[One-Earth-Altar]

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Book 6/7/7

Locality
10°38´ east longitude, 51°81´ north latitiude   [ map ]

Name
Clausthal-Zellerfeld, Harz Mts., Germany, Europa

Historical relevance of location
Good quality Devonian slate was used for roofing. Mining it required little energy, but considerable manual labor.

Classification of the earth
Structure roofing slate
Colour grey
Age Devonian

Donor

Geoscientific Collections Section of the Federal Institute for Geosciences and Natural Resources,
 Geological Survey of Lower Saxony,
 Hannover,
 Germany

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