X-Cube is composed of 4 pieces of glued glass prisms with dichroic surface coating. Originally used as RGB splitter in projectors but has become very popular to facet.

The glass is K9 (Borosilicate) with an RI of about 1.52. There are many opinions and likes about how the X should be oriented. But no matter how, the result will be a spectacular jewel.

Size approx. 20x20x17 mm.