Chert from Oppelhain in Lower Lusatia, Germany
Schlüsselwörter
colourful,
chert,
patch,
lower,
brandenburg,
german,
ice,
age,
deposit,
fluvial,
sediment,
polished,
pebble,
gravel,
rock,
stone,
mineral,
geology,
mineralogy,
science,
crystal,
pattern,
texture,
surface,
earth,
nature,
natural,
collection,
collectable,
silica,
quartz,
closeup,
macro,
boulder,
object
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