The Aurora Borealis or A.B. prism is a type of crystal prism that has the refraction effect applied to the prism. The term "Aurora" refers to the Aurora Borealis (or norther lights), a natural phenomena that occurs closer to the magnetic North pole, that creates a magnificent display of color in the night sky.
The A.B. prism reminds us of the Northern Lights with it's color movement and effect on a lighting project. Most A.B. crystal today are made with a coating that is applied and kiln fired onto the prism during the manufacturing process. Usually an Aurora Borealis prism is slightly more costly due to the added manufacturing required to creae such an appealing effect. Care should be taken while cleaning an A.B. prism. While this coating is durable, some chemicals can effect the coating and damage the beauty of the prism. So no harsh chemicals should be used during the cleaning process.
ChandelierParts.com stocks all types of prisms, balls, octagons, pendalogues and other prisms in Aurora Borealis.