Petr Hykš:
Opal as found
Petr Hykš:
Opal
Petr Hykš:
Opal (wet)
Petr Hykš:
Opal & chalcedony (wet)
Petr Hykš:
Opal
Petr Hykš:
Opal (wet)
Petr Hykš:
Opal
Petr Hykš:
Opal
Petr Hykš:
Dendritic opal (wet)
Petr Hykš:
Opal
Petr Hykš:
Opal
Petr Hykš:
Dendritic opal & chalcedony
Petr Hykš:
Opal
Petr Hykš:
Opal
Petr Hykš:
Dendritic opal
Petr Hykš:
Opal
Petr Hykš:
Manganese dendrite crystal in opal (micro-capture, 30x)
Petr Hykš:
Searching for opal
Petr Hykš:
Opal & chalcedony
Petr Hykš:
Opal in quartz coated with chalcedony (wet)
Petr Hykš:
Opal
Petr Hykš:
Pale blue opal (wet)
Petr Hykš:
Opal (wet)
Petr Hykš:
Dark green opal (wet)
Petr Hykš:
Dark green opal (wet)