Green star quartz from Czech Republic
Jaspilite (banded iron formation) from Ukraine
Dark green siliceous rock from Sudetes (Poland)
Jasper from Sudetes (Poland)
Red jasper from Sudetes (Poland)
Metagabbro specimen from Sudetes (Poland)
Carnelian from Sudetes (Poland)
River agate from Bóbr (Beaver Rver) in Sudetes (Poland)
Metagabbro specimen from Sudetes (Poland)
Green flint from alluvial deposit in Sudetes (Poland)
Fossil wood from aluvial deposit in Sudetes (Poland)