Geoscience Garden

Tonalite (4)

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General Lithology:Tonalite
Description:A granitoid rock consisting mainly of the minerals quartz and feldspar, formed by the slow cooling of molten magma deep in the Earth's crust. This rock resembles granite, but the feldspars it contains have less potassium and more sodium than a true granite.
Representing:An intrusion of unknown age which has produced mineralization in the surrounding area.
Where:Mineral deposit
Latitude:53.529483
Longitude:-113.524341
Original location:Rochester, Alberta

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