Orbiculite
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Description:
Orbiculite from W-Australia - can be visited opposite of the holocaust memorial in Tiergarten. Maybe the oldest exposed rock in Berlin - older than 2 billion years. See also www.globalstone.de/ comes from near Mount Magnet in Western Australia. The orbicules occur in a granodiorite matrix. They consist of andesine, plagioclase, hornblende biotite arranged radially around a core of plagioclase or hornblende or less commonly mafic schist.
Credit:
Mario Wipki
, GFZ Potsdam , Potsdam - Germany
Other images by this photographer (2 images)
When:
Submitted on Ιανουάριος 10, 2010
Sections:
Categories:
- Field (387 images)
Camera:
Canon
Model:
D350