To my big surprise, the wider Rotterdam area (Maasvlakte, Europoort, Botlek, Hoek van Holland, Maas Dykes) offers nice possibilities to find minerals. As the harbours are build with huge amounts of bolders and stones of different sizes and sources, one can do amazing finds.
Especially the Zirkon that I found is quite special and in good quality. As the localities are not always very accessible and the sites are not endlessly producing due to lack of natural sources, exact locations are not given. Most material originally comes from a few specific quaries in Norway, Germany and Belgium, in many cases the original location could be traced back via harbour authority and public archives. Amongst them are Quenast (B), Mayen Area (Vulkan Eifel, D; almost for sure Rothenberg!), Ourthe area (B), and Larvik (N). The Epidote originates from few totally different sources.
Sphene
Calcite 
Christoballite 
Epidote 
Epidote 
Calcite
Christoballite 
Chabasite 
Hematite FoV 3mm 
Aragonite 
Hematite FoV 5mm
Hematite
Hematite
Zirkon
Zirkon 
Zirkon
Molybdenite, Galena 
Zirkon
Epidote
Epidote 
Epidote
Zirkon
Zirkon
Zirkon
Zirkon
Epidote 
Epidote
Epidote
Biotite 
Biotite
Biotite
Zirkon
Zirkon
Zirkon
Molybdenite 
Zirkon
Epidote
Baryte 
Baryte
Hematite
Biotite 
Hematite 
Zirkon
Zirkon
Hematite 
Biotite 
Hematite 
Calcite
Calcite
Calcite
Calcite
Calcite
Calcite
Quartz 
Quartz
Calcite
Quartz
Quartz
Quartz
Quartz
Quartz
Quartz
Epidote FoV 4mm
Albite FoV 5mm 
Epidote FoV 5mm
Calcite FoV 3cm
Heulandite FoV 5mm (Raman) 
Heulandite FoV 5mm (Raman) 
Heulandite 
Heulandite 
Heulandite FoV 1,7mm (Raman) 
Heulandite FoV 4mm (Raman) 
Tremolite-actinolite series Pyrite FoV 5mm (same bolder as the Adularia)
Marcasite Calcite FoV 4,5mm 
chabasite 
Chabasite 
Tridymite on epidote FoV 1,9mm
