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Cristoballite, Tridymite
Cristoballite, Tridymite Bánov - Hrad, Czech Republic
Quartz (var. chalcedony)
Quartz (var. chalcedony) Bánov - Skalky II, Czech Republic
Opal, Quartz (var. chalcedony)
Opal, Quartz (var. chalcedony) Bánov - Skalky II, Czech Republic
Augite
Augite Starý Hrozenkov, Czech Republic
Cristoballite, Tridymite
Cristoballite, Tridymite Bánov - Hrad, Czech Republic
Cristoballite, Tridymite
Cristoballite, Tridymite Bánov - Hrad, Czech Republic
Augite
Augite Starý Hrozenkov, Czech Republic
Quartz (var. chalcedony)
Quartz (var. chalcedony) Bánov - Skalky II, Czech Republic
Quartz (var. chalcedony)
Quartz (var. chalcedony) Bánov - Skalky II, Czech Republic
Wavellite
Wavellite Čížová u Písku, Czech Republic
Agate
Agate Rožmitál u Broumova, Czech Republic
Moldavite
Moldavite Zatáčka, Czech Republic
Moldavite
Moldavite Slavče, Czech Republic
Moldavite
Moldavite Zatáčka, Czech Republic
Moldavite
Moldavite Zatáčka, Czech Republic
Moldavite
Moldavite Zatáčka, Czech Republic
Moldavite
Moldavite Chlum nad Malší, Czech Republic
Moldavite
Moldavite Besednice, Czech Republic
Paulingite-(Ca)
Paulingite-(Ca) Vinařice, Czech Republic
Paulingite-(Ca)
Paulingite-(Ca) Vinařice, Czech Republic
Paulingite-(Ca)
Paulingite-(Ca) Vinařice, Czech Republic
Schorl
Schorl Sušice, Czech Republic
Schorl
Schorl Sušice, Czech Republic
Agate
Agate Rio Grande do Sul, Brazil

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