Corundum is the name derived from the Tamil language meaning Ruby. Corundum is the crystalline form of aluminium and can be found in a variety of colours.

Synthetic corundum is a laboratory created synthetic stone the chemical properties of which are similar to those found in naturally occurring stones. Impurities are non-existent in the synthetic stone. Synthetic Corundum is a robust material and can scratch almost every other stone apart from a diamond and is widely used in industrial applications. It is also a very dense material, which is unusual, since the mineral in its natural form is composed of low atomic mass elements such as aluminium and oxygen. There are various methods used to produce Synthetic Corundum, the Flame Fusion and Verneuil Processes are the most common.

Not only are synthetic corundum stones used for jewellery but they also have industrial uses and their properties of hardness, clarity and resistance to scratches makes them ideal for optical purposes. Corundum remains transparent in situations where ultraviolet and infrared radiation is present.

Synthetic Corundum can be made in several colours depending on the impurities that are added. For example, deep red colour stones will be named Ruby and blue or green coloured stones will be named Sapphire.

**THESE STONES ARE NOT SUITABLE FOR KILN FIRING** 

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