The history of Unfading Purple (Trinity Slate) natural roofing slate from Newfoundland, Canada
By Sheena Owen Oct 17th, 2018
Trinity Slate's unfading purple slate was discovered in 1497. In the mid 1800's, almost four hundred years later, excellent and extensive slate deposits were found - the oldest slate deposits in North America.
A Cambrian formation, similar to the famous slate deposits of Wales, which date back over 500 million years. These slates were subjected to the greatest metamorphic compression.