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Australia | |
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| |
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| |
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Austria | |
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| Meixner, H. (1958) |
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| Aufschluss 1972(SB), 52-55 |
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Brazil | |
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| Revista Brasileira de Geociências, vol.30 |
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| |
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| www.gemstone.org/gem-by-gem/english/fire.html |
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Canada | |
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| www.em.gov.bc.ca/cf/minfile |
|
Ecuador | Rocks&Min 51:11 |
| Rocks&Min 51:11 |
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Honduras | Rocks&Min 54:266 |
| Rocks&Min 54:266 |
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Hungary | |
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| |
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| |
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| |
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| Szakáll: Topographia Mineralogica Hungariae III. |
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| |
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| GEODA/2000, Own found.2006 |
|
Mexico | |
|
| Rob Lavinsky |
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| |
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| |
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| |
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Slovakia | |
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| Ďuďa R., 1996: Slovenské opály. Minerál,Brno, IV, 4, 254 - 258 |
|
| Pauliš,P.,Ďuďa,R.,2002: Nejzajímavejší mineralogická naletište Slovenska. Kuttna,K.Hora, 136p |
|
| Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590 |
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Turkey | |
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| |
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UK | |
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| J.Ralph collection |
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USA | |
- Oatman District (San Francisco District; Union Pass District)
- Union Pass District (Katherine District)
| Galbraith, F.W. & Brennan (1959), Minerals of AZ: 87. |
|
| MacFall, 1951. Gem Hunter's Guide, 1st ed. |
|
| MacFall, 1951. Gem Hunter's Guide, 1st ed. |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Minerals of Colorado (1997) E.B. Eckels |
|
| Dake, 1956. NW Gem Trails, 2nd ed. |
|
| Dake, 1956. NW Gem Trails, 2nd ed. |
|
| [var: Precious Fire Opal] |
|
| Mins. of NYC & Its Environs, NY Min. Club., Vol. 3 (1931), edited by J.G. Manchester; Canfield (1889). |
|
| Dake, 1956. NW Gem Trails, 2nd ed. |
|
| Extra Lapis - English No. 10 Opal |
|
| Dake, 1956. NW Gem Trails, 2nd ed. |
|
| Extra Lapis - English No. 10 Opal |