Virtual museum of Canada
Collections from Storage: A Visit to our Hidden Treasures

This mineral of prismatic crystalline structure is an epidote. It is considered to be a decorative stone. It is part of a group of silicates derived from silica. It often presents traces of magnesium and manganese and its colour, which depends on the amount of iron it contains, is usually clear to dark shades of green.

A wide variety of igneous rocks contain epidote as a secondary mineral, but bigger specimens usually appear as veins in regions exposed to contact metamorphism. This specimen comes from one of these areas, Whitehorse, in the Yukon. It was part of an old collection prepared by the Department of Mines of Canada.

Pale green epidote

Credits : Musée de la nature et des sciences, Sherbrooke

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