Brewsterite

This specimen features several well-formed crystals of Brewsterite-(Sr), a rare strontium-rich member of the zeolite family. It originates from the well-known Yellow Lake occurrence in British Columbia, Canada, a classic locality for this species. The small thumbnail specimen shows several sparkly, translucent, light pink to colourless crystals on a bit of matrix, with the largest measuring up to 5 mm. A good example of this rare mineral!