Petr Hykš:
Rutile structure in agate (zoom 200x)
Petr Hykš:
Manganese structure in agate ? (zoom 200x)
Petr Hykš:
Manganese structure in agate ? (zoom 200x)
Petr Hykš:
Manganese structure in agate ? (zoom 200x)
Petr Hykš:
Amethyst
Petr Hykš:
1604271317561100376421
Petr Hykš:
1604271320091100508984
Petr Hykš:
1604271320551100555671
Petr Hykš:
1604271321121100572734
Petr Hykš:
1604271323581100738140
Petr Hykš:
1604271325591100859390
Petr Hykš:
Possible jasper inclusions
Petr Hykš:
1604271329231101063375
Petr Hykš:
1604271329421101082203
Petr Hykš:
1604271331571101217421
Petr Hykš:
Possible jasper inclusions
Petr Hykš:
Possible jasper inclusions
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
Possible jasper inclusions (zoom 200x)
Petr Hykš:
1604271351581102418031
Petr Hykš:
1604271353041102484015
Petr Hykš:
1604271353131102493078
Petr Hykš:
1604271354561102596750
