
Ca
 
4
[Cl
 
2
|(Si
 
2
O
 
7
)
 
3
]
9.BE.80Kentrolite
Pb
 
2
Mn
3+
2
[O
 
2
|Si
 
2
O
 
7
]
9.BE.80Melanotekite
Pb
 
2
Fe
3+
2
[O
 
2
|Si
 
2
O
 
7
]
9.BE.82Tilleyite
Ca
 
5
[(CO
 
3
)
 
2
|Si
 
2
O
 
7
]
9.BE.85Killalaite
Ca
 
3
[Si
 
2
O
 
7
] · 0.5H
 
2
O
9.BE.87Stavelotite-(La)
(La,Nd,Ca)
 
3
Mn
2+
 
Cu(Mn
3+
 
,Fe
3+
 
,Mn
4+
 
)
 
26
[O
 
5
|Si
 
2
O
 
7
]
 
6
9.BE.90Biraite-(Ce)
Ce
 
2
Fe
2+
 
[CO
 
3
|Si
 
2
O
 
7
]
Related Minerals - Hey's Index Grouping:
14.9.1Natisite
Na
 
2
Ti[O|SiO
 
4
]
14.9.2Lorenzenite
Na
 
2
Ti
 
2
[O
 
3
|Si
 
2
O
 
6
]
14.9.3Lintisite
LiNa
 
3
Ti
 
2
[O|Si
 
2
O
 
6
]
 
2
 · 2H
 
2
O
14.9.4Davanite
K
 
2
TiSi
 
6
O
 
15
14.9.5Kazakovite
Na
 
6
Ti[Si
 
6
O
 
16
(OH)
 
2
]
14.9.6Titanite
CaTi[O|SiO
 
4
]
14.9.7Ohmilite
Sr
 
3
(Ti,Fe
3+
 
)[(O,OH)|(Si
 
2
O
 
6
)
 
2
] · 2-3H
 
2
O
14.9.8Lamprophyllite
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
[O|(O,OH,F)|Si
 
2
O
 
7
]
 
2
14.9.9Benitoite
BaTi[Si
 
3
O
 
9
]
14.9.10Batisite
Na
 
2
BaTi
 
2
[O|Si
 
2
O
 
6
]
 
2
14.9.12Joaquinite-(Ce)
Ba
 
2
NaCe
 
2
FeTi
 
2
Si
 
8
O
 
26
(OH,F) · H
 
2
O
14.9.13Orthojoaquinite-(Ce)
Ba
 
2
NaCe
 
2
FeTi
 
2
Si
 
8
O
 
26
(O,OH) · H
 
2
O
14.9.14Strontiojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
2
·H
 
2
O
14.9.15Bario-orthojoaquinite
(Ba,Sr)
 
4
Fe
 
2
Ti
 
2
Si
 
8
O
 
26
·H
 
2
O
14.9.16Strontio-orthojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
2
·H
 
2
O
14.9.17Bafertisite
Ba(Fe
3+
 
,Mn
2+
 
)
 
2
Ti[O|(O,OH)
 
2
|Si
 
2
O
 
7
]
14.9.18Hejtmanite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Ti[O|(OH,F)
 
2
|Si
 
2
O
 
7
]
14.9.19Delindeite
(Na,K)
 
2.7
(Ba,Ca)
 
4
(Ti,Fe,Al)
 
6
Si
 
8
O
 
26
(OH)
 
14
14.9.20Barytolamprophyllite
(Ba,Na)
 
2
(Na,Ti,Fe
3+
 
)
 
4
Ti
 
2
[O|(OH,F)|Si
 
2
O
 
7
]
 
2
14.9.21Trimounsite-(Y)
Y
 
2
Ti
 
2
[O
 
5
|SiO
 
4
]
14.9.22Perrierite-(Ce)
(Ce,Ca,Th)
 
4
(Mg,Fe
2+
 
)
 
2
(Ti,Fe
3+
 
)
 
3
[O
 
4
|Si
 
2
O
 
7
]
 
2
14.9.23Chevkinite
(Ca,Ce,Th)
 
4
(Fe,Mn)
 
2
(Ti,Fe)
 
3
Si
 
4
O
 
22
14.9.24Strontiochevkinite
(Sr,La,Ce,Ca)
 
4
Fe
3+
 
(Ti,Zr)
 
2
Ti
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
14.9.25Tisinalite
Na
 
3
H
 
3
(Mn,Ca,Fe)TiSi
 
6
(O,OH)
 
18
·2H
 
2
O
14.9.26Neptunite
Na
 
2
KLi(Fe
2+
 
,Mn
2+
 
)
 
2
Ti
 
2
[Si
 
8
O
 
24
]
14.9.27Manganoneptunite
Na
 
2
KLi(Mn
2+
 
,Fe
2+
 
)
 
2
Ti
 
2
[Si
 
8
O
 
24
]
14.9.28Kupletskite
(K,Na)
 
3
(Mn,Fe)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
14.9.29Astrophyllite
(K,Na)
 
3
(Fe,Mn)
 
7
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
7
14.9.30Hydroastrophyllite
(H
 
3
O,K,Ca)
 
3
(Fe,Mn)
 
5-65
Ti
 
2
Si
 
8
(O,OH)
 
31
14.9.31Magnesioastrophyllite
(Na,K)
 
4
Mg
 
2
(Fe,Fe,Mn)
 
5
Ti
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
14.9.32Baratovite
KCa
 
7
(Ti,Zr)
 
2
Li
 
3
Si
 
12
O
 
36
F
 
2
14.9.34Aenigmatite
Na
 
2
Fe
2+
5
TiO
 
2
]Si
 
6
O
 
18
]
14.9.35Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
[(Si,Fe
3+
 
,Fe
2+
 
)O
 
4
]
 
3
14.9.36Tinaksite
K
 
2
Na(Ca,Mn
2+
 
)
 
2
Ti[O|Si
 
7
O
 
18
(OH)]
14.9.37Janhaugite
(Na,Ca)
 
3
(Mn,Fe)
 
3
(Ti,Zr,Nb)
 
2
Si
 
4
O
 
15
(OH,F,O)
 
3
14.9.38Koashvite
Na
 
6
(Ca,Mn)(Ti,Fe)Si
 
6
O
 
18
·H
 
2
O

Other Names for Fresnoite

Synonyms:
IMA1964-012
German names:
Fresnoit
Russian names:
Фресноит
Spanish names:
Fresnoita

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 Fresnoite

Reference List:American Mineralogist (1965): 50: 314-340.

Moore, Paul B. & S.J. Louisnathan (1967), Fresnoite: unusual titanium coordination: Science: 156: 1361-1362.

Moore, Paul B. & S.J. Louisnathan (1969), The crystal structure of fresnoite, Ba2(TiO)Si2O7: Zeitschrift für Kristallographie: 130: 438-448.

Farges, F. (1996) Coordination of Ti in crystalline and glassy fresnoites: a high resolution XANES spectroscopy study at the Ti K-edge. Journal of Non-Crystalline Solids: 204: 53-64.

Internet Links for Fresnoite

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  • Look for Fresnoite on Wikipedia
  • Look for Fresnoite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Fresnoite in the Natural History Museum (London) online catalogue
  • Fresnoite details from Handbook of Mineralogy (PDF)
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    Localities for Fresnoite

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    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.
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    (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.
    Canada
     
    • Yukon Territory
      • Watson Lake Mining District
        • Itsy Mts.
          • MacMillian Pass
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Daun
          • Üdersdorf
    		Hentschel, G., Die Minerale der Üdersdorfer Lava, Lapis, Weise Verlag, München, 11/1989
        • Hillesheim
    		Hentschel, G., Die Lavaströme der Graulai: eine neue Fundstelle in der Westeifel, Lapis, Weise Verlag München, 09/1993
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    		[World of Stones 12:49]
    USA
     
    • California
      • Fresno Co.
        • Big Creek
    		[Amer.Min.(1965) 50, 314-340; MinRec 33:161]
        • Rush Creek
    		[MinRec 33:163]
      • Humboldt Co.
        • Orick
      • Mariposa Co.
        • Incline
    		[MinRec 30:414]
      • San Benito Co.
        • New Idria District
          • Clear Creek area
    No reference listed
    www.benitoitemine.com
      • Tulare Co.
        • Chickencoop Canyon
    Mineral and/or Locality
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    Copyright © Jolyon & Ida Ralph 1993-2008. 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. Mineral Specimens available here.