Andalusite is a lesser known gemstone named after a Spanish autonomous community where it was first discovered, Andalusia. Andalusite is a strikingly beautiful gem, but it is largely unknown to the general public and considered to be one of the lesser-known gem types in the trade.

Andalusite colors depend on the orientation of the crystal, but it typically occurs in yellow, yellow-green, green, brownish-red, olive and reddish-brown. Most stones exhibit two colors that differ in intensity,also called pleochroism, which results in a mosaic of different colors when viewed from different angles. Often times, colors blend together, which is especially seen in square and round-cut gemstones.

The attraction and new-found appreciation for andalusite is greatly owed to its unmistakable and unique twist on play of color. For many years, andalusite has primarily been a collector's stone, but it has recently gained a lot of attention from many jewelry designers.