Someone told me the other day that there's only 6 types of rock to found in the Netherlands. Is this true?
6?? about natural rocks I'd say 4, at the most*.
1 is flint; pebbles and nodules in the sandy deposits of the great rivers, the second is granite, the big boulders left by Ice Age glaciers.
for example our famous Hunebed (monolithic builders piling up menhirs) contraptions are made of granite.
the third would be sandstone, but that's only present in some places; and the last is "lime", but not exactly lime.
it's the Cretaceous rock found in the south-eastern parts of the Netherlands, the only parts that go above 100m over sealevel.
these hills are formed by the old Cretaceous yellowish seabed and yield a kind of sandy-like limestone wich is full of fossils.
in fact it almost IS pure fossil, mostly dead plancton, but we found the occasional Giant Turtle or Mosasaur in there as well.
In Dutch "Maas-hagedis" (Meuse/Mosa Lizard), the 'Maas/Meuse/Mose' being the river wich cuts through those hills.
I don't suppose you get much in Holland either.
In HOLLAND (wich is only the western part of the Netherlands**) we find NO natural rocks at all, since it's all formed on either dry-pumped seabed (sand) or dry-pumped riverdelta/swamp (clay).
*of course in our garden-, aquarium- and stone-stores we can buy about a thousand kinds of rock, imported from all over the globe; even Welsh Slate or Texas holey rock.
**you wouldn't say to any Scot or Welshman that he's from England right? I'm NOT from Holland either.
Dutch, yes; Netherlands too; but I ain't no Hollander
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