INSTORE clinozoisite 2I was once one of those minerals most aptly described as “of interest to collectors only,” but recent scientific research has found uses for me as a “fixing agent” in the production of hydrogen gas for use in fuel cells and secondly as an element in protective clothing. While I was discovered rather late (1896 in Tyrol, Austria), I’m a fairly common calcium aluminum silicate and take my name from my resemblance to a companion in the Epidote series. All pretty heavy stuff, I know. But when not hard at work with serious science nerds, I can be faceted to form a very pleasing cut stone.

Who am I?

Guess this gem for a chance to win a “Jewelry Geek” T-shirt. Be sure to include your full name and the name and address of your store. The contest winner will be selected from among correct answers to this question.

Fill out my online form.
This story is tagged under: