FREE: RARE! COLOR CHANGE DIASPORE

The listing, RARE! COLOR CHANGE DIASPORE has ended.

I had a hard time getting pictures to capture the beauty of these stones. This is a matched pair of untreated, natural earth mined color change diaspore. Each stone is 5.1 x 4.1 mm, total carat weight is 0.74 (3/4 of a carat). This stone is a pale green by day and a peachy pink in artificial lighting.
Color change diaspore is an aluminum oxide hydroxide mineral, and it is one of three major mineral components of bauxite. Bauxite is an important ore of aluminum widely used for many industrial purposes. Gemstone quality diaspore is extremely rare, and as its descriptive name suggests, it has a unique ability to change color when viewed under different lighting conditions. Only a few gem types are known to possess the ability to color change, which also includes alexandrite (chrysoberyl), sapphire, andesine and garnet.