IN TERRA VERITAS

How Native Americans adorned themselves with Bavarian pearls

In the soil of Upper Franconia at the Ochsenkopf mountain – the second highest mountain of the Fichtelgebirge – there is a strip of the rare rock proterobas, about 7km long and only 20m wide, which exists only in this one place in the whole of Central Europe. Proterobas is a fine-grained subvolcanic material that can be melted like glass and has be...
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