Felsite Sentence Examples
- The orthoschists are white mica-schists produced by the shearing of acid rocks, such as felsite and porphyry.
- In the south of the island there are sills and dykes of felsite, quartz-porphyry, rhyolite, trachyte and pitchstone.
- The felsite sheets are well represented in Holy Island.
- It is worthy of note that the dykes and sheets of felsite are seldom pierced by the basalt dykes and are probably about the most recent of the intrusive rocks.