Beautiful, 5 carat teal green old stock tourmaline crystal fragment from Africa

This is a beautiful little specimen piece with a gorgeous rainbow in it, which is unusual for tourmaline. The blue-green color is very soon soothing to the eye into the heart. This would be great for wire wrapping! Is Crystal weighs 5.05 carats and measures approximately 14 x 6.5 x 5.75 mm