Felsite
| Felsite is a general term for all light-coloured volcanic rocks. The most
common variety, which is the fine-grained or volcanic equivalent of granite, is called rhyolite.
Felsites are generally granular, rough to the touch, and in some cases show a series of
more or less parallel bands of different colours called flow bands. These may be
wavy and swirly and can therefore be distinguished from sedimentary bedding or metamorphic foliation. Felsites are
not common in British Columbia but can be important indicators for exploration of some
metallic mineral deposits. |
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Last updated May 12, 2005
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