Labradorite Tumbled Stone is a medium sized polished tumbled stone and is approximately 3/4" in size. Labradorite is truly a fascinating mineral. Labradorite can produce a colorful play of light across cleavage planes and in sliced sections called labradorescence. The usually intense colors range from the typical blues and violets through greens, yellows and oranges. Some rare specimens display all these colors simultaneously.