Locality
10°50´ east longitude, 63°50´ north latitiude   [ map ]

Name
Trondheim, Norway, Europa

Personal relationship of donor
Collection of rocks of economic importance

Historical relevance of location
Building stone with a registered trade name: Gletcherweiss. The rock comes from the Caledonian mountain belt of Norway.

Geological relevance of location
Mountains of folded Lower Paleozoic rocks, including former oceanic crust, the Caledonides, extend from the British Islands to Norway. Quartzite is a major type of rock in these mountains.

Classification of the earth

Structure	consolidated rock composed almost wholly of quartz
Colour	light grey
Age	Ordovician, 440 - 500 million years
other	\\\"Gletscherweiss\\\" quartzite

Donor

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