Euclase is beryllium aluminum hydroxide silicate. At 7 ½ in hardness it is fine for a gemstone, its perfect cleavage, however, makes it very hard to cut and polish successfully. Once cut there is no doubt that it is a gem.

There are occurrences in Brazil, Tanzania, Russia, Zimbabwe, Madagascar, and Austria.
Lore
Euclase is known to be a communication enhancement stone.
“This mineral has been called the ‘stone of happiness’. It can stimulate happiness in one’s life through activity, not only governed by reason, but governed by the heart, intuition, and serendipity.” 1
It is known to enhance altruism, selflessness, and generosity; and is sometimes used by healers to promote happiness and joy; relieving stress and pain.
1)
1) 1) Melody "Love is in the Earth- A Kaleidoscope of Crystals - The Reference Book Describing the Metaphysical Properties of the Mineral Kingdom" pg. 160